Rozenblyum, G. V.; Shubin, M. A.; Solomyak, M. Z. Spectral theory of differential operators. (English) Zbl 0805.35081 Partial differential equations VII. Encycl. Math. Sci. 64, 1-261 (1994). MSC: 35P05 35P20 35-02 35J10 35L20 PDF BibTeX XML Cite \textit{G. V. Rozenblyum} et al., Encycl. Math. Sci. 64, 1--261 (1989; Zbl 0805.35081) OpenURL
Akhmedov, R. G. The collocation method for a second order differential equation. (Russian) Zbl 0761.65087 Numerical methods for solving boundary value problems, Themat. Collect. Sci. Works, Baku, 13-18 (1989). Reviewer: B.Maslowski MSC: 65N35 65N12 35J25 PDF BibTeX XML Cite \textit{R. G. Akhmedov}, in: Chislennye metody resheniya kraevykh zadach. Tematicheskij sbornik nauchnykh trudov. Baku: Izdatel'stvo Azerbajdzhanskogo Universiteta. 13--18 (1989; Zbl 0761.65087) OpenURL
Mirzoev, S. S. Solvability of boundary value problems for second order operator- differential equations in spaces with weight. (Russian) Zbl 0758.34049 Linear operators and their applications, Themat. Collect. Sci. Works, Baku, 46-49 (1989). Reviewer: S.I.Trofimchuk (Kiev) MSC: 34G10 47D06 PDF BibTeX XML Cite \textit{S. S. Mirzoev}, in: Linejnye operatory i ikh prilozheniya. Tematicheskij sbornik nauchnykh trudov. Baku: Izdatel'stvo Azerbajdzhanskogo Universiteta. 46--49 (1989; Zbl 0758.34049) OpenURL
Sabodash, P. F. Elastic transverse waves initiated in an infinite medium by rotation of a circular cone. (English. Russian original) Zbl 0736.73019 Sov. Appl. Mech. 25, No. 8, 797-801 (1989); translation from Prikl. Mekh., Kiev 25, No. 8, 66-70 (1989). MSC: 74J10 74S30 34A25 35G10 44A15 PDF BibTeX XML Cite \textit{P. F. Sabodash}, Sov. Appl. Mech. 25, No. 8, 797--801 (1989; Zbl 0736.73019); translation from Prikl. Mekh., Kiev 25, No. 8, 66--70 (1989) Full Text: DOI OpenURL
Szpunar-Łojasiewicz, Wanda On certain type of differential equation. (English) Zbl 0753.34031 Zesz. Nauk. Akad. Górn.-Hutn. Stanisł. Staszica 1277, Opusc. Math. 5, 157-163 (1989). Reviewer: E.Brommundt (Braunschweig) MSC: 34D05 34C25 34D20 70K25 PDF BibTeX XML Cite \textit{W. Szpunar-Łojasiewicz}, Zesz. Nauk. Akad. Górn.-Hutn. Stanisł. Staszica, Opusc. Math. 1277(5), 157--163 (1989; Zbl 0753.34031) OpenURL
Razhapov, R. On existence of solutions of second order nonlinear integro-differential equations with self-controlled lag, which are representable in the form of some asymptotic formulas. (Russian) Zbl 0805.45007 Rafatov, R. (ed.), Some problems in the theory of differential, integro- differential equations and their applications. Collection of scientific works. Frunze: Frunzenskij Politekhnicheskij Institut, 35-41 (1989). MSC: 45J05 45G10 45M05 PDF BibTeX XML Cite \textit{R. Razhapov}, in: Nekotorye zadachi teorii differentsial'nykh, integro-differentsial'nykh uravnenij i ikh prilozhenij. Sbornik nauchnykh trudov. Frunze: Frunzenskij Politekhnicheskij Institut. 35--41 (1989; Zbl 0805.45007) OpenURL
Romankov, V. V. On some theorems of convergence of solutions for a second order differential equation. (Russian) Zbl 0803.34045 Kutukova, L. T. (ed.), Dynamical systems. Interuniversity collection of scientific works. Yakutsk: Yakutskij Gosudarstvennyj Universitet, 52-57 (1989). Reviewer: W.Müller (Berlin) MSC: 34D20 34D05 PDF BibTeX XML Cite \textit{V. V. Romankov}, in: Dinamicheskie sistemy. Mezhvuzovskij sbornik nauchnykh trudov. Yakutsk: Yakutskij Gosudarstvennyj Universitet. 52--57 (1989; Zbl 0803.34045) OpenURL
Zubova, A. F. Design and construction of objects of motion with the help of an electronic computer. (Russian) Zbl 0803.34047 Kutukova, L. T. (ed.), Dynamical systems. Interuniversity collection of scientific works. Yakutsk: Yakutskij Gosudarstvennyj Universitet, 18-25 (1989). Reviewer: W.Müller (Berlin) MSC: 34D20 68U07 42A16 PDF BibTeX XML Cite \textit{A. F. Zubova}, in: Dinamicheskie sistemy. Mezhvuzovskij sbornik nauchnykh trudov. Yakutsk: Yakutskij Gosudarstvennyj Universitet. 18--25 (1989; Zbl 0803.34047) OpenURL
Pasquini, L. Polynomial solutions to second order linear homogeneous ordinary differential equations. Properties and approximation. (English) Zbl 0787.34018 Calcolo 26, No. 2-4, 167-183 (1989). MSC: 34A45 34A30 33C65 41A10 65L99 PDF BibTeX XML Cite \textit{L. Pasquini}, Calcolo 26, No. 2--4, 167--183 (1989; Zbl 0787.34018) Full Text: DOI OpenURL
Mikhalochkin, N. A.; Geletukha, V. V. Procedure for determining the dispersion and correlation matrices for a multidimensional random process. (English. Russian original) Zbl 0792.60030 J. Sov. Math. 67, No. 3, 3143-3148 (1993); translation from Vychisl. Prikl. Mat., Kiev 69, 135-141 (1989). MSC: 60G12 60H10 PDF BibTeX XML Cite \textit{N. A. Mikhalochkin} and \textit{V. V. Geletukha}, J. Sov. Math. 67, No. 3, 1 (1989; Zbl 0792.60030); translation from Vychisl. Prikl. Mat., Kiev 69, 135--141 (1989) Full Text: DOI OpenURL
Evolution equations and their applications. Proceedings of a symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto (Japan), October 24-26, 1988. (Japanese) Zbl 0722.35002 RIMS Kokyuroku, 698. Kyoto: Kyoto University, Research Institute for Mathematical Sciences. ii, 187 p. (1989). MSC: 35-06 47-06 00B25 35K55 35K57 35K65 35K35 35G10 35K25 35K20 35R30 PDF BibTeX XML Cite Evolution equations and their applications. Proceedings of a symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto (Japan), October 24-26, 1988 (Japanese). Kyoto: Kyoto University, Research Institute for Mathematical Sciences (1989; Zbl 0722.35002) OpenURL
Aleksidze, M. A. Fundamental functions of the equations of mathematical physics in the approximate solutions of boundary value problems. Part 1. (Фундаментальные функции уравнений математической физики в приближенных решениях граничных задач. Часть 1.) (Russian) Zbl 0752.65078 Tbilisi: Izdatel’stvo Tbilisskogo Universiteta. 412 p. (1989). Reviewer: Gerald W. Hedstrom (Livermore) MSC: 65N38 65-02 65R20 35C15 45E10 35J05 35J25 PDF BibTeX XML Cite \textit{M. A. Aleksidze}, Фундаментальные функции уравнений математической физики в приближенных решениях граничных задач. Часть 1 (Russian). Tbilisi: Izdatel'stvo Tbilisskogo Universiteta (1989; Zbl 0752.65078) OpenURL
Zauderer, Erich Partial differential equations of applied mathematics. 2nd ed. (English) Zbl 0699.35003 Pure and Applied Mathematics. New York etc.: John Wiley & Sons, Inc. xiii, 891 p. £51.30 (1989). Reviewer: A.Müller-Rettkowski MSC: 35-01 35J05 35L20 35A08 35A15 35A22 35B20 35B50 35C15 35C20 35L67 35L70 35Q30 35Q99 44A10 PDF BibTeX XML Cite \textit{E. Zauderer}, Partial differential equations of applied mathematics. 2nd ed. New York etc.: John Wiley \&| Sons, Inc. (1989; Zbl 0699.35003) OpenURL
Strauss, Walter A. Nonlinear wave equations. Expository lectures from the CBMS regional conference held at George Mason University, January 16-22, 1989. (English) Zbl 0714.35003 Conference Board of the Mathematical Sciences. Regional Conference Series in Mathematics, 73. Providence, RI: American Mathematical Society (AMS). x, 91 p. $ 21.00 (1989). Reviewer: H.Koch MSC: 35-02 35L70 35K55 81T13 35P25 35Q40 35Q60 PDF BibTeX XML Cite \textit{W. A. Strauss}, Nonlinear wave equations. Expository lectures from the CBMS regional conference held at George Mason University, January 16-22, 1989. Providence, RI: American Mathematical Society (1989; Zbl 0714.35003) OpenURL
Raitums, U. Problems of optimal control for elliptic equations. Mathematical questions. (Zadachi optimal’nogo upravleniya dlya ehllipticheskikh uravnenij. Matematicheskie voprosy.) (Russian) Zbl 0693.49003 Latvijskij Gosudarstvennyj Universitet Im. P. Stuchki. Riga: Zinatne. 278 p. R. 1.30 (1989). Reviewer: M.Goebel MSC: 49J20 49K20 49-02 35J65 49J45 PDF BibTeX XML Cite \textit{U. Raitums}, Zadachi optimal'nogo upravleniya dlya ehllipticheskikh uravnenij. Matematicheskie voprosy (Russian). Riga: Zinatne (1989; Zbl 0693.49003) OpenURL
Mercier, Bertrand An introduction to the numerical analysis of spectral methods. (Transl. of report CEA-N-2278, dated 1981, of the French Atomic Energy Commission, titled ‘Analyse numérique des méthodes spectrales’). (English) Zbl 0682.65073 Lecture Notes in Physics, 318. Berlin etc.: Springer-Verlag. v, 154 p. DM 39.00 (1989). Reviewer: F.v.Finckenstein MSC: 65N35 65-02 65L60 65M60 34B05 35K05 35K20 PDF BibTeX XML Cite \textit{B. Mercier}, An introduction to the numerical analysis of spectral methods. (Transl. of report CEA-N-2278, dated 1981, of the French Atomic Energy Commission, titled `Analyse numérique des méthodes spectrales'). Berlin etc.: Springer-Verlag (1989; Zbl 0682.65073) OpenURL
Dimitrovski, Dragan S.; Cveić, Stana D. The general variation of constants problem in the normal differential equation of second order. (Le problème général de la variation des constantes dans l’équation différentielle normale du second ordre.) (Macedonian. French summary) Zbl 0779.34007 Mat. Bilt. 13, 35-43 (1989). MSC: 34A25 34A05 PDF BibTeX XML Cite \textit{D. S. Dimitrovski} and \textit{S. D. Cveić}, Mat. Bilt. 13, 35--43 (1989; Zbl 0779.34007) OpenURL
Nagle, R. Kent; Saff, Edward B. Fundamentals of differential equations. 2nd ed. (English) Zbl 0676.34002 Redwood City, LA etc.: Benjamin/Cummings Publishing Company, Inc. xv, 682 p. (1989). MSC: 34-01 34A30 44A10 65L05 34A12 65J99 34A45 PDF BibTeX XML Cite \textit{R. K. Nagle} and \textit{E. B. Saff}, Fundamentals of differential equations. 2nd ed. Redwood City, LA etc.: Benjamin/Cummings Publishing Company, Inc. (1989; Zbl 0676.34002) OpenURL
Kesavan, S. Topics in functional analysis and applications. (English) Zbl 0666.46001 New York etc.: John Wiley & Sons, Inc.; New Delhi: Wiley Eastern Limited. xii, 267 p. $ 39.50; £18.40 (1989). Reviewer: J.Lorenz MSC: 46-01 47-01 46E35 47F05 47D03 35-01 46F10 35A15 35K05 35L05 47J05 35J20 PDF BibTeX XML Cite \textit{S. Kesavan}, Topics in functional analysis and applications. New York etc.: John Wiley \&| Sons, Inc.; New Delhi: Wiley Eastern Limited (1989; Zbl 0666.46001) OpenURL
Lin, Ping A class of variational difference schemes for a singular perturbation problem. (English) Zbl 0732.65075 Appl. Math. Mech., Engl. Ed. 10, No. 4, 353-359 (1989). MSC: 65L10 65L12 65L60 34B05 34E15 PDF BibTeX XML Cite \textit{P. Lin}, Appl. Math. Mech., Engl. Ed. 10, No. 4, 353--359 (1989; Zbl 0732.65075) Full Text: DOI OpenURL
Zhemukhov, Kh. K. The Goursat problem for a fourth order quasi-linear hyperbolic equation. (Russian) Zbl 0729.45012 Mathematical modelling of physical processes, Collect. Sci. Works, Kiev, 54-57 (1989). Reviewer: G.Hedstrom (Livermore) MSC: 45K05 45G10 PDF BibTeX XML OpenURL
Bereslavskij, Eh. N. The forcing out of saline water by fresh water during filtration from a mole irrigator. (English. Russian original) Zbl 0728.76108 J. Appl. Math. Mech. 53, No. 3, 350-355 (1989); translation from Prikl. Mat. Mekh. 53, No. 3, 455-461 (1989). MSC: 76S05 35Q35 80A20 PDF BibTeX XML Cite \textit{Eh. N. Bereslavskij}, J. Appl. Math. Mech. 53, No. 3, 350--355 (1989; Zbl 0728.76108); translation from Prikl. Mat. Mekh. 53, No. 3, 455--461 (1989) Full Text: DOI OpenURL
Twizell, E. H.; Khaliq, A. Q. M. A family of predictor-corrector methods for second-order hyperbolic equations. (English) Zbl 0726.65110 Commun. Appl. Numer. Methods 5, No. 1, 47-51 (1989). MSC: 65M20 65M06 65L05 35L70 PDF BibTeX XML Cite \textit{E. H. Twizell} and \textit{A. Q. M. Khaliq}, Commun. Appl. Numer. Methods 5, No. 1, 47--51 (1989; Zbl 0726.65110) Full Text: DOI OpenURL
Podio-Guidugli, P.; Rosati, M.; Schiaffino, Andrea; Valente, Vanda Equilibrium of an elastic spherical cap pulled at the rim. (English) Zbl 0724.73101 SIAM J. Math. Anal. 20, No. 3, 643-663 (1989). MSC: 74G60 34B15 74K15 74S30 74P10 49J15 PDF BibTeX XML Cite \textit{P. Podio-Guidugli} et al., SIAM J. Math. Anal. 20, No. 3, 643--663 (1989; Zbl 0724.73101) Full Text: DOI OpenURL
Babuška, I.; Guo, B. Q. The h-p version of the finite element method for problems with nonhomogeneous essential boundary condition. (English) Zbl 0723.73077 Comput. Methods Appl. Mech. Eng. 74, No. 1, 1-28 (1989). Reviewer: W.Ehlers (Essen) MSC: 74S05 65N30 PDF BibTeX XML Cite \textit{I. Babuška} and \textit{B. Q. Guo}, Comput. Methods Appl. Mech. Eng. 74, No. 1, 1--28 (1989; Zbl 0723.73077) Full Text: DOI OpenURL
Qin, Chaobin; Qin, Yuanxun On a system of second order differential equations with periodic impulse coefficients. (English) Zbl 0721.34045 Acta Math. Appl. Sin., Engl. Ser. 5, No. 4, 298-309 (1989). MSC: 34C25 34A25 34C10 34D20 34A05 34A37 PDF BibTeX XML Cite \textit{C. Qin} and \textit{Y. Qin}, Acta Math. Appl. Sin., Engl. Ser. 5, No. 4, 298--309 (1989; Zbl 0721.34045) Full Text: DOI OpenURL
Kroopnick, Allan J. Bounded but terminating solutions to a second order differential equation. (English) Zbl 0718.34046 Differential equations and applications, Proc. Int. Conf., Columbus/OH (USA) 1988, Vol. II, 53-55 (1989). MSC: 34C11 34A12 PDF BibTeX XML OpenURL
Mickens, Ronald E. Investigation of finite-difference models of the Van der Pol equation. (English) Zbl 0717.65045 Differential equations and applications, Proc. Int. Conf., Columbus/OH (USA) 1988, Vol. II, 210-215 (1989). Reviewer: I.Ginchev MSC: 65L05 65L12 37-XX 34A34 34C05 PDF BibTeX XML OpenURL
Inozemtsev, V. I. Matrix analogues of elliptic functions. (English. Russian original) Zbl 0716.34003 Funct. Anal. Appl. 23, No. 4, 323-325 (1989); translation from Funkts. Anal. Prilozh. 23, No. 4, 81-82 (1989). MSC: 34A25 70F10 33E05 PDF BibTeX XML Cite \textit{V. I. Inozemtsev}, Funct. Anal. Appl. 23, No. 4, 323--325 (1989; Zbl 0716.34003); translation from Funkts. Anal. Prilozh. 23, No. 4, 81--82 (1989) Full Text: DOI OpenURL
Kozlova, M. V. Homogenization of three-dimensional elasticity problem for a thin inhomogeneous bar. (English. Russian original) Zbl 0715.73005 Mosc. Univ. Math. Bull. 44, No. 5, 5-10 (1989); translation from Vestn. Mosk. Univ., Ser. I 1989, No. 5, 6-10 (1989). Reviewer: J.L.Nowinski MSC: 74E05 34C29 34D05 74K10 PDF BibTeX XML Cite \textit{M. V. Kozlova}, Mosc. Univ. Math. Bull. 44, No. 5, 5--10 (1989; Zbl 0715.73005); translation from Vestn. Mosk. Univ., Ser. I 1989, No. 5, 6--10 (1989) OpenURL
Skopetskii, V. V.; Deineka, V. S.; Artemenko, A. L. Discretization of an equation of parabolic type with discontinuous solution by the finite element method. (Russian) Zbl 0715.65077 Vychisl. Prikl. Mat., Kiev 68, 77-85 (1989). Reviewer: C. I. Gheorghiu MSC: 65M60 65M20 35K15 80M10 65L05 PDF BibTeX XML Cite \textit{V. V. Skopetskii} et al., Vychisl. Prikl. Mat. 68, 77--85 (1989; Zbl 0715.65077) OpenURL
Rozenblyum, G. V.; Solomyak, M. Z.; Shubin, M. A. Spectral theory of differential operators. (Russian) Zbl 0715.35057 Itogi Nauki Tekh., Ser. Sovrem. Probl. Mat., Fundam. Napravleniya 64, 248 p. (1989). Reviewer: J.Appell MSC: 35P05 35P20 35-02 35J10 35L20 PDF BibTeX XML OpenURL
Orlovskij, D. G. An inverse problem for a second-order differential equation in Banach space. (English. Russian original) Zbl 0715.34112 Differ. Equations 25, No. 6, 730-738 (1989); translation from Differ. Uravn. 25, No. 6, 1000-1009 (1989). MSC: 34G10 34A55 35Q72 93B05 PDF BibTeX XML Cite \textit{D. G. Orlovskij}, Differ. Equations 25, No. 6, 730--738 (1989; Zbl 0715.34112); translation from Differ. Uravn. 25, No. 6, 1000--1009 (1989) OpenURL
Tsapenko, N. E. New formulas for an approximate solution of the one-dimensional wave equation. (English. Russian original) Zbl 0715.34020 Differ. Equations 25, No. 11, 1370-1374 (1989); translation from Differ. Uravn. 25, No. 11, 1941-1946 (1989). MSC: 34A45 34C20 PDF BibTeX XML Cite \textit{N. E. Tsapenko}, Differ. Equations 25, No. 11, 1370--1374 (1989; Zbl 0715.34020); translation from Differ. Uravn. 25, No. 11, 1941--1946 (1989) OpenURL
Fushchich, V. I.; Shtelen’, V. M. On approximate symmetry in solutions of the nonlinear wave equation with a small parameter. (Russian. English summary) Zbl 0714.35050 Dokl. Akad. Nauk Ukr. SSR, Ser. A 1989, No. 8, 18-21 (1989). Reviewer: E.D.Belokolos MSC: 35L70 35Q99 PDF BibTeX XML Cite \textit{V. I. Fushchich} and \textit{V. M. Shtelen'}, Dokl. Akad. Nauk Ukr. SSR, Ser. A 1989, No. 8, 18--21 (1989; Zbl 0714.35050) OpenURL
Bogomolova, E. P.; Pechentsov, A. S. Basic properties of the system of eigenfunctions of a boundary value problem with a multiple root of the characteristic polynomial. (English. Russian original) Zbl 0714.34122 Mosc. Univ. Math. Bull. 44, No. 4, 23-31 (1989); translation from Vestn. Mosk. Univ., Ser. I 1989, No. 4, 17-22 (1989). MSC: 34L10 PDF BibTeX XML Cite \textit{E. P. Bogomolova} and \textit{A. S. Pechentsov}, Mosc. Univ. Math. Bull. 44, No. 4, 23--31 (1989; Zbl 0714.34122); translation from Vestn. Mosk. Univ., Ser. I 1989, No. 4, 17--22 (1989) OpenURL
Laitochová, Jitka On a fundamental central dispersion of the first kind and the Abel functional equation in strongly regular spaces of continuous functions. (English) Zbl 0714.34112 Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 28, 165-175 (1989). Reviewer: T.Dłotko MSC: 34K99 34C10 34C11 PDF BibTeX XML Cite \textit{J. Laitochová}, Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 28, 165--175 (1989; Zbl 0714.34112) Full Text: EuDML OpenURL
Kadelburg, Eh.; Martinović, M. Spectral function of a second-order functional-differential operator. (English. Russian original) Zbl 0714.34103 Differ. Equations 25, No. 11, 1317-1322 (1989); translation from Differ. Uravn. 25, No. 11, 1882-1888 (1989). MSC: 34K10 34L05 PDF BibTeX XML Cite \textit{Eh. Kadelburg} and \textit{M. Martinović}, Differ. Equations 25, No. 11, 1317--1322 (1989; Zbl 0714.34103); translation from Differ. Uravn. 25, No. 11, 1882--1888 (1989) OpenURL
Dovletov, D. M. A nonlocal boundary-value problem of the first kind, with both differential and finite-difference analysis. (English. Russian original) Zbl 0714.34034 Differ. Equations 25, No. 8, 917-924 (1989); translation from Differ. Uravn. 25, No. 8, 1297-1307 (1989). MSC: 34B10 PDF BibTeX XML Cite \textit{D. M. Dovletov}, Differ. Equations 25, No. 8, 917--924 (1989; Zbl 0714.34034); translation from Differ. Uravn. 25, No. 8, 1297--1307 (1989) OpenURL
Paukshto, M. V. On a combinatorial identity associated with differential equations of infinite order. (Russian) Zbl 0714.34028 Colloq. Math. 57, No. 1, 153-156 (1989). MSC: 34B05 34A35 05A10 35J25 PDF BibTeX XML Cite \textit{M. V. Paukshto}, Colloq. Math. 57, No. 1, 153--156 (1989; Zbl 0714.34028) Full Text: DOI OpenURL
Mikhalochkin, N. A.; Geletukha, V. V. A procedure of determination of the variance and correlation matrices of a multi-dimensional stochastic process. (Russian) Zbl 0713.60046 Vychisl. Prikl. Mat., Kiev 69, 135-141 (1989). Reviewer: F.Liese MSC: 60G12 60H10 PDF BibTeX XML Cite \textit{N. A. Mikhalochkin} and \textit{V. V. Geletukha}, Vychisl. Prikl. Mat. 69, 135--141 (1989; Zbl 0713.60046) OpenURL
Tesaříková, Eva On the properties of central dispersions of linear second order differential equations being of finite type-special. (English) Zbl 0713.34012 Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 28, 177-189 (1989). Reviewer: Ge Weigao MSC: 34A30 PDF BibTeX XML Cite \textit{E. Tesaříková}, Acta Univ. Palacki. Olomuc., Fac. Rerum Nat., Math. 28, 177--189 (1989; Zbl 0713.34012) Full Text: EuDML OpenURL
Bereslavskij, Eh. N. On integration in closed form of a class of Fuchs equations and its application. (Russian) Zbl 0713.34002 Differ. Uravn. 25, No. 6, 1048-1050 (1989). Reviewer: S.G.Hristova MSC: 34A05 34A99 PDF BibTeX XML Cite \textit{Eh. N. Bereslavskij}, Differ. Uravn. 25, No. 6, 1048--1050 (1989; Zbl 0713.34002) OpenURL
Lakshmikantham, V. Periodic boundary value problems of first and second order differential equations. (English) Zbl 0712.34058 J. Appl. Math. Simulation 2, No. 3, 131-138 (1989). Reviewer: I.Troch MSC: 34C25 34B15 PDF BibTeX XML Cite \textit{V. Lakshmikantham}, J. Appl. Math. Simulation 2, No. 3, 131--138 (1989; Zbl 0712.34058) Full Text: DOI OpenURL
Hu, Shouchuan; Lakshmikantham, V. Periodic boundary value problems for second order impulsive differential systems. (English) Zbl 0712.34033 Nonlinear Anal., Theory Methods Appl. 13, No. 1, 75-85 (1989). Reviewer: B.Shekhter MSC: 34B15 PDF BibTeX XML Cite \textit{S. Hu} and \textit{V. Lakshmikantham}, Nonlinear Anal., Theory Methods Appl. 13, No. 1, 75--85 (1989; Zbl 0712.34033) Full Text: DOI OpenURL
Gheorghiu, C. I. On a linear singularly perturbed two-point boundary value problem. (English) Zbl 0712.34028 Prepr., “Babeș-Bolyai” Univ., Fac. Math. Phys., Res. Semin. 1989, No. 1, 67-74 (1989). Reviewer: I.Troch MSC: 34B10 34B05 34E15 PDF BibTeX XML Cite \textit{C. I. Gheorghiu}, Prepr., ``Babeș-Bolyai'' Univ., Fac. Math. Phys., Res. Semin. 1989, No. 1, 67--74 (1989; Zbl 0712.34028) OpenURL
Lenyuk, M. P.; Cheban, V. G. Calculation of a class of improper integrals by the method of hybrid Fourier-Hankel integral transform of second Fourier-kind. (Russian) Zbl 0712.34027 Izv. Akad. Nauk Mold. SSR, Ser. Fiz.-Tekh. Mat. Nauk 1989, No. 3, 7-13 (1989). Reviewer: J.Jarnik MSC: 34B10 PDF BibTeX XML Cite \textit{M. P. Lenyuk} and \textit{V. G. Cheban}, Izv. Akad. Nauk Mold. SSR, Ser. Fiz.-Tekh. Mat. Nauk 1989, No. 3, 7--13 (1989; Zbl 0712.34027) OpenURL
Sofronov, I. L. A numerical iterative method for solving regular elliptic problems. (English. Russian original) Zbl 0708.65098 U.S.S.R. Comput. Math. Math. Phys. 29, No. 3, 193-201 (1989); translation from Zh. Vychisl. Mat. Mat. Fiz. 29, No. 6, 923-934 (1989). MSC: 65N22 65F10 35J25 PDF BibTeX XML Cite \textit{I. L. Sofronov}, U.S.S.R. Comput. Math. Math. Phys. 29, No. 3, 193--201 (1989; Zbl 0708.65098); translation from Zh. Vychisl. Mat. Mat. Fiz. 29, No. 6, 923--934 (1989) Full Text: DOI OpenURL
Lai, Shaoyong; Du, Xinhua Analysis of singularities of solutions to semilinear wave equation \(\square u=f(t,x,u,Du)\) in high space dimensions. (Chinese) Zbl 0707.35097 Chin. Ann. Math., Ser. A 10, No. 4, 464-468 (1989). MSC: 35L70 35B99 PDF BibTeX XML Cite \textit{S. Lai} and \textit{X. Du}, Chin. Ann. Math., Ser. A 10, No. 4, 464--468 (1989; Zbl 0707.35097) OpenURL
Krol, M. S. On a Galerkin-averaging method for weakly non-linear wave equations. (English) Zbl 0707.35095 Math. Methods Appl. Sci. 11, No. 5, 649-664 (1989). Reviewer: P.K.Wong MSC: 35L70 34C29 42B05 PDF BibTeX XML Cite \textit{M. S. Krol}, Math. Methods Appl. Sci. 11, No. 5, 649--664 (1989; Zbl 0707.35095) Full Text: DOI OpenURL
Howes, F. A.; Shao, S. Asymptotic analysis of model problems for a coupled system. (English) Zbl 0707.34048 Nonlinear Anal., Theory Methods Appl. 13, No. 9, 1013-1024 (1989). Reviewer: L.Berg MSC: 34E15 PDF BibTeX XML Cite \textit{F. A. Howes} and \textit{S. Shao}, Nonlinear Anal., Theory Methods Appl. 13, No. 9, 1013--1024 (1989; Zbl 0707.34048) Full Text: DOI OpenURL
Feng, Youhe The boundedness of solutions of a nonlinear functional-differential equation of the second order. (Chinese. English summary) Zbl 0706.34059 Acta Math. Appl. Sin. 12, No. 2, 156-163 (1989). MSC: 34K99 34C11 PDF BibTeX XML Cite \textit{Y. Feng}, Acta Math. Appl. Sin. 12, No. 2, 156--163 (1989; Zbl 0706.34059) OpenURL
Ge, Weigao 2\(\pi\)-periodic solutions of second-order nonlinear differential equation \(x''+f(t,x)=0\). (Chinese. English summary) Zbl 0706.34041 Adv. Math., Beijing 18, No. 2, 203-208 (1989). MSC: 34C25 34A34 PDF BibTeX XML Cite \textit{W. Ge}, Adv. Math., Beijing 18, No. 2, 203--208 (1989; Zbl 0706.34041) Full Text: EuDML OpenURL
Yan, Jurang On the distance between zeroes and the limit-point problem. (English) Zbl 0705.34033 Proc. Am. Math. Soc. 107, No. 4, 971-975 (1989). Reviewer: P.K.Wong MSC: 34C10 34B20 PDF BibTeX XML Cite \textit{J. Yan}, Proc. Am. Math. Soc. 107, No. 4, 971--975 (1989; Zbl 0705.34033) Full Text: DOI OpenURL
Cariñena, José F.; López, Carlos; Martínez, Eduardo A geometric characterisation of Lagrangian second-order differential equations. (English) Zbl 0704.34017 Inverse Probl. 5, No. 5, 691-729 (1989). MSC: 34A99 70H03 PDF BibTeX XML Cite \textit{J. F. Cariñena} et al., Inverse Probl. 5, No. 5, 691--729 (1989; Zbl 0704.34017) Full Text: DOI OpenURL
Brykalov, S. A. Nonlinear boundary-value problem with solution breaks. (English. Russian original) Zbl 0703.34030 Differ. Equations 25, No. 12, 1459-1467 (1989); translation from Differ. Uravn. 25, No. 12, 2066-2075 (1989). Reviewer: P.S.Milojevic MSC: 34B15 PDF BibTeX XML Cite \textit{S. A. Brykalov}, Differ. Equations 25, No. 12, 1459--1467 (1989; Zbl 0703.34030); translation from Differ. Uravn. 25, No. 12, 2066--2075 (1989) OpenURL
Khrennikov, A. Yu. Pseudodifferential equations in functional superanalysis. II. The Feynman-Kac formula. (English. Russian original) Zbl 0702.35258 Differ. Equations 25, No. 3, 358-365 (1989); translation from Differ. Uravn. 25, No. 3, 505-514 (1989). Reviewer: A.Yu.Khrennikov MSC: 35S05 81T30 35K10 PDF BibTeX XML Cite \textit{A. Yu. Khrennikov}, Differ. Equations 25, No. 3, 358--365 (1989; Zbl 0702.35258); translation from Differ. Uravn. 25, No. 3, 505--514 (1989) OpenURL
Sadyrbaev, F. Zh. On the number of stationary solutions of a scalar parabolic equation. (Russian) Zbl 0702.35111 Latv. Mat. Ezheg. 33, 76-78 (1989). Reviewer: B.G.Konopelchenko MSC: 35K20 35A99 76R50 PDF BibTeX XML Cite \textit{F. Zh. Sadyrbaev}, Latv. Mat. Ezheg. 33, 76--78 (1989; Zbl 0702.35111) OpenURL
Nambu, Takao Strong continuity of the solution to the Lyapunov equation \(XL-BX=C\) relative to an elliptic operator L. (English) Zbl 0702.35069 Proc. Japan Acad., Ser. A 65, No. 3, 70-73 (1989). Reviewer: T.Nambu MSC: 35J25 47A62 93C20 35B20 47B38 PDF BibTeX XML Cite \textit{T. Nambu}, Proc. Japan Acad., Ser. A 65, No. 3, 70--73 (1989; Zbl 0702.35069) Full Text: DOI OpenURL
Fabrikant, A.; Marinov, M.; Rangelov, T. Properties of solutions of nonlinear filtration equations. (English) Zbl 0702.35029 C. R. Acad. Bulg. Sci. 42, No. 7, 15-18 (1989). Reviewer: G.Boillat MSC: 35B45 35B99 35K10 PDF BibTeX XML Cite \textit{A. Fabrikant} et al., C. R. Acad. Bulg. Sci. 42, No. 7, 15--18 (1989; Zbl 0702.35029) OpenURL
Biler, Piotr Asymptotic behaviour of strongly damped nonlinear hyperbolic equations. (English) Zbl 0702.35025 RAIRO, Modélisation Math. Anal. Numér. 23, No. 3, 379-384 (1989). Reviewer: P.Biler MSC: 35B40 35L20 34G20 PDF BibTeX XML Cite \textit{P. Biler}, RAIRO, Modélisation Math. Anal. Numér. 23, No. 3, 379--384 (1989; Zbl 0702.35025) Full Text: DOI EuDML OpenURL
Neuman, František Smoothness as an invariant property of coefficients of linear differential equations. (English) Zbl 0702.34034 Czech. Math. J. 39(114), No. 3, 513-521 (1989). Reviewer: M.E.Muldoon MSC: 34C20 34A30 PDF BibTeX XML Cite \textit{F. Neuman}, Czech. Math. J. 39(114), No. 3, 513--521 (1989; Zbl 0702.34034) Full Text: EuDML OpenURL
Šeda, Valter On some non-linear boundary value problems for ordinary differential equations. (English) Zbl 0702.34024 Arch. Math., Brno 25, No. 4, 207-222 (1989). MSC: 34B15 34B27 PDF BibTeX XML Cite \textit{V. Šeda}, Arch. Math., Brno 25, No. 4, 207--222 (1989; Zbl 0702.34024) Full Text: EuDML OpenURL
Gayek, J. E. Estimating euclidean reachable sets for retarded functional differential equations with bounded delay. (English) Zbl 0701.93006 J. Dyn. Syst. Meas. Control 111, No. 4, 626-630 (1989). MSC: 93B05 34K35 93C30 PDF BibTeX XML Cite \textit{J. E. Gayek}, J. Dyn. Syst. Meas. Control 111, No. 4, 626--630 (1989; Zbl 0701.93006) Full Text: DOI OpenURL
Kudryavtsev, D. L. Asymptotics of solutions of a linear second order differential equation with regular singular points. (English. Russian original) Zbl 0699.34056 Sov. Math., Dokl. 39, No. 1, 149-152 (1989); translation from Dokl. Akad. Nauk SSSR 304, No. 4, 796-799 (1989). Reviewer: J.Ohriska MSC: 34E05 PDF BibTeX XML Cite \textit{D. L. Kudryavtsev}, Sov. Math., Dokl. 39, No. 1, 149--152 (1989; Zbl 0699.34056); translation from Dokl. Akad. Nauk SSSR 304, No. 4, 796--799 (1989) OpenURL
Dang Dinh Hai Two point boundary value problem for differential equations with reflection of argument. (English) Zbl 0699.34017 J. Math. Anal. Appl. 144, No. 2, 313-321 (1989). Reviewer: D.Tila MSC: 34B10 PDF BibTeX XML Cite \textit{Dang Dinh Hai}, J. Math. Anal. Appl. 144, No. 2, 313--321 (1989; Zbl 0699.34017) Full Text: DOI OpenURL
Semerdzhieva, R. I. Finite-difference method of solving a class of hyperbolic equations with an order degeneration. (English. Russian original) Zbl 0698.65052 Differ. Equations 25, No. 10, 1235-1245 (1989); translation from Differ. Uravn. 25, No. 10, 1755-1766 (1989). MSC: 65M06 35L15 35L80 PDF BibTeX XML Cite \textit{R. I. Semerdzhieva}, Differ. Equations 25, No. 10, 1235--1245 (1989; Zbl 0698.65052); translation from Differ. Uravn. 25, No. 10, 1755--1766 (1989) OpenURL
Klaassen, Chris A. J. Efficient estimation in the Cox model for survival data. (English) Zbl 0698.62030 Asymptotic statistics, 4th Prague Symp., Prague/Czech. 1988, 313-319 (1989). MSC: 62F12 PDF BibTeX XML OpenURL
Karner, G. On the quantum Fermi accelerator and its relevance to “quantum chaos”. (English) Zbl 0698.35143 Lett. Math. Phys. 17, No. 4, 329-339 (1989). Reviewer: V.Komkov MSC: 35Q99 81Q10 35K10 PDF BibTeX XML Cite \textit{G. Karner}, Lett. Math. Phys. 17, No. 4, 329--339 (1989; Zbl 0698.35143) Full Text: DOI OpenURL
Hunt, G. W.; Bolt, H. M.; Thompson, J. M. T. Structural localization phenomena and the dynamical phase-space analogy. (English) Zbl 0697.73043 Proc. R. Soc. Lond., Ser. A 425, No. 1869, 245-267 (1989). MSC: 74G60 74B20 PDF BibTeX XML Cite \textit{G. W. Hunt} et al., Proc. R. Soc. Lond., Ser. A 425, No. 1869, 245--267 (1989; Zbl 0697.73043) Full Text: DOI OpenURL
Horgan, Cornelius O. Some remarks on axisymmetric solutions in finite elastostatics for compressible materials. (English) Zbl 0696.73026 Proc. R. Ir. Acad., Sect. A 89, No. 2, 185-193 (1989). MSC: 74B20 PDF BibTeX XML Cite \textit{C. O. Horgan}, Proc. R. Ir. Acad., Sect. A 89, No. 2, 185--193 (1989; Zbl 0696.73026) OpenURL
Smiley, Michael W. Breathers for the sine-Gordon equation. (English) Zbl 0696.35136 Nonlinear semigroups, partial differential equations and attractors, Proc. Symp., Washington/DC 1987, Lect. Notes Math. 1394, 211-217 (1989). Reviewer: V.Răsvan MSC: 35Q99 35L70 35B99 PDF BibTeX XML OpenURL
Sideris, Thomas C. Decay estimates for the three-dimensional inhomogeneous Klein-Gordon equation and applications. (English) Zbl 0696.35015 Commun. Partial Differ. Equations 14, No. 10, 1421-1455 (1989). Reviewer: V.Răsvan MSC: 35B40 35Q99 35L15 35B45 PDF BibTeX XML Cite \textit{T. C. Sideris}, Commun. Partial Differ. Equations 14, No. 10, 1421--1455 (1989; Zbl 0696.35015) Full Text: DOI OpenURL
Mustafin, M. A. On the Riesz basis of a sine system. (Russian) Zbl 0696.34013 Differ. Uravn. 25, No. 10, 1832-1833 (1989). Reviewer: N.Bozhinov MSC: 34B10 42C30 42C15 PDF BibTeX XML Cite \textit{M. A. Mustafin}, Differ. Uravn. 25, No. 10, 1832--1833 (1989; Zbl 0696.34013) OpenURL
Mel’nik, V. N.; Moskal’kov, M. N. On coupled electroelastic non-stationary oscillations of a piezoceramic cylinder with radial polarization. (Russian) Zbl 0695.73038 Model. Mekh. 3(20), No. 2, 124-133 (1989). MSC: 74F15 74S30 PDF BibTeX XML OpenURL
Kwapisz, Marian On the existence and uniqueness of integrable solutions for integral equations in several variables. (English) Zbl 0695.45007 Libertas Math. 9, 37-40 (1989). Reviewer: C.Corduneanu MSC: 45G10 35L70 PDF BibTeX XML Cite \textit{M. Kwapisz}, Libertas Math. 9, 37--40 (1989; Zbl 0695.45007) OpenURL
Zadorin, A. I. Numerical solution of a quasi-linear equation with a small parameter. (Russian) Zbl 0695.34009 Model. Mekh. 3(20), No. 2, 89-94 (1989). MSC: 65J99 34A34 PDF BibTeX XML OpenURL
Motai, Takahiro Existence of global strong solution for nonlinear Klein-Gordon equation. (English) Zbl 0694.35184 Funkc. Ekvacioj, Ser. Int. 32, No. 1, 125-144 (1989). Reviewer: T.Motai MSC: 35Q99 35L70 81Q05 PDF BibTeX XML Cite \textit{T. Motai}, Funkc. Ekvacioj, Ser. Int. 32, No. 1, 125--144 (1989; Zbl 0694.35184) OpenURL
Wong, James S. W. Oscillation theorems for second-order nonlinear differential equations. (English) Zbl 0694.34027 Proc. Am. Math. Soc. 106, No. 4, 1069-1077 (1989). Reviewer: F.Neuman MSC: 34C10 34C15 34A34 PDF BibTeX XML Cite \textit{J. S. W. Wong}, Proc. Am. Math. Soc. 106, No. 4, 1069--1077 (1989; Zbl 0694.34027) Full Text: DOI OpenURL
Zadorin, A. I. A difference scheme for a self-conjugate, singularly perturbed third boundary value problem. (Russian) Zbl 0694.34015 Model. Mekh. 3(30), No. 1, 77-82 (1989). MSC: 34B05 34E15 34D15 PDF BibTeX XML OpenURL
Hostler, Levere Foldy-Wouthuysen-type reduction of the second-order Dirac equation. (English) Zbl 0693.35140 J. Math. Phys. 30, No. 7, 1621-1630 (1989). MSC: 35Q99 81Q05 47F05 PDF BibTeX XML Cite \textit{L. Hostler}, J. Math. Phys. 30, No. 7, 1621--1630 (1989; Zbl 0693.35140) Full Text: DOI OpenURL
Kadelburg, Eh.; Martinović, M. The spectral function of a second order functional-differential operator. (Russian) Zbl 0693.34070 Differ. Uravn. 25, No. 11, 1882-1888 (1989). Reviewer: M.Tvrdy MSC: 34K10 34L99 PDF BibTeX XML Cite \textit{Eh. Kadelburg} and \textit{M. Martinović}, Differ. Uravn. 25, No. 11, 1882--1888 (1989; Zbl 0693.34070) OpenURL
Osipov, A. V.; Pliss, V. A. Relaxation oscillations in a Duffing system. (English. Russian original) Zbl 0693.34039 Differ. Equations 25, No. 3, 300-308 (1989); translation from Differ. Uravn. 25, No. 3, 435-446 (1989). Reviewer: S.Manolov MSC: 34C15 PDF BibTeX XML Cite \textit{A. V. Osipov} and \textit{V. A. Pliss}, Differ. Equations 25, No. 3, 300--308 (1989; Zbl 0693.34039); translation from Differ. Uravn. 25, No. 3, 435--446 (1989) OpenURL
Volkov, V. E. On the boundedness of the number of orthogonal solutions of the equation \(-u''+q(x)u=\lambda u\). (Russian) Zbl 0693.34037 Differ. Uravn. 25, No. 11, 1862-1866 (1989). Reviewer: D.Bobrowski MSC: 34C11 PDF BibTeX XML Cite \textit{V. E. Volkov}, Differ. Uravn. 25, No. 11, 1862--1866 (1989; Zbl 0693.34037) OpenURL
Tsapenko, N. E. New formulae for approximate solution of one-dimensional wave equation. (Russian) Zbl 0693.34008 Differ. Uravn. 25, No. 11, 1941-1946 (1989). Reviewer: L.Janos MSC: 34A45 34C20 PDF BibTeX XML Cite \textit{N. E. Tsapenko}, Differ. Uravn. 25, No. 11, 1941--1946 (1989; Zbl 0693.34008) OpenURL
Sofronov, I. L. A numerical iteration method for solving regular elliptic problems. (Russian) Zbl 0692.65047 Zh. Vychisl. Mat. Mat. Fiz. 29, No. 6, 923-934 (1989). Reviewer: E.D’yakonov MSC: 65N22 65F10 35J25 PDF BibTeX XML Cite \textit{I. L. Sofronov}, Zh. Vychisl. Mat. Mat. Fiz. 29, No. 6, 923--934 (1989; Zbl 0692.65047) OpenURL
Orlovskij, D. G. On an inverse problem for a second order differential equation in Banach space. (Russian) Zbl 0692.34064 Differ. Uravn. 25, No. 6, 1000-1009 (1989). Reviewer: H.O.Fattorini MSC: 34G10 34A55 35Q99 93B05 PDF BibTeX XML Cite \textit{D. G. Orlovskij}, Differ. Uravn. 25, No. 6, 1000--1009 (1989; Zbl 0692.34064) OpenURL
Grace, S. R.; Lalli, B. S. Oscillation theorems for nonlinear second order differential equations with a damping term. (English) Zbl 0692.34030 Commentat. Math. Univ. Carol. 30, No. 4, 691-697 (1989). MSC: 34C10 34A34 PDF BibTeX XML Cite \textit{S. R. Grace} and \textit{B. S. Lalli}, Commentat. Math. Univ. Carol. 30, No. 4, 691--697 (1989; Zbl 0692.34030) Full Text: EuDML OpenURL
Muresan, Marian A note on the non-existence of the limit cycles. (English) Zbl 0692.34024 Prepr., “Babeș-Bolyai” Univ., Fac. Math. Phys., Res. Semin. 1989, No. 7, 53-56 (1989). Reviewer: M.Muresan MSC: 34C05 34C25 PDF BibTeX XML Cite \textit{M. Muresan}, Prepr., ``Babeș-Bolyai'' Univ., Fac. Math. Phys., Res. Semin. 1989, No. 7, 53--56 (1989; Zbl 0692.34024) OpenURL
Anikonov, Yu. E.; Belov, Yu. Ya. On unique solvability of an inverse problem for a parabolic equation. (English. Russian original) Zbl 0691.45013 Sov. Math., Dokl. 39, No. 3, 601-605 (1989); translation from Dokl. Akad. Nauk SSSR 306, No. 6, 1289-1293 (1989). Reviewer: S.Aizicovici MSC: 45K05 35R30 35K10 PDF BibTeX XML Cite \textit{Yu. E. Anikonov} and \textit{Yu. Ya. Belov}, Sov. Math., Dokl. 39, No. 3, 601--605 (1989; Zbl 0691.45013); translation from Dokl. Akad. Nauk SSSR 306, No. 6, 1289--1293 (1989) OpenURL
Kato, Keiichi Interaction of singularities of solutions to semilinear wave equation at the boundary. (English) Zbl 0691.35061 Sci. Pap. Coll. Arts Sci., Univ. Tokyo 38, No. 2, 131-139 (1989). Reviewer: K.Kato MSC: 35L70 35B99 35L67 PDF BibTeX XML Cite \textit{K. Kato}, Sci. Pap. Coll. Arts Sci., Univ. Tokyo 38, No. 2, 131--139 (1989; Zbl 0691.35061) OpenURL
Zhang, Weinian Bifurcation of homoclinics in a nonlinear oscillation. (English) Zbl 0691.34031 Acta Math. Sin., New Ser. 5, No. 2, 170-184 (1989). MSC: 34C15 34C25 PDF BibTeX XML Cite \textit{W. Zhang}, Acta Math. Sin., New Ser. 5, No. 2, 170--184 (1989; Zbl 0691.34031) Full Text: DOI OpenURL
Wong, James S. W. A sublinear oscillation theorem. (English) Zbl 0691.34028 J. Math. Anal. Appl. 139, No. 2, 408-412 (1989). Reviewer: Zhujun Jing MSC: 34C10 34C15 PDF BibTeX XML Cite \textit{J. S. W. Wong}, J. Math. Anal. Appl. 139, No. 2, 408--412 (1989; Zbl 0691.34028) Full Text: DOI OpenURL
Dovletov, D. M. On a nonlocal boundary value problem of first kind in differential and difference treatments. (Russian) Zbl 0691.34012 Differ. Uravn. 25, No. 8, 1297-1307 (1989). Reviewer: M.Möller MSC: 34B10 PDF BibTeX XML Cite \textit{D. M. Dovletov}, Differ. Uravn. 25, No. 8, 1297--1307 (1989; Zbl 0691.34012) OpenURL
Holmåker, Kjell Optimization problems for the differential equation \(y''-qy=0\). II. (English) Zbl 0689.49023 J. Math. Anal. Appl. 144, No. 2, 404-424 (1989). Reviewer: K.Holmåker MSC: 49K15 34H05 PDF BibTeX XML Cite \textit{K. Holmåker}, J. Math. Anal. Appl. 144, No. 2, 404--424 (1989; Zbl 0689.49023) Full Text: DOI OpenURL
Goebel, M.; Raitums, Uldis E. Extension of optimal control problems. (English) Zbl 0689.49004 Math. Nachr. 143, 291-302 (1989). Reviewer: M. Goebel MSC: 49J15 PDF BibTeX XML Cite \textit{M. Goebel} and \textit{U. E. Raitums}, Math. Nachr. 143, 291--302 (1989; Zbl 0689.49004) Full Text: DOI OpenURL
Taniuti, T. Reductive perturbation method for quasi-one dimensional nonlinear wave propagation. (English) Zbl 0689.35084 Nonlinear wave motion, Pitman Monogr. Surv. Pure Appl. Math. 43, 196-204 (1989). Reviewer: Doru Ştefănescu MSC: 35Q99 35L70 PDF BibTeX XML OpenURL
Shafarevich, A. I. Quasiclassical scattering of wave packets on a narrow band in which the potential rapidly changes. (English. Russian original) Zbl 0689.35080 Math. Notes 45, No. 1-2, 72-77 (1989); translation from Mat. Zametki 45, No. 1, 106-114 (1989). Reviewer: D.R.Yafaev MSC: 35Q99 35B40 35K15 35P25 PDF BibTeX XML Cite \textit{A. I. Shafarevich}, Math. Notes 45, No. 1--2, 72--77 (1989; Zbl 0689.35080); translation from Mat. Zametki 45, No. 1, 106--114 (1989) Full Text: DOI OpenURL
Bhimaraddi, Alavandi Nonlinear vibrations of in-plane loaded, imperfect, orthotropic plates using the perturbation technique. (English) Zbl 0688.73023 Int. J. Solids Struct. 25, No. 5, 563-575 (1989). MSC: 74H45 74K20 74B20 74E10 PDF BibTeX XML Cite \textit{A. Bhimaraddi}, Int. J. Solids Struct. 25, No. 5, 563--575 (1989; Zbl 0688.73023) Full Text: DOI OpenURL
Doppel, K.; Schomburg, B. A Robin-Neumann problem in bounded domains with splitting boundary. (English) Zbl 0688.35019 Numer. Funct. Anal. Optimization 10, No. 1-2, 65-76 (1989). Reviewer: S.Zanfir MSC: 35J05 35J25 35P30 35Dxx PDF BibTeX XML Cite \textit{K. Doppel} and \textit{B. Schomburg}, Numer. Funct. Anal. Optim. 10, No. 1--2, 65--76 (1989; Zbl 0688.35019) Full Text: DOI OpenURL