Gurevich, A. P. On a boundary value problem with a weight. (Russian) Zbl 0621.34014 Differ. Uravn. Teor. Funkts. 2, 123-132 (1980). MSC: 34L99 PDF BibTeX XML Cite \textit{A. P. Gurevich}, Differ. Uravn. Teor. Funkts. 2, 123--132 (1980; Zbl 0621.34014) OpenURL
Jiang, Furu On the boundary value problems for a class of ordinary differential equations with turning points. (English) Zbl 0618.34051 Appl. Math. Mech., Engl. Ed. 1, 211-223 (1980). Reviewer: N.L.Maria MSC: 34E20 PDF BibTeX XML Cite \textit{F. Jiang}, Appl. Math. Mech., Engl. Ed. 1, 211--223 (1980; Zbl 0618.34051) Full Text: DOI OpenURL
Ahmad, Shair; Salazar, Jorge On existence of periodic solutions for nonlinearly perturbed conservative systems. (English) Zbl 0599.34048 Differential equations, Proc. 8th Fall Conf., Okla. State Univ. 1979, 103-114 (1980). MSC: 34C25 34A34 PDF BibTeX XML OpenURL
Pagliari, Carmen Searching a fifth order method for the numerical integration of a second order ordinary differential equation. (Italian) Zbl 0581.65056 Rend. Semin. Fac. Sci. Univ. Cagliari 50, 87-96 (1980). MSC: 65L05 34A34 65L20 PDF BibTeX XML Cite \textit{C. Pagliari}, Rend. Semin. Fac. Sci. Univ. Cagliari 50, 87--96 (1980; Zbl 0581.65056) OpenURL
Chen, Shuxing On the solvability of symmetric positive systems in a domain with non- exceptional corners. (Chinese. English summary) Zbl 0577.35007 Fudan J., Nat. Sci. 19, 249-257 (1980). MSC: 35F15 35A05 35M99 PDF BibTeX XML Cite \textit{S. Chen}, Fudan J., Nat. Sci. 19, 249--257 (1980; Zbl 0577.35007) OpenURL
Taira, K. Boundary value problems for the second order elliptic differential operators. (Japanese) Zbl 0565.35001 Sophia Kokyuroku in Mathematics, 6. Tokyo: Sophia University, Department of Mathematics. V, 101 p. (1980). Reviewer: A.Tsutsumi MSC: 35-02 35J25 35S05 35A05 35J20 45B05 PDF BibTeX XML OpenURL
Eberhardt, O. The coherent potential approximation in random field theorems. (English) Zbl 0555.73010 Continuum models of discrete systems, Proc. 3rd int. Symp., Freudenstadt/Ger. 1979, SM Stud. Ser. 15, 415-422 (1980). MSC: 74A40 35R60 74F15 PDF BibTeX XML OpenURL
Miklyukov, V. M. Capacity and a generalized maximum principle for quasilinear elliptic equations. (English. Russian original) Zbl 0553.35026 Sov. Math., Dokl. 21, 320-322 (1980); translation from Dokl. Akad. Nauk SSSR 250, 1318-1320 (1980). MSC: 35J60 35B50 53A10 PDF BibTeX XML Cite \textit{V. M. Miklyukov}, Sov. Math., Dokl. 21, 320--322 (1980; Zbl 0553.35026); translation from Dokl. Akad. Nauk SSSR 250, 1318--1320 (1980) OpenURL
Mikhajlov, V. P. Equations aux dérivées partielles. Traduit du russe par Irina Petrova. (French) Zbl 0549.35001 Moscou: Editions ”Mir”. 390 p. (1980). MSC: 35-01 35J25 35K20 35L20 35A05 35B45 35C05 35D05 35K15 35L10 35J05 35K05 35L05 PDF BibTeX XML OpenURL
Yudina, A. S. Regularized asymptotic solutions to equations with a regular singular point. (Russian) Zbl 0546.34048 Tr. Mosk. Ehnerg. Inst. 499, 147-151 (1980). MSC: 34E05 34C05 PDF BibTeX XML OpenURL
Li, Hongxiang Some new integrable types of ordinary differential equations. (Chinese) Zbl 0525.34002 Math. Pract. Theory 1980, No. 1, 46-51 (1980). MSC: 34A05 PDF BibTeX XML Cite \textit{H. Li}, Math. Pract. Theory 1980, No. 1, 46--51 (1980; Zbl 0525.34002) OpenURL
Oganesyan, G. R. Initial problem with specified Wronskians. (English) Zbl 0512.35052 Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 15, No. 4, 43-99 (1980). MSC: 35L30 35A10 35L15 35A20 35K05 PDF BibTeX XML Cite \textit{G. R. Oganesyan}, Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 15, No. 4, 43--99 (1980; Zbl 0512.35052) OpenURL
Baryshnikov, A. A. The improved WKB-approximation in the neighbourhood of the turning point. (Russian) Zbl 0511.34041 Asymptotic methods in system theory, Collect. Artic., Irkutsk 1980, 203-207 (1980). MSC: 34E20 34A45 PDF BibTeX XML OpenURL
Shopolov, N. N. On a boundary value problem for a mixed-parabolic equation with nonlocal initial conditions. II. (Bulgarian) Zbl 0503.35041 God. Vissh. Uchebn. Zaved., Prilozhna Mat. 15(1979), No. 2, 147-158 (1980). MSC: 35K15 35M99 35A05 PDF BibTeX XML Cite \textit{N. N. Shopolov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 15, No. 2, 147--158 (1980; Zbl 0503.35041) OpenURL
Shopolov, N. N. On a boundary value problem for a mixed-parabolic equation with non-local initial conditions. I. (Bulgarian) Zbl 0503.35040 God. Vissh. Uchebn. Zaved., Prilozhna Mat. 15(1979), No. 2, 137-146 (1980). MSC: 35K15 35M99 35A05 PDF BibTeX XML Cite \textit{N. N. Shopolov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 15, No. 2, 137--146 (1980; Zbl 0503.35040) OpenURL
Kipriyanova, N. I. Asymptotic formulas for the eigenfunctions of a singular second order differential operator. (Russian) Zbl 0499.35085 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 93-97 (1980). MSC: 35P20 35J05 PDF BibTeX XML OpenURL
Ermakov, V. I. Dirichlet problem for a class of elliptic systems in the plane. (Russian) Zbl 0499.35044 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 68-71 (1980). MSC: 35J55 35F05 35A05 PDF BibTeX XML OpenURL
Bitsadze, A. V. Equations of mathematical physics. Transl. from the Russian by V. M. Volosov and I. G. Volosova. (English) Zbl 0499.35002 Moskva: ”Mir”. 318 p. (1980). MSC: 35-01 35J05 35K05 35L05 30-01 35A15 35A22 35A35 35A25 PDF BibTeX XML OpenURL
Polichka, N. P. Behaviour of solutions of a problem with a shift for the Lavrent’ev- Bitsadze equation in the case of variation of the domain. (Russian) Zbl 0498.35060 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 155-159 (1980). MSC: 35M99 35B45 35B30 35J25 35L20 PDF BibTeX XML OpenURL
Satimov, N. Yu. On the complete investigation of the problem about ”isochronous rockets”. (Russian) Zbl 0497.90095 Dokl. Akad. Nauk UzSSR 1980, No. 9, 6-8 (1980). MSC: 91A24 91A23 PDF BibTeX XML Cite \textit{N. Yu. Satimov}, Dokl. Akad. Nauk UzSSR 1980, No. 9, 6--8 (1980; Zbl 0497.90095) OpenURL
Terziyan, S. A.; Dochev, D. T. Existence, uniqueness, and boundedness of the solutions of a mixed problem for parabolic equations with time delay. (Russian) Zbl 0497.35081 Izv. Akad. Nauk Arm. SSR, Mat. 15, 433-442 (1980). MSC: 35R10 35K20 35D05 35A35 35B35 35B10 PDF BibTeX XML Cite \textit{S. A. Terziyan} and \textit{D. T. Dochev}, Izv. Akad. Nauk Arm. SSR, Mat. 15, 433--442 (1980; Zbl 0497.35081) OpenURL
Alymkulov, K. The perturbation of a second order differential equation with the regular singular point. (Russian) Zbl 0497.34042 Investigations on integro-differential equations, 13, Collect. Artic. Frunze 1980, 253-255 (1980). MSC: 34E05 34C05 34E10 34E15 PDF BibTeX XML OpenURL
Egorov, I. I. On a nonlinear degenerate first order operator equation. (Russian) Zbl 0492.34050 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 64-68 (1980). MSC: 34G20 47J05 58D25 34B15 35K60 PDF BibTeX XML OpenURL
Pechenkina, A. A. The solution of the periodic problem for a second order ordinary differential equation with a small parameter in the higher derivative. (Russian) Zbl 0489.34012 Differential equations with small parameter, Collect. Artic., Sverdlovsk 1980, 111-117 (1980). MSC: 34B05 34C25 PDF BibTeX XML OpenURL
Zaplitnaya, A. T. On differential equations of the second order with retarded argument in a Banach space. (Russian) Zbl 0487.34087 Qualitative study on functional-differential equations, Collect. sci. Works, Kiev 1980, 50-55 (1980). MSC: 34K30 34A12 34K05 PDF BibTeX XML OpenURL
Guerkoek, A.; Ertepinar, A. Large amplitude radial oscillations of thick, inhomogeneous, hyperelastic spherical shells. (English) Zbl 0486.73090 J. Pure Appl. Sci. 13, 225-240 (1980). MSC: 74K25 74H45 74B20 74K15 PDF BibTeX XML Cite \textit{A. Guerkoek} and \textit{A. Ertepinar}, J. Pure Appl. Sci., Ankara 13, 225--240 (1980; Zbl 0486.73090) OpenURL
Kuptsov, L. P. On parabolic means. (English. Russian original) Zbl 0484.35051 Sov. Math., Dokl. 21, 741-746 (1980); translation from Dokl. Akad. Nauk SSSR 252, 296-301 (1980). MSC: 35K65 31B10 35C15 35K15 35K05 PDF BibTeX XML Cite \textit{L. P. Kuptsov}, Sov. Math., Dokl. 21, 741--746 (1980; Zbl 0484.35051); translation from Dokl. Akad. Nauk SSSR 252, 296--301 (1980) OpenURL
Hiris, Viorel; Megan, Mihail Hyperstability for linear parabolic systems. (English) Zbl 0478.49021 An. Stiint. Univ. Al. I. Cuza Iasi, N. Ser., Sect. Ia 26, 337-344 (1980). MSC: 49K27 49K20 93D10 35K10 PDF BibTeX XML OpenURL
Sotnichenko, N. A.; Feshchenko, S. F. The asymptotic representation of the solution for partial differential equations with time lag. (Russian) Zbl 0475.35076 Analytical methods in the study of nonlinear oscillations, Collect. sci. Works, Kiev 1980, 155-160 (1980). MSC: 35R10 35C20 35G10 35K25 35L10 PDF BibTeX XML OpenURL
Stafney, James D. A spectral mapping theorem for generating operators in second-order linear differential equations. (English) Zbl 0474.47021 J. Math. Anal. Appl. 77, 433-450 (1980). MSC: 47E05 47A60 34G10 PDF BibTeX XML Cite \textit{J. D. Stafney}, J. Math. Anal. Appl. 77, 433--450 (1980; Zbl 0474.47021) Full Text: DOI OpenURL
Rudyak, V. Ya.; Smagulov, Sh. On a hyperbolic modification of the Burgers equation. (English. Russian original) Zbl 0473.35067 Sov. Math., Dokl. 22, 758-761 (1980); translation from Dokl. Akad. Nauk SSSR 255, 801-804 (1980). MSC: 35Q99 35B25 35B40 35L15 35L20 PDF BibTeX XML Cite \textit{V. Ya. Rudyak} and \textit{Sh. Smagulov}, Sov. Math., Dokl. 22, 758--761 (1980; Zbl 0473.35067); translation from Dokl. Akad. Nauk SSSR 255, 801--804 (1980) OpenURL
Kopell, Nancy Time periodic but spatially irregular solutions to a model reaction- diffusion equation. (English) Zbl 0473.35011 Nonlinear dynamics, int. Conf., New York 1979, Ann. N.Y. Acad. Sci. 357, 397-409 (1980). MSC: 35B10 35K10 34C10 35B05 92Exx PDF BibTeX XML OpenURL
Medeiros, L. A. Non linear hyperbolic-parabolic partial differential equations. (English) Zbl 0469.35067 Funkc. Ekvacioj, Ser. Int. 23, 151-158 (1980). MSC: 35M99 35L15 35K55 35L70 PDF BibTeX XML Cite \textit{L. A. Medeiros}, Funkc. Ekvacioj, Ser. Int. 23, 151--158 (1980; Zbl 0469.35067) OpenURL
Müller-Pfeiffer, Erich; Staude, J. Integral theorems for eigenfunctions of second-order elliptic differential operators. (English) Zbl 0469.35043 Math. Nachr. 98, 37-47 (1980). MSC: 35J25 35J10 35P25 35P99 47A40 PDF BibTeX XML Cite \textit{E. Müller-Pfeiffer} and \textit{J. Staude}, Math. Nachr. 98, 37--47 (1980; Zbl 0469.35043) Full Text: DOI OpenURL
Bondarchuk, V. S. On the connection between spectral and oscillatory properties of the matrix Jacobi problem. (Russian) Zbl 0468.70021 Dynamics and stability of mechanical systems, Collect. sci. Works, Kiev 1980, 156-161 (1980). MSC: 70H05 70H25 70H03 49S05 PDF BibTeX XML OpenURL
Kuz’menko, Yu. T. On the Martin boundary for elliptic operators in \(R^ n\). (English) Zbl 0468.35035 Sov. Math. 24, No. 8, 44-51 (1980). MSC: 35J05 31B05 31B35 35J99 PDF BibTeX XML Cite \textit{Yu. T. Kuz'menko}, Sov. Math. 24, No. 8, 44--51 (1980; Zbl 0468.35035) OpenURL
Radzhabov, N. Integral representations and boundary value problems for some differential equations with singular line or singular surfaces. Textbook for a special course. Part 1. (Integral’nye predstavleniya i granichnye zadachi dlya nekotorykh differentsial’nykh uravnenij s singulyarnoj liniej ili singulyarnymi poverkhnostyami. Uchebnoe posobie po spetskursu. Chast’ 1). (Russian) Zbl 0468.35019 Ministerstvo Vysshego i Srednego Spetsial’nogo Obrazovaniya Tadzhikskoj SSR. Dushanbe: Tadzhikskij Gosudarstvennyj Universitet im. V. I. Lenina. 127 p. R. 0.75 (1980). MSC: 35C15 35-02 35Q05 35J05 35Q15 35K20 35L20 PDF BibTeX XML OpenURL
Knerr, Barry F. Parabolic interior Schauder estimates by the maximum principle. (English) Zbl 0468.35014 Arch. Ration. Mech. Anal. 75, 51-58 (1980). MSC: 35B50 35K20 35R45 PDF BibTeX XML Cite \textit{B. F. Knerr}, Arch. Ration. Mech. Anal. 75, 51--58 (1980; Zbl 0468.35014) Full Text: DOI OpenURL
Akopyan, G. S. Homogeneous Dirichlet problem for a bundle of differential operators in a space of vector-valued functions. (English) Zbl 0467.35081 Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 15, No. 6, 66-75 (1980). MSC: 35R20 76U05 35L20 35P99 47F05 PDF BibTeX XML Cite \textit{G. S. Akopyan}, Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 15, No. 6, 66--75 (1980; Zbl 0467.35081) OpenURL
Nigul, U. The method of successive integration of the linear inhomogeneous wave equations in the theory of transient wave propagation in non-linear hereditary elastic media. (English) Zbl 0466.73025 Int. J. Non-Linear Mech. 15, 469-483 (1980). MSC: 74J99 74B20 65D30 74M20 45K05 PDF BibTeX XML Cite \textit{U. Nigul}, Int. J. Non-Linear Mech. 15, 469--483 (1980; Zbl 0466.73025) Full Text: DOI OpenURL
Mitropol’skij, Yu. A.; Krivosheya, S. A. Asymptotische Lösungen einer gewissen Klasse von Randwertproblemen. (Russian) Zbl 0466.35053 Ukr. Mat. Zh. 32, 846-853 (1980). MSC: 35L70 35G30 35L20 35B40 PDF BibTeX XML Cite \textit{Yu. A. Mitropol'skij} and \textit{S. A. Krivosheya}, Ukr. Mat. Zh. 32, 846--853 (1980; Zbl 0466.35053) OpenURL
Devyatko, V. I.; Panchishin, V. I.; Rudchenko, P. A. On the solution of plane boundary value problems of the heat conductivity on combined mathematical models. (Russian) Zbl 0465.35044 Mathematical methods of the study of physical fields, Collect. sci. Works, Kiev 1980, 136-141 (1980). MSC: 35K20 35K05 65M99 65N99 35K55 PDF BibTeX XML OpenURL
Hudson, J. A. Overall properties of a cracked solid. (English) Zbl 0463.73095 Math. Proc. Camb. Philos. Soc. 88, 371-384 (1980). MSC: 74R05 74E05 47A40 45K05 PDF BibTeX XML Cite \textit{J. A. Hudson}, Math. Proc. Camb. Philos. Soc. 88, 371--384 (1980; Zbl 0463.73095) Full Text: DOI OpenURL
Gikhman, I. I. On a nonlinear stochastic boundary value problem for an equation of hyperbolic type. (Russian) Zbl 0463.60053 Boundary value problems for differential equations, Collect. sci. Works, Kiev 1980, 53-60 (1980). MSC: 60H15 35R60 35L20 PDF BibTeX XML OpenURL
Le, Suan Kan Eine Konstruktion asymptotischer quasiperiodischer Lösungen für ein nichtlineares System von Gleichungen zweiter Ordnung. (Russian) Zbl 0462.34027 Izv. Vyssh. Uchebn. Zaved., Mat. 1980, No. 10(221), 78-80 (1980). MSC: 34C27 34C15 34E05 34A34 PDF BibTeX XML Cite \textit{S. K. Le}, Izv. Vyssh. Uchebn. Zaved., Mat. 1980, No. 10(221), 78--80 (1980; Zbl 0462.34027) OpenURL
Bahri, Abbas Résolution generique d’une équation semi-linéaire. (French) Zbl 0461.35037 C. R. Acad. Sci., Paris, Sér. A 291, 251-254 (1980). MSC: 35J65 35J20 35A05 49K20 PDF BibTeX XML Cite \textit{A. Bahri}, C. R. Acad. Sci., Paris, Sér. A 291, 251--254 (1980; Zbl 0461.35037) OpenURL
Wallner, Herbert Riemann-Funktionen als Lösungen partieller Differentialgleichungssysteme. (German) Zbl 0461.35018 Ber. Math.-Stat. Sekt. Forschungszent. Graz 136, 28 S. (1980). MSC: 35C15 35C99 35L15 PDF BibTeX XML OpenURL
Salat, A.; Tataronis, J. Stochasticity and order in a linear quasiperiodic differential equation. (English) Zbl 0459.65063 IPP Ber., Ser. 6, 204, 13 p. (1980). MSC: 65L10 34B30 PDF BibTeX XML OpenURL
Gaponenko, Yu. L. Method of contracting compact sets for the solution of nonlinear differential equations. (English. Russian original) Zbl 0459.65054 Mosc. Univ. Comput. Math. Cybern. 1980, No. 4, 8-13 (1980); translation from Vestn. Mosk. Univ., Ser. XV 1980, No. 4, 8-13 (1980). MSC: 65L05 PDF BibTeX XML Cite \textit{Yu. L. Gaponenko}, Mosc. Univ. Comput. Math. Cybern. 1980, No. 4, 8--13 (1980; Zbl 0459.65054); translation from Vestn. Mosk. Univ., Ser. XV 1980, No. 4, 8--13 (1980) OpenURL
Orochko, Yu. B. Smooth approximation of selfadjoint differential operators of divergence form with bounded measurable coefficients. (English) Zbl 0459.47044 Math. USSR, Sb. 37, 389-401 (1980). MSC: 47F05 35R05 35J15 35A35 35P05 35J10 47A60 47B25 41A35 47A10 PDF BibTeX XML Cite \textit{Yu. B. Orochko}, Math. USSR, Sb. 37, 389--401 (1980; Zbl 0459.47044) Full Text: DOI OpenURL
Karimov, A. U.; Koltunov, S. A.; Pukhareva, N. V. Eine Verallgemeinerung der Poincareschen Methode auf gewisse Klassen von Integro-Differentialgleichungen. (Russian) Zbl 0459.45009 Dokl. Akad. Nauk UzSSR 1980, No. 4, 10-14 (1980). MSC: 45J05 45L05 PDF BibTeX XML Cite \textit{A. U. Karimov} et al., Dokl. Akad. Nauk UzSSR 1980, No. 4, 10--14 (1980; Zbl 0459.45009) OpenURL
Redekopp, Larry G. Similarity solutions of some two-space-dimensional nonlinear wave evolution equations. (English) Zbl 0459.35077 Stud. Appl. Math. 63, 185-207 (1980). MSC: 35Q99 35K55 35L70 PDF BibTeX XML Cite \textit{L. G. Redekopp}, Stud. Appl. Math. 63, 185--207 (1980; Zbl 0459.35077) Full Text: DOI OpenURL
Yamagata, Hideo On restricted Bäcklund transformations for some quasilinear hyperbolic equations in 3+1 dimensions. (English) Zbl 0459.35075 Math. Jap. 25, 643-653 (1980). MSC: 35Q99 35A22 35C05 35L70 76B25 PDF BibTeX XML Cite \textit{H. Yamagata}, Math. Japon. 25, 643--653 (1980; Zbl 0459.35075) OpenURL
Mamedov, I. T. On the behavior of the solutions of degenerating quasi-linear parabolic equations of second order. (Russian) Zbl 0459.34015 Dokl., Akad. Nauk Az. SSR 36, No. 11, 3-6 (1980). MSC: 34C05 34A34 PDF BibTeX XML Cite \textit{I. T. Mamedov}, Dokl., Akad. Nauk Az. SSR 36, No. 11, 3--6 (1980; Zbl 0459.34015) OpenURL
Burchuladze, T. V. Mathematical theory of boundary value problems of thermodiffusion in a deforming elastic body. (Russian) Zbl 0458.73001 Tr. Tbilis. Mat. Inst. Razmadze 65, 5-23 (1980). MSC: 74A15 44A10 35K05 35J25 45K05 74F05 74G30 74H25 PDF BibTeX XML Cite \textit{T. V. Burchuladze}, Proc. A. Razmadze Math. Inst. 65, 5--23 (1980; Zbl 0458.73001) OpenURL
Aliev, R. M.; Aliev, G. F. On a certain approximative solution of boundary value problems for ordinary differential equations with deviating argument. (Russian) Zbl 0458.34039 Izv. Akad. Nauk Az. SSR, Ser. Fiz.- Tekh. Mat. Nauk 1980, No. 4, 14-20 (1980). MSC: 34K10 34K99 34B99 34A45 PDF BibTeX XML Cite \textit{R. M. Aliev} and \textit{G. F. Aliev}, Izv. Akad. Nauk Az. SSR, Ser. Fiz.-Tekh. Mat. Nauk 1980, No. 4, 14--20 (1980; Zbl 0458.34039) OpenURL
Khrychev, D. A. A homogeneous statistical solution of a nonlinear hyperbolic equation. (English) Zbl 0457.35061 Mosc. Univ. Math. Bull. 35, No. 2, 23-28 (1980). MSC: 35L70 35R60 PDF BibTeX XML Cite \textit{D. A. Khrychev}, Mosc. Univ. Math. Bull. 35, No. 2, 23--28 (1980; Zbl 0457.35061) OpenURL
Semerdzhierva, R. I. On a certain boundary value problem for a degenerating hyperbolic equation. (Russian) Zbl 0456.35063 C. R. Acad. Bulg. Sci. 33, 1321-1324 (1980). MSC: 35M99 35L20 35L80 PDF BibTeX XML Cite \textit{R. I. Semerdzhierva}, C. R. Acad. Bulg. Sci. 33, 1321--1324 (1980; Zbl 0456.35063) OpenURL
Glushko, V. P.; Smelyanskij, O. M. Coercive solvability of a boundary value problem for a complete degenerate second order differential equation in Hilbert space. (English. Russian original) Zbl 0456.35037 Transl., Ser. 2, Am. Math. Soc. 115, 175-185 (1980); translation from Mathematical programming and related questions. Proc. Seventh Winter Sch., Drogobych, 1974: Theory Oper. Linear Spaces, Cent. Ehkon.-Mat. Inst. Akad. Nauk SSSR, Mosc., 168-184 (1976). MSC: 35J70 35B45 46E35 PDF BibTeX XML Cite \textit{V. P. Glushko} and \textit{O. M. Smelyanskij}, Transl., Ser. 2, Am. Math. Soc. 115, 175--185 (1980; Zbl 0456.35037); translation from Mathematical programming and related questions. Proc. Seventh Winter Sch., Drogobych, 1974: Theory Oper. Linear Spaces, Cent. Ehkon.-Mat. Inst. Akad. Nauk SSSR, Mosc., 168--184 (1976) Full Text: DOI OpenURL
Favini, Angelo; Venni, Alberto Un problema ai limiti per un’equazione differenziale astratta del secondo ordine, con coefficienti operatoriali variabili. (Italian) Zbl 0456.34017 Rend. Mat., VI. Ser. 13, 283-298 (1980). MSC: 34B05 34B27 34A30 PDF BibTeX XML Cite \textit{A. Favini} and \textit{A. Venni}, Rend. Mat., VI. Ser. 13, 283--298 (1980; Zbl 0456.34017) OpenURL
Triebel, Hans Höhere Analysis. 2., verb. Aufl. Lizenzausg. (German) Zbl 0455.47035 Thun, Frankfurt am Main: Verlag Harri Deutsch. 704 S., 42 Abb. DM 29.80 (1980). MSC: 47E05 46B10 46B03 46E35 46C05 46F05 46F10 46F12 47-02 81Q10 47A10 47A55 47A53 47B25 47B06 47F05 34L99 35P05 35J25 35K20 35L20 33C10 33C45 PDF BibTeX XML OpenURL
Moss, William F. Fundamental solutions of degenerate or singular elliptic equations. (English) Zbl 0455.35055 J. Math. Anal. Appl. 78, 574-587 (1980). MSC: 35J25 35J70 35A08 35B50 35J10 35Q99 PDF BibTeX XML Cite \textit{W. F. Moss}, J. Math. Anal. Appl. 78, 574--587 (1980; Zbl 0455.35055) Full Text: DOI OpenURL
Moshinskij, A. V. Lösung eines Randwertproblems über die Dispersion einer Welle des Typs H//\(1_ 0\) an einer zylindrischen Inhomogenität eines elliptischen Profils in einem rechteckigen Wellenleiter. (Russian) Zbl 0455.35044 Differ. Uravn. 16, 2190-2204 (1980). MSC: 35J05 35Q99 35J25 78A40 PDF BibTeX XML Cite \textit{A. V. Moshinskij}, Differ. Uravn. 16, 2190--2204 (1980; Zbl 0455.35044) OpenURL
Olah, Rudol Asymptotic properties of solutions of delay-differential equations. (Slovak) Zbl 0455.34055 Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 2, 51-59 (1980). MSC: 34K25 34C05 34A30 34A34 34K99 PDF BibTeX XML Cite \textit{R. Olah}, Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 2, 51--59 (1980; Zbl 0455.34055) OpenURL
Felippa, C. A.; Park, K. C. Staggered transient analysis procedures for coupled mechanical systems: Formulation. (English) Zbl 0453.73091 Comput. Methods Appl. Mech. Eng. 24, 61-111 (1980). MSC: 74S30 PDF BibTeX XML Cite \textit{C. A. Felippa} and \textit{K. C. Park}, Comput. Methods Appl. Mech. Eng. 24, 61--111 (1980; Zbl 0453.73091) Full Text: DOI OpenURL
Fučík, Svatopluk Solvability of nonlinear equations and boundary value problems. (English) Zbl 0453.47035 Mathematics and its Applications. 4. Dordrecht-Boston-London: D. Reidel Publishing Company. x, 390 p. Dfl. 60.00; $ 29.95 (1980). Reviewer: Pavel Drábek (Plzeň) MSC: 47H05 47-02 34-02 35-02 34B15 34L99 34G20 35D30 35J65 35K05 35K60 35L70 35L99 47E05 47F05 47H07 47H10 47J10 47J05 47H99 PDF BibTeX XML OpenURL
Rasulov, T. M. Mixed plane problems for parabolic systems in regions with boundaries depending on the time. (English) Zbl 0453.35089 Differ. Equations 15, 1560-1566 (1980). MSC: 35R35 58J35 58J32 58J99 35K15 35K20 PDF BibTeX XML Cite \textit{T. M. Rasulov}, Differ. Equations 15, 1560--1566 (1980; Zbl 0453.35089) OpenURL
Pukhnachev, V. V. Occurrence of a singularity in the solution of a Stefan problem. (English) Zbl 0453.35041 Differ. Equations 16, 313-318 (1980). MSC: 35K20 35R35 35K05 35Q99 PDF BibTeX XML Cite \textit{V. V. Pukhnachev}, Differ. Equations 16, 313--318 (1980; Zbl 0453.35041) OpenURL
Ushijima, Teruo Note on the error estimate for the Newmark-\(\beta\) method applied to the second order linear evolution equation of hyperbolic type. (English) Zbl 0452.65062 Mem. Numer. Math. 7, 53-66 (1980). MSC: 65M15 35L15 65M06 34G10 65J10 PDF BibTeX XML Cite \textit{T. Ushijima}, Mem. Numer. Math. 7, 53--66 (1980; Zbl 0452.65062) OpenURL
Mel’nik, Z. O. Ein Beispiel eines nichtklassischen Randwertproblems für die Gleichung der Schwingungen einer Saite. (Russian) Zbl 0452.35071 Ukr. Mat. Zh. 32, 671-674 (1980). MSC: 35L20 35L05 35Q99 PDF BibTeX XML Cite \textit{Z. O. Mel'nik}, Ukr. Mat. Zh. 32, 671--674 (1980; Zbl 0452.35071) OpenURL
Boyd, J. N.; Raychowdhury, P. N. Group theoretical aspects of solutions to a two dimensional steady-state heat equation. (English) Zbl 0452.35048 Bull. Inst. Math., Acad. Sin. 8, 617-622 (1980). MSC: 35K05 35J15 31B35 PDF BibTeX XML Cite \textit{J. N. Boyd} and \textit{P. N. Raychowdhury}, Bull. Inst. Math., Acad. Sin. 8, 617--622 (1980; Zbl 0452.35048) OpenURL
Abdelaziz, Nazar H. Almost periodic solutions of a non-linear second order hyperbolic equation in a Hilbert space. (English) Zbl 0452.35004 J. Univ. Kuwait, Sci. 7, 83-87 (1980). MSC: 35B15 35L70 47H10 PDF BibTeX XML Cite \textit{N. H. Abdelaziz}, J. Univ. Kuwait, Sci. 7, 83--87 (1980; Zbl 0452.35004) OpenURL
Ball, J. M. Strict convexity, strong ellipticity, and regularity in the calculus of variations. (English) Zbl 0451.35028 Math. Proc. Camb. Philos. Soc. 87, 501-513 (1980). MSC: 35J15 52A20 49J20 PDF BibTeX XML Cite \textit{J. M. Ball}, Math. Proc. Camb. Philos. Soc. 87, 501--513 (1980; Zbl 0451.35028) Full Text: DOI OpenURL
Kaminogo, Takashi A variation of Kneser’s theorem and boundary value problems. (English) Zbl 0451.34014 Tohoku Math. J., II. Ser. 32, 511-523 (1980). MSC: 34B15 34B10 34A34 PDF BibTeX XML Cite \textit{T. Kaminogo}, Tohoku Math. J. (2) 32, 511--523 (1980; Zbl 0451.34014) Full Text: DOI OpenURL
Willem, Michel Variational methods and almost solvability of semilinear equations. (English) Zbl 0449.35035 Rapp., Semin. Math. Appl. Mec., Univ. Cathol. Louvain 133, 8 p. (1980). MSC: 35J60 35A05 35P99 35L70 35A15 49J40 35J20 35B10 PDF BibTeX XML OpenURL
Bandle, Catherine Error estimates for some nonlinear Dirichlet problems. (English) Zbl 0449.35023 Nonlinear Anal., Theory Methods Appl. 4, 1073-1079 (1980). MSC: 35J25 49J20 49J40 35J60 PDF BibTeX XML Cite \textit{C. Bandle}, Nonlinear Anal., Theory Methods Appl. 4, 1073--1079 (1980; Zbl 0449.35023) Full Text: DOI OpenURL
Yee, John A nonlinear, second-order population model. (English) Zbl 0448.92017 Theor. Popul. Biol. 18, 175-191 (1980). MSC: 92D25 34C05 34A34 34C15 PDF BibTeX XML Cite \textit{J. Yee}, Theor. Popul. Biol. 18, 175--191 (1980; Zbl 0448.92017) Full Text: DOI OpenURL
Bluman, George W. On the transformation of diffusion processes into the Wiener process. (English) Zbl 0448.60056 SIAM J. Appl. Math. 39, 239-247 (1980). MSC: 60J60 35K10 35A30 58J70 PDF BibTeX XML Cite \textit{G. W. Bluman}, SIAM J. Appl. Math. 39, 239--247 (1980; Zbl 0448.60056) Full Text: DOI Link OpenURL
Reiss, Edward L. A modified two-time method for the dynamic transitions of bifurcation. (English) Zbl 0448.35010 SIAM J. Appl. Math. 38, 249-260 (1980). MSC: 35B32 35L70 35Q99 PDF BibTeX XML Cite \textit{E. L. Reiss}, SIAM J. Appl. Math. 38, 249--260 (1980; Zbl 0448.35010) Full Text: DOI OpenURL
Osher, Stanley One-sided difference schemes and transonic flow. (English) Zbl 0446.76055 Computing methods in applied sciences and engineering, Proc. 4th int. Symp., Versailles 1979, 153-156 (1980). MSC: 76H05 65N99 65Z05 PDF BibTeX XML OpenURL
Chang, Der-Shin A note on sampling from stochastic differential equation model. (English) Zbl 0446.62087 Chin. J. Math. 8, 27-31 (1980). MSC: 62M05 60H10 62M10 PDF BibTeX XML Cite \textit{D.-S. Chang}, Chin. J. Math. 8, 27--31 (1980; Zbl 0446.62087) OpenURL
Kushner, H. B.; Meisner, Morris Eigenfunctions of expected value operators in the Wishart distribution. (English) Zbl 0446.62046 Ann. Stat. 8, 977-988 (1980). MSC: 62H10 62H99 45C05 PDF BibTeX XML Cite \textit{H. B. Kushner} and \textit{M. Meisner}, Ann. Stat. 8, 977--988 (1980; Zbl 0446.62046) Full Text: DOI OpenURL
Kowalewski, A.; Kotarski, W. Application of Milutin-Dubovicki’s method to solving an optimal control problem for hyperbolic systems. (English) Zbl 0446.49016 Probl. Control Inf. Theory 9, 183-193 (1980). MSC: 49K20 93C05 35L20 PDF BibTeX XML Cite \textit{A. Kowalewski} and \textit{W. Kotarski}, Probl. Control Inf. Theory 9, 183--193 (1980; Zbl 0446.49016) OpenURL
Mejrmanov, A. M. Über die klassische Lösung des mehrdimensionalen Stefanproblems für quasilineare parabolische Gleichungen. (Russian) Zbl 0446.35056 Mat. Sb., N. Ser. 112(154), 170-192 (1980). MSC: 35K20 35R35 PDF BibTeX XML Cite \textit{A. M. Mejrmanov}, Mat. Sb., Nov. Ser. 112(154), 170--192 (1980; Zbl 0446.35056) Full Text: EuDML OpenURL
Bauhain, Marc Liaison entre équations différentielles de type Schrödinger reduit et équations de champs non linéaires. (French) Zbl 0446.35036 C. R. Acad. Sci., Paris, Sér. B 290, 419-422 (1980). MSC: 35J10 35A25 35A05 35B10 PDF BibTeX XML Cite \textit{M. Bauhain}, C. R. Acad. Sci., Paris, Sér. B 290, 419--422 (1980; Zbl 0446.35036) OpenURL
Atanackovic, T.; Baclic, B. A new time invariant for heat conduction with finite wave speed. (English) Zbl 0444.35073 Z. Angew. Math. Mech. 60, 168-169 (1980). MSC: 35Q99 35L10 80A20 PDF BibTeX XML Cite \textit{T. Atanackovic} and \textit{B. Baclic}, Z. Angew. Math. Mech. 60, 168--169 (1980; Zbl 0444.35073) Full Text: DOI OpenURL
Gidas, Basilis Symmetry properties and isolated singularities of positive solutions of nonlinear elliptic equations. (English) Zbl 0444.35038 Nonlinear partial differential equations in engineering and applied science, Proc. Conf., Kingston 1979, Lect. Notes Pure Appl. Math. 54, 255-273 (1980). MSC: 35J60 35B50 35A20 PDF BibTeX XML OpenURL
Steinmetz, Norbert Über das Anwachsen der Lösungen homogener algebraischer Differentialgleichungen zweiter Ordnung. (German) Zbl 0444.34035 Manuscr. Math. 32, 303-308 (1980). MSC: 34C11 PDF BibTeX XML Cite \textit{N. Steinmetz}, Manuscr. Math. 32, 303--308 (1980; Zbl 0444.34035) Full Text: DOI EuDML OpenURL
Weber, T. A.; Hammer, C. L. A note on completeness. (English) Zbl 0444.34030 J. Math. Phys. 21, 24-27 (1980). MSC: 34L99 81U05 34F05 34C10 PDF BibTeX XML Cite \textit{T. A. Weber} and \textit{C. L. Hammer}, J. Math. Phys. 21, 24--27 (1980; Zbl 0444.34030) Full Text: DOI OpenURL
Perla Menzala, Gustavo On the existence of solutions of a Hartree type equation. (English) Zbl 0443.45019 An. Acad. Bras. Cienc. 52, 207-209 (1980). MSC: 45K05 45L05 81V45 35D30 35J20 35Q40 PDF BibTeX XML Cite \textit{G. Perla Menzala}, An. Acad. Bras. Ciênc. 52, 207--209 (1980; Zbl 0443.45019) OpenURL
Rabinowitz, Paul H. Critical points of indefinite functionals and periodic solutions of differential equations. (English) Zbl 0443.35044 Proc. int. Congr. Math., Helsinki 1978, Vol. 2, 791-796 (1980). MSC: 35L70 35B10 34C25 58E05 70H05 35B32 PDF BibTeX XML OpenURL
Egorov, I. E. Cauchy problem for a degenerating second-order operator equation. (English) Zbl 0443.34056 Sib. Math. J. 20, 717-722 (1980). MSC: 34G10 47E05 PDF BibTeX XML Cite \textit{I. E. Egorov}, Sib. Math. J. 20, 717--722 (1980; Zbl 0443.34056) Full Text: DOI OpenURL
Makarov, V. L.; Gavrilyuk, I. P.; Luzhnykh, V. M. A difference method to solve a Sturm-Liouville problem with degeneration at the boundary. I. (Russian) Zbl 0442.65076 Vychisl. Prikl. Mat., Kiev 40, 103-113 (1980). MSC: 65L15 34L99 PDF BibTeX XML Cite \textit{V. L. Makarov} et al., Vychisl. Prikl. Mat. 40, 103--113 (1980; Zbl 0442.65076) OpenURL
Stevens, Robert R. Periodic solutions of x”+g(t,x)=0. (English) Zbl 0442.34038 SIAM J. Math. Anal. 11, 400-403 (1980). MSC: 34C25 PDF BibTeX XML Cite \textit{R. R. Stevens}, SIAM J. Math. Anal. 11, 400--403 (1980; Zbl 0442.34038) Full Text: DOI OpenURL
Taniguchi, Kazuo; Tozaki, Yoshiharu A hyperbolic equation with double characteristics which has a solution with branching singularities. (English) Zbl 0441.35040 Math. Jap. 25, 279-300 (1980). MSC: 35L15 35L67 35A20 PDF BibTeX XML Cite \textit{K. Taniguchi} and \textit{Y. Tozaki}, Math. Japon. 25, 279--300 (1980; Zbl 0441.35040) OpenURL
Zuckerman, Dror A diffusion process model for the optimal investment strategies of an R & D project. (English) Zbl 0439.90045 J. Appl. Probab. 17, 646-653 (1980). MSC: 90B99 PDF BibTeX XML Cite \textit{D. Zuckerman}, J. Appl. Probab. 17, 646--653 (1980; Zbl 0439.90045) Full Text: DOI OpenURL
Sapagovas, M. P.; Sapagovene, D. J. Numerical results of the solution of nonlinear and nonselfadjoint problems by the alternately triangular method. (Russian) Zbl 0439.65078 Litov. Mat. Sb. 20, No. 2, 149-157 (1980). MSC: 65N12 35J25 65N06 35J65 PDF BibTeX XML Cite \textit{M. P. Sapagovas} and \textit{D. J. Sapagovene}, Litov. Mat. Sb. 20, No. 2, 149--157 (1980; Zbl 0439.65078) OpenURL
Alinhac, S.; Lerner, N. Unicité forte à partir d’une variété de dimension quelconque pour des inégalités différentielles elliptiques. (French) Zbl 0439.35024 Sémin. Goulaouic-Schwartz 1979-1980, Équat. dériv. part., Exposé No. 20, 9 p. (1980). MSC: 35J15 35R45 35A05 58J10 PDF BibTeX XML Full Text: Numdam EuDML OpenURL
Vigak, V. M. On the solution of a differential equation of second order and its application to the heat conduction problem in piecewise homogeneous multilayer bodies. (Russian) Zbl 0439.34015 Mat. Metody Fiz.-Mekh. Polya 11, 104-107 (1980). MSC: 34A99 74J99 80A20 PDF BibTeX XML Cite \textit{V. M. Vigak}, Mat. Metody Fiz.-Mekh. Polya 11, 104--107 (1980; Zbl 0439.34015) OpenURL
Teo, K. L. Existence and uniqueness of solutions of system governed by second order quasilinear integro-partial differential equation of parabolic type. (English) Zbl 0438.45009 Aequationes Math. 20, 133-148 (1980). MSC: 45K05 35K05 PDF BibTeX XML Cite \textit{K. L. Teo}, Aequationes Math. 20, 133--148 (1980; Zbl 0438.45009) Full Text: DOI EuDML OpenURL