Veliev, O. A. On the two-dimensional Schrödinger operator whose periodic potential is square integrable in a fundamental domain. (Russian) Zbl 0867.35023 Spektr. Teor. Oper. Prilozh. 10, 64-76 (1991). Reviewer: J.Appell (Würzburg) MSC: 35J10 35P05 47F05 PDFBibTeX XMLCite \textit{O. A. Veliev}, Spektr. Teor. Oper. Prilozh. 10, 64--76 (1991; Zbl 0867.35023)
Pekár, J. A numerical solution of the differential equation \(u''+ 2u'/r = u-u^ 3\). (English) Zbl 0765.65074 Calcolo 28, No. 3-4, 151-164 (1991). Reviewer: N.Parhi (Berhampur) MSC: 65L05 34A34 35Q53 81Q05 PDFBibTeX XMLCite \textit{J. Pekár}, Calcolo 28, No. 3--4, 151--164 (1991; Zbl 0765.65074) Full Text: DOI
Nair, Balan; White, Benjamin S. High-frequency wave propagation in random media — a unified approach. (English) Zbl 0780.73022 SIAM J. Appl. Math. 51, No. 2, 374-411 (1991). Reviewer: V.Marinca (Timişoara) MSC: 74J99 74H50 34F05 82D30 78A10 PDFBibTeX XMLCite \textit{B. Nair} and \textit{B. S. White}, SIAM J. Appl. Math. 51, No. 2, 374--411 (1991; Zbl 0780.73022) Full Text: DOI
Ruiz, Alberto; Vega, Luis Unique continuation for Schrödinger operators with potential in Morrey spaces. (English) Zbl 0809.47046 Publ. Mat., Barc. 35, No. 1, 291-298 (1991). Reviewer: V.V.Kovrizhkin (Omsk) MSC: 47F05 35J10 PDFBibTeX XMLCite \textit{A. Ruiz} and \textit{L. Vega}, Publ. Mat., Barc. 35, No. 1, 291--298 (1991; Zbl 0809.47046) Full Text: DOI EuDML
D’Aprile, M.; Marino, V. A geometric method to determine PDE conservation laws. (English) Zbl 0761.58055 Rep. Math. Phys. 30, No. 2, 169-175 (1991). MSC: 58J72 35A22 PDFBibTeX XMLCite \textit{M. D'Aprile} and \textit{V. Marino}, Rep. Math. Phys. 30, No. 2, 169--175 (1991; Zbl 0761.58055) Full Text: DOI
Bielawski, Dariusz; Pruszko, Tadeusz On the structure of the set of solutions of a functional equation with applications to boundary value problems. (English) Zbl 0742.34020 Ann. Pol. Math. 53, No. 3, 201-209 (1991). Reviewer: Sun Jingxian (Jinan) MSC: 34B15 55M20 47J05 PDFBibTeX XMLCite \textit{D. Bielawski} and \textit{T. Pruszko}, Ann. Pol. Math. 53, No. 3, 201--209 (1991; Zbl 0742.34020) Full Text: DOI
Samojlenko, A. M.; Pelyukh, G. P. Existence and uniqueness of bounded (on the whole axis) solutions of systems of nonlinear differential-difference equations of neutral type. (English. Russian original) Zbl 0739.34062 Ukr. Math. J. 43, No. 3, 354-358 (1991); translation from Ukr. Mat. Zh. 43, No. 3, 390-394 (1991). MSC: 34K40 34K05 34K99 34C11 PDFBibTeX XMLCite \textit{A. M. Samojlenko} and \textit{G. P. Pelyukh}, Ukr. Math. J. 43, No. 3, 354--358 (1991; Zbl 0739.34062); translation from Ukr. Mat. Zh. 43, No. 3, 390--394 (1991) Full Text: DOI
Nizhnik, L. P.; Taraborkin, L. A. On self-adjoint operators generated by nonhomogeneous elliptic problems with discontinuous boundary conditions and conjugation conditions. (English. Russian original) Zbl 0735.35050 Ukr. Math. J. 43, No. 3, 338-345 (1991); translation from Ukr. Mat. Zh. 43, No. 3, 374-381 (1991). Reviewer: P.Szeptycki (Lawrence) MSC: 35J25 35K60 47F05 PDFBibTeX XMLCite \textit{L. P. Nizhnik} and \textit{L. A. Taraborkin}, Ukr. Math. J. 43, No. 3, 338--345 (1991; Zbl 0735.35050); translation from Ukr. Mat. Zh. 43, No. 3, 374--381 (1991) Full Text: DOI
Zdun, Marek Cezary On diffeomorphic solutions of simultaneous Abel’s equations. (English) Zbl 0759.39006 Arch. Math., Brno 27a, 123-131 (1991). Reviewer: H.L.Vasudeva (Chandigarh) MSC: 39B12 34K99 PDFBibTeX XMLCite \textit{M. C. Zdun}, Arch. Math., Brno 27, 123--131 (1991; Zbl 0759.39006) Full Text: EuDML
Schimming, Rainer A formal series solution of the one-dimensional Schrödinger equation. (English) Zbl 0756.34009 Arch. Math., Brno 27a, 85-93 (1991). MSC: 34A25 34L40 34A45 34E05 34A30 34A05 PDFBibTeX XMLCite \textit{R. Schimming}, Arch. Math., Brno 27, 85--93 (1991; Zbl 0756.34009) Full Text: EuDML
Parhi, N.; Das, P. On the zeros of solutions of nonhomogeneous third order differential equations. (English) Zbl 0758.34022 Czech. Math. J. 41(116), No. 4, 641-652 (1991). Reviewer: D.Bobrowski (Poznań) MSC: 34C10 PDFBibTeX XMLCite \textit{N. Parhi} and \textit{P. Das}, Czech. Math. J. 41(116), No. 4, 641--652 (1991; Zbl 0758.34022) Full Text: EuDML
Kjellmert, Bo A comparative study of the behaviour of a direct solver and a preconditioned iterative solver for the equations arising from the discretization by Chebyshev collocation of a second-order partial differential equation on a square. (English) Zbl 0758.65069 Int. J. Numer. Methods Eng. 32, No. 3, 527-539 (1991). Reviewer: V.Subba Rao (Madras) MSC: 65N35 65N22 65F05 65F10 65N06 65F35 35G15 PDFBibTeX XMLCite \textit{B. Kjellmert}, Int. J. Numer. Methods Eng. 32, No. 3, 527--539 (1991; Zbl 0758.65069) Full Text: DOI
Mazar, R.; Bronshtein, A. Double passage analysis in random media using two-scale random propagators. (English) Zbl 0760.73015 Waves Random Media 1, No. 4, 341-362 (1991). Reviewer: D.Stanomir (Bucureşti) MSC: 74J20 74A40 PDFBibTeX XMLCite \textit{R. Mazar} and \textit{A. Bronshtein}, Waves Random Media 1, No. 4, 341--362 (1991; Zbl 0760.73015) Full Text: DOI
Doelman, Arjen Finite-dimensional models of the Ginzburg-Landau equation. (English) Zbl 0841.35007 Nonlinearity 4, No. 2, 231-250 (1991). Reviewer: E.Minchev (Sofia) MSC: 65M99 65N99 37C70 35Q40 34D05 65M60 PDFBibTeX XMLCite \textit{A. Doelman}, Nonlinearity 4, No. 2, 231--250 (1991; Zbl 0841.35007) Full Text: DOI
Bajnov, D. D.; Kostadinov, S. I.; Zabrejko, P. P. Stability of the exponential dichotomy of linear impulsive differential equations. (English) Zbl 0765.34040 Riv. Mat. Univ. Parma, IV. Ser. 17, 271-277 (1991). Reviewer: Yu.S.Eidel’man (Voronezh) MSC: 34G10 34A37 34D05 PDFBibTeX XMLCite \textit{D. D. Bajnov} et al., Riv. Mat. Univ. Parma, IV. Ser. 17, 271--277 (1991; Zbl 0765.34040)
Balachandran, K.; Anguraj, A. Existence, continuous dependence and periodic solutions of nonlinear integrodifferential equation with infinite delay. (English) Zbl 0756.45011 Riv. Mat. Univ. Parma, IV. Ser. 17, 171-180 (1991). Reviewer: I.Foltyńska (Poznań) MSC: 45J05 45G15 45M15 PDFBibTeX XMLCite \textit{K. Balachandran} and \textit{A. Anguraj}, Riv. Mat. Univ. Parma, IV. Ser. 17, 171--180 (1991; Zbl 0756.45011)
Zhang, Rongye Cauchy problem for some second-order linear differential operational equation in Hilbert space and its approximate solution. (Chinese. English summary) Zbl 0856.65063 Pure Appl. Math. 7, No. 1, 88-93 (1991). MSC: 65J10 65L60 65L70 34G10 65L05 PDFBibTeX XMLCite \textit{R. Zhang}, Pure Appl. Math. 7, No. 1, 88--93 (1991; Zbl 0856.65063)
Pan, Li; Yang, Mingzhu Parametric problems and inverse problems for some integro-differential equations. (Chinese. English summary) Zbl 0856.45014 Pure Appl. Math. 7, No. 2, 32-38 (1991). MSC: 45K05 45M20 PDFBibTeX XMLCite \textit{L. Pan} and \textit{M. Yang}, Pure Appl. Math. 7, No. 2, 32--38 (1991; Zbl 0856.45014)
Meng, Fanwei Asymptotic behavior of solutions of certain integro-differential equations with deviating arguments. (Chinese. English summary) Zbl 0856.45011 Pure Appl. Math. 7, No. 2, 17-22 (1991). MSC: 45J05 45M05 PDFBibTeX XMLCite \textit{F. Meng}, Pure Appl. Math. 7, No. 2, 17--22 (1991; Zbl 0856.45011)
Bauer, Heinz Dirichlet problem and irregular boundary points. (English) Zbl 0763.31002 Arkhimedes 43, No. 4, 290-294 (1991). Reviewer: W.Hoh (Erlangen) MSC: 31B25 31B35 31C40 PDFBibTeX XMLCite \textit{H. Bauer}, Arkhimedes 43, No. 4, 290--294 (1991; Zbl 0763.31002)
Gani, J.; Michaletzky, Gy. A carrier-borne epidemic with multiple stages of infection. (English) Zbl 0742.92018 J. Appl. Probab. 28, No. 1, 1-8 (1991). Reviewer: G.Jetschke (Jena) MSC: 92D30 60J20 60J10 PDFBibTeX XMLCite \textit{J. Gani} and \textit{Gy. Michaletzky}, J. Appl. Probab. 28, No. 1, 1--8 (1991; Zbl 0742.92018) Full Text: DOI
Yang, Xiangqun; Li, Yingqin Several new developments on two-parameter Markov processes. II. (Chinese) Zbl 0792.60041 Nat. Sci. J. Xiangtan Univ. 13, No. 4, 43-52 (1991). Reviewer: Wu Chengxun (Shanghai) MSC: 60G60 60G48 60H15 60J70 PDFBibTeX XMLCite \textit{X. Yang} and \textit{Y. Li}, Nat. Sci. J. Xiangtan Univ. 13, No. 4, 43--52 (1991; Zbl 0792.60041)
Chen, Chuanmiao; Xie, Ziqing Finite element for nonlinear parabolic integrodifferential equations. (Chinese. English summary) Zbl 0756.65149 Nat. Sci. J. Xiangtan Univ. 13, No. 4, 4-11 (1991). Reviewer: S.Jiang (Bonn) MSC: 65R20 45K05 PDFBibTeX XMLCite \textit{C. Chen} and \textit{Z. Xie}, Nat. Sci. J. Xiangtan Univ. 13, No. 4, 4--11 (1991; Zbl 0756.65149)
Pachpatte, B. G. Asymptotic behaviour of oscillatory solutions of certain functional differential equations. (English) Zbl 0756.34071 J. M.A.C.T. 24, 39-45 (1991). Reviewer: Charles A.Swanson (Vancouver) MSC: 34K99 34C10 34K25 PDFBibTeX XMLCite \textit{B. G. Pachpatte}, J. M.A.C.T. 24, 39--45 (1991; Zbl 0756.34071)
Mazanik, S. A. On Lyapunov transformations of linear systems of implicit differential equations. (English) Zbl 0758.34001 Arch. Math., Brno 27b, 167-173 (1991). Reviewer: A.Ilchmann (Exeter) MSC: 34A09 34A30 34C20 PDFBibTeX XMLCite \textit{S. A. Mazanik}, Arch. Math., Brno 27, 167--173 (1991; Zbl 0758.34001) Full Text: EuDML
Kreith, Kurt Initial value parameters corresponding to positive Green’s functions. (English) Zbl 0759.34028 Arch. Math., Brno 27b, 161-166 (1991). Reviewer: J.Diblík (Brno) MSC: 34C10 34B05 34B27 PDFBibTeX XMLCite \textit{K. Kreith}, Arch. Math., Brno 27, 161--166 (1991; Zbl 0759.34028) Full Text: EuDML
Stewart, H. B.; Thompson, J. M. T.; Lansbury, A. N.; Ueda, Y. Generic patterns of bifurcation governing escape from potential wells. (English) Zbl 0760.34034 Int. J. Bifurcation Chaos Appl. Sci. Eng. 1, No. 1, 265-267 (1991). Reviewer: C.Mira (Toulouse) MSC: 34C23 PDFBibTeX XMLCite \textit{H. B. Stewart} et al., Int. J. Bifurcation Chaos Appl. Sci. Eng. 1, No. 1, 265--267 (1991; Zbl 0760.34034) Full Text: DOI
Meijaard, J. P. Direct determination of periodic solutions of the dynamical equations of flexible mechanisms and manipulators. (English) Zbl 0756.73089 Int. J. Numer. Methods Eng. 32, No. 8, 1691-1710 (1991). MSC: 74S05 74H45 70B15 34C25 PDFBibTeX XMLCite \textit{J. P. Meijaard}, Int. J. Numer. Methods Eng. 32, No. 8, 1691--1710 (1991; Zbl 0756.73089) Full Text: DOI
Ledger, A. J.; Tsagas, F. Some properties of the Laplacian on spherical space forms. (English) Zbl 0754.53037 Bull. Calcutta Math. Soc. 83, No. 5, 491-500 (1991). Reviewer: P.Gilkey (Eugene) MSC: 53C30 58J50 PDFBibTeX XMLCite \textit{A. J. Ledger} and \textit{F. Tsagas}, Bull. Calcutta Math. Soc. 83, No. 5, 491--500 (1991; Zbl 0754.53037)
Sahoo, B. K. Asymptotic properties of solutions of a second order differential equation. (English) Zbl 0755.34028 Bull. Calcutta Math. Soc. 83, No. 3, 209-226 (1991). MSC: 34C11 34D05 PDFBibTeX XMLCite \textit{B. K. Sahoo}, Bull. Calcutta Math. Soc. 83, No. 3, 209--226 (1991; Zbl 0755.34028)
Lunardi, Alessandra On a class of fully nonlinear parabolic equations. (English) Zbl 0738.35032 Commun. Partial Differ. Equations 16, No. 1, 145-172 (1991). Reviewer: A.D.Osborne (Keele) MSC: 35K60 35G10 35K25 34G20 35B65 35A07 PDFBibTeX XMLCite \textit{A. Lunardi}, Commun. Partial Differ. Equations 16, No. 1, 145--172 (1991; Zbl 0738.35032) Full Text: DOI
Qin, Mengzhao Cross-schemes for equation \(\ddot x= f(x)\). (Chinese. English summary) Zbl 0850.65153 Math. Numer. Sin. 13, No. 1, 67-75 (1991). MSC: 65L12 65L05 37J99 PDFBibTeX XMLCite \textit{M. Qin}, Math. Numer. Sin. 13, No. 1, 67--75 (1991; Zbl 0850.65153)
Yudovich, V. I. On free convection in an infinitely viscous fluid. (Russian) Zbl 0754.76075 Izv. Sev.-Kavk. Nauchn. Tsentra Vyssh. Shk., Estestv. Nauki 1991, No. 4(76), 84-90 (1991). Reviewer: E.Lanckau (Chemnitz) MSC: 76R10 76D99 35Q35 80A20 PDFBibTeX XMLCite \textit{V. I. Yudovich}, Izv. Sev.-Kavk. Nauchn. Tsentra Vyssh. Shk., Estestv. Nauki 1991, No. 4(76), 84--90 (1991; Zbl 0754.76075)
Exton, Harold On the triconfluent Heun equation \([0,0,1_ 6]\). (English) Zbl 0766.34002 Ann. Soc. Sci. Bruxelles, Sér. I 105, No. 4, 189-195 (1991). MSC: 34A05 33C15 34M99 81Q05 PDFBibTeX XMLCite \textit{H. Exton}, Ann. Soc. Sci. Brux., Sér. I 105, No. 4, 189--195 (1991; Zbl 0766.34002)
Louis, J.-Cl.; Wexler, D. The Hilbert space regulator problem and operator Riccati equation under stabilizability. (English) Zbl 0771.47026 Ann. Soc. Sci. Bruxelles, Sér. I 105, No. 4, 137-165 (1991). MSC: 47E05 PDFBibTeX XMLCite \textit{J. Cl. Louis} and \textit{D. Wexler}, Ann. Soc. Sci. Brux., Sér. I 105, No. 4, 137--165 (1991; Zbl 0771.47026)
Grigoriu, Mircea A consistent closure method for nonlinear random vibration. (English) Zbl 0753.70017 Int. J. Non-Linear Mech. 26, No. 6, 857-866 (1991). MSC: 70L05 60H30 PDFBibTeX XMLCite \textit{M. Grigoriu}, Int. J. Non-Linear Mech. 26, No. 6, 857--866 (1991; Zbl 0753.70017) Full Text: DOI
Koiso, Norihito Motion of a springy circle wire. (English) Zbl 0760.35024 Sci. Rep., Osaka 40, No. 1-2, 15-19 (1991). Reviewer: R.Finn (Stanford) MSC: 35K30 35Q35 PDFBibTeX XMLCite \textit{N. Koiso}, Sci. Rep., Osaka 40, No. 1--2, 15--19 (1991; Zbl 0760.35024)
An, Gang Singular perturbation of Robin problem for differential-difference equation. (English) Zbl 0755.34075 Northeast. Math. J. 7, No. 4, 433-447 (1991). MSC: 34K25 34E15 PDFBibTeX XMLCite \textit{G. An}, Northeast. Math. J. 7, No. 4, 433--447 (1991; Zbl 0755.34075)
Xu, Qing Finding periodic solution of Duffing equation by homotopy method. (English) Zbl 0757.34036 Northeast. Math. J. 7, No. 2, 213-220 (1991). Reviewer: Ge Weigao (Beijing) MSC: 34C25 PDFBibTeX XMLCite \textit{Q. Xu}, Northeast. Math. J. 7, No. 2, 213--220 (1991; Zbl 0757.34036)
Wang, Jinzhi Existence of solutions of nonlinear two-point boundary value problems for third order nonlinear differential equations. (English) Zbl 0755.34021 Northeast. Math. J. 7, No. 2, 181-189 (1991). MSC: 34B15 PDFBibTeX XMLCite \textit{J. Wang}, Northeast. Math. J. 7, No. 2, 181--189 (1991; Zbl 0755.34021)
Greenberg, Peter; Sergiescu, Vlad An acyclic extension of the braid group. (English) Zbl 0736.20020 Comment. Math. Helv. 66, No. 1, 109-138 (1991). Reviewer: C.-H.Sah (Stony Brook) MSC: 20F36 57Q45 58D05 55R35 20E22 57R50 20J05 PDFBibTeX XMLCite \textit{P. Greenberg} and \textit{V. Sergiescu}, Comment. Math. Helv. 66, No. 1, 109--138 (1991; Zbl 0736.20020) Full Text: DOI EuDML
Muleshkov, Angel; Banerjee, Sunirmal On the solution of steady unconfined seepage towards semi-infinite slopes. (English) Zbl 0753.76172 Int. J. Numer. Anal. Methods Geomech. 15, No. 4, 271-288 (1991). MSC: 76S05 30C20 PDFBibTeX XMLCite \textit{A. Muleshkov} and \textit{S. Banerjee}, Int. J. Numer. Anal. Methods Geomech. 15, No. 4, 271--288 (1991; Zbl 0753.76172) Full Text: DOI
Şuhubi, E. S.; Bakkaloǧlu, A. Group properties and similarity solutions for a quasi-linear wave equation in the plane. (English) Zbl 0756.35043 Int. J. Non-Linear Mech. 26, No. 5, 567-584 (1991). MSC: 35L05 35L70 35A30 58A10 58J70 PDFBibTeX XMLCite \textit{E. S. Şuhubi} and \textit{A. Bakkaloǧlu}, Int. J. Non-Linear Mech. 26, No. 5, 567--584 (1991; Zbl 0756.35043) Full Text: DOI
Krasiński, Andrzej A note on the uniqueness of the Wyman solution. (English) Zbl 0753.53052 Rep. Math. Phys. 29, No. 3, 337-339 (1991). MSC: 53Z05 35Q75 83C20 PDFBibTeX XMLCite \textit{A. Krasiński}, Rep. Math. Phys. 29, No. 3, 337--339 (1991; Zbl 0753.53052) Full Text: DOI
Zurbrügg, Ch. Periodic solutions of a pendulum-like integrodifferential equation with infinite retardation describing Josephson tunneling. (English) Zbl 0755.45016 Z. Angew. Math. Mech. 71, No. 1, 21-28 (1991). Reviewer: T.R.Faulkner (Nottingham) MSC: 45J05 45M15 82D55 PDFBibTeX XMLCite \textit{Ch. Zurbrügg}, Z. Angew. Math. Mech. 71, No. 1, 21--28 (1991; Zbl 0755.45016) Full Text: DOI
Barnovska, M.; Il’in, B. A. On the order of almost everywhere equiconvergence of Riesz means of non- self-adjoint extensions of the Laplace operator. (Russian. English summary) Zbl 0755.35077 Math. Slovaca 41, No. 2, 205-222 (1991). MSC: 35P05 47F05 35J05 PDFBibTeX XMLCite \textit{M. Barnovska} and \textit{B. A. Il'in}, Math. Slovaca 41, No. 2, 205--222 (1991; Zbl 0755.35077) Full Text: EuDML
Grace, S. R. Oscillation of even order nonlinear functional differential equations with deviating arguments. (English) Zbl 0753.34047 Math. Slovaca 41, No. 2, 189-204 (1991). MSC: 34K99 34C10 PDFBibTeX XMLCite \textit{S. R. Grace}, Math. Slovaca 41, No. 2, 189--204 (1991; Zbl 0753.34047) Full Text: EuDML
Haluška, Vladimír On the existence of a solution of a vector periodic boundary value problem. (English) Zbl 0753.34012 Math. Slovaca 41, No. 1, 89-99 (1991). MSC: 34B15 34B27 34C25 PDFBibTeX XMLCite \textit{V. Haluška}, Math. Slovaca 41, No. 1, 89--99 (1991; Zbl 0753.34012) Full Text: EuDML
Lin, Ching-Her Gevrey property of formal solutions of a differential system. (English) Zbl 0764.34045 Bull. Inst. Math., Acad. Sin. 19, No. 4, 297-301 (1991). Reviewer: M.Rodriguez Ricard (La Habana) MSC: 34E15 PDFBibTeX XMLCite \textit{C.-H. Lin}, Bull. Inst. Math., Acad. Sin. 19, No. 4, 297--301 (1991; Zbl 0764.34045)
Chvála, František On the linear Boltzmann kinetic equation involving external forces. (English) Zbl 0805.76066 Acta Tech. ČSAV 36, No. 2, 231-253 (1991). Reviewer: V.C.Boffi (Roma) MSC: 76P05 45K05 PDFBibTeX XMLCite \textit{F. Chvála}, Acta Tech. ČSAV 36, No. 2, 231--253 (1991; Zbl 0805.76066)
Yang, Danping Boundary element methods for two-dimensional stationary convection- diffusion problem. (Chinese. English summary) Zbl 0755.65110 Numer. Math., Nanjing 13, No. 4, 356-367 (1991). Reviewer: Qin Mengzhao (Beijing) MSC: 65N38 65N30 65N15 35J25 PDFBibTeX XMLCite \textit{D. Yang}, Numer. Math., Nanjing 13, No. 4, 356--367 (1991; Zbl 0755.65110)
Wang, Mingxin; Zhang, Quin Oscillation and asymptotic behavior of some second order retarded differential equations. (English) Zbl 0754.34072 Acta Math. Sci. 11, No. 4, 433-441 (1991). Reviewer: P.Marušiak (Žilina) MSC: 34K99 34C10 PDFBibTeX XMLCite \textit{M. Wang} and \textit{Q. Zhang}, Acta Math. Sci. 11, No. 4, 433--441 (1991; Zbl 0754.34072)
Chen, Boshan Oscillation theorems for second order nonlinear differential equations with damping. (English) Zbl 0754.34024 Acta Math. Sci. 11, No. 4, 409-416 (1991). Reviewer: M.Bartušek (Brno) MSC: 34C10 PDFBibTeX XMLCite \textit{B. Chen}, Acta Math. Sci. 11, No. 4, 409--416 (1991; Zbl 0754.34024)
Murty, K. N.; Prasad, K. R. Solution of a non-homogeneous Liapunov’s equation. (English) Zbl 0737.34013 Tamkang J. Math. 22, No. 1, 31-38 (1991). Reviewer: M.Möller (Regensburg) MSC: 34B10 34B27 34B05 34B15 PDFBibTeX XMLCite \textit{K. N. Murty} and \textit{K. R. Prasad}, Tamkang J. Math. 22, No. 1, 31--38 (1991; Zbl 0737.34013)
Asanov, G. S.; Stavrinos, P. C. Finslerian deviations of geodesics over tangent bundle. (English) Zbl 0763.53027 Rep. Math. Phys. 30, No. 1, 63-69 (1991). Reviewer: F.C.Klepp (Timişoara) MSC: 53B40 53Z05 PDFBibTeX XMLCite \textit{G. S. Asanov} and \textit{P. C. Stavrinos}, Rep. Math. Phys. 30, No. 1, 63--69 (1991; Zbl 0763.53027) Full Text: DOI
Gil’, Michael I. Estimate for norm of solutions of nonautonomous equations in Hilbert space. (English) Zbl 0766.34034 Math. Balk., New Ser. 5, No. 4, 341-349 (1991). Reviewer: G.Derfel (Beer-Sheva) MSC: 34G10 47A50 35K30 45K05 PDFBibTeX XMLCite \textit{M. I. Gil'}, Math. Balk., New Ser. 5, No. 4, 341--349 (1991; Zbl 0766.34034)
Asanov, G. S. Gauge-covariant stationary curves of Finslerian and jet fibrations and gauge extension of Lorentz force. (English) Zbl 0765.53056 Tensor, New Ser. 50, No. 2, 122-137 (1991). Reviewer: R.Miron (Iaşi) MSC: 53Z05 53C07 PDFBibTeX XMLCite \textit{G. S. Asanov}, Tensor, New Ser. 50, No. 2, 122--137 (1991; Zbl 0765.53056)
Rahman, N. A. A. Approximate solution of the differential equation with spline function. (English) Zbl 0756.65105 Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Comput. 11, 165-174 (1991). Reviewer: Z.Schneider (Bratislava) MSC: 65L05 34A34 PDFBibTeX XMLCite \textit{N. A. A. Rahman}, Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Comput. 11, 165--174 (1991; Zbl 0756.65105)
Doha, E. H. Recurrence relations for the coefficients in ultraspherical series solutions of ordinary differential equations. (English) Zbl 0757.34011 Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Comput. 11, 127-145 (1991). Reviewer: N.Parhi (Berhampur) MSC: 34A25 34A30 34A45 41A10 41A20 PDFBibTeX XMLCite \textit{E. H. Doha}, Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Comput. 11, 127--145 (1991; Zbl 0757.34011)
Kimura, Y.; Kondo, H. On a computing system that solves dynamic models utilizing their structural natures recognized by the system. (English) Zbl 0753.65056 PU.M.A., Pure Math. Appl., Ser. B 2, No. 2-3, 147-161 (1991). MSC: 65L05 65Q05 65Y10 34A34 39A10 34-04 39-04 PDFBibTeX XMLCite \textit{Y. Kimura} and \textit{H. Kondo}, PU.M.A., Pure Math. Appl., Ser. B 2, No. 2--3, 147--161 (1991; Zbl 0753.65056)
Sjöstrand, Johannes Microlocal analysis for the periodic magnetic Schrödinger equation and related questions. (English) Zbl 0761.35090 Microlocal analysis and applications, Lect. 2nd Sess. CIME, Montecatini Terme/Italy 1989, Lect. Notes Math. 1495, 237-332 (1991). Reviewer: B.Helffer (Paris) MSC: 35Q40 35A27 81Q20 35-03 PDFBibTeX XMLCite \textit{J. Sjöstrand}, Lect. Notes Math. 1495, 237--332 (1991; Zbl 0761.35090)
David, François Non-perturbative effects in 2D gravity and matrix models. (English) Zbl 0760.58050 Random surfaces and quantum gravity, Proc. NATO Adv. Res. Workshop, Cargèse/ Fr. 1990, NATO ASI Ser., Ser. B 262, 21-33 (1991). MSC: 58Z05 83C45 PDFBibTeX XMLCite \textit{F. David}, in: Random surfaces and quantum gravity. Proceedings of a NATO advanced research workshop, held May 27-June 2, 1990, in Cargèse, France. New York etc.: Plenum Press. 21--33 (1991; Zbl 0760.58050)
Després, Bruno Domain decomposition methods for harmonic wave-propagation problems. The Borg theorem for vectorial Hill equation. (Méthodes de décomposition de domaine pour les problèmes de propagation d’ondes en régime harmonique. Le théorème de Borg pour l’équation de Hill vectorielle.) (French. English summary) Zbl 0849.65085 Rocquencourt: Institut National de Recherche en Informatique et en Automatique (INRIA). vi, 233 p. (Univ. de Paris IX, 1991) (1991). MSC: 65N55 65N30 34B30 34A55 35Q60 78A40 65L15 PDFBibTeX XMLCite \textit{B. Després}, Méthodes de décomposition de domaine pour les problèmes de propagation d'ondes en régime harmonique. Le théorème de Borg pour l'équation de Hill vectorielle. Rocquencourt: Institut National de Recherche en Informatique et en Automatique (INRIA) (1991; Zbl 0849.65085)
Brown, K. J.; Tertikas, A. On the bifurcation of radially symmetric steady-state solutions arising in population genetics. (English) Zbl 0739.34031 SIAM J. Math. Anal. 22, No. 2, 400-413 (1991). Reviewer: A.I.Kolosov (Khar’kov) MSC: 34C23 92D10 35J65 34B15 PDFBibTeX XMLCite \textit{K. J. Brown} and \textit{A. Tertikas}, SIAM J. Math. Anal. 22, No. 2, 400--413 (1991; Zbl 0739.34031) Full Text: DOI
Plum, M. Computer-assisted existence proofs for two-point boundary value problems. (English) Zbl 0782.65107 Computing 46, No. 1, 19-34 (1991). Reviewer: T.Mitsui (Chikusa-ku / Nagoya) MSC: 65L10 65L70 68T15 34B15 34C23 PDFBibTeX XMLCite \textit{M. Plum}, Computing 46, No. 1, 19--34 (1991; Zbl 0782.65107) Full Text: DOI
Peterson, Allan Oscillation of second order linear matrix difference equations. (English) Zbl 0762.39005 J. Differ. Equations 89, No. 1, 69-88 (1991). Reviewer: B.Aulbach (Augsburg) MSC: 39A10 39A12 34A30 PDFBibTeX XMLCite \textit{A. Peterson}, J. Differ. Equations 89, No. 1, 69--88 (1991; Zbl 0762.39005) Full Text: DOI
Labourie, François Existence of twisted harmonic maps with values in negatively curved manifolds. (Existence d’applications harmoniques tordues à valeurs dans les variétés à courbure négative.) (French) Zbl 0783.58016 Proc. Am. Math. Soc. 111, No. 3, 877-882 (1991). MSC: 58E20 58J35 58D25 53C20 53C35 PDFBibTeX XMLCite \textit{F. Labourie}, Proc. Am. Math. Soc. 111, No. 3, 877--882 (1991; Zbl 0783.58016) Full Text: DOI
Li, Lige; Ramm, A. G. A singular perturbation result and its application to the mathematical ecology. (English) Zbl 0736.35048 Proc. Am. Math. Soc. 111, No. 4, 1043-1050 (1991). Reviewer: A.G.Ramm MSC: 35J65 92D40 34D15 34G20 PDFBibTeX XMLCite \textit{L. Li} and \textit{A. G. Ramm}, Proc. Am. Math. Soc. 111, No. 4, 1043--1050 (1991; Zbl 0736.35048) Full Text: DOI
Mishura, Yu. S. Stochastic differential equations in the plane that contain strong semimartingales. (English. Russian original) Zbl 0834.60063 Theory Probab. Math. Stat. 45, 77-85 (1992); translation from Teor. Veroyatn. Mat. Stat., Kiev 45, 79-88 (1991). MSC: 60H10 60G48 PDFBibTeX XMLCite \textit{Yu. S. Mishura}, Theory Probab. Math. Stat. 45, 1 (1991; Zbl 0834.60063); translation from Teor. Veroyatn. Mat. Stat., Kiev 45, 79--88 (1991)
Kanda, Shigeo Convergence of difference approximations and nonlinear semigroups. (English) Zbl 0768.47032 Proc. Am. Math. Soc. 111, No. 4, 941-948 (1991). MSC: 47H20 47H10 47H06 34A34 47E05 PDFBibTeX XMLCite \textit{S. Kanda}, Proc. Am. Math. Soc. 111, No. 4, 941--948 (1991; Zbl 0768.47032) Full Text: DOI
Spagnolo, Sergio On a nonlinear Cauchy problem globally well-posed in the real analytic functions. (English) Zbl 0837.35096 Ambrosetti, A. (ed.) et al., Nonlinear analysis. A tribute in honour of Giovanni Prodi. Pisa: Scuola Normale Superiore, Quaderni. Universitá di Pisa. 319-334 (1991). MSC: 35L70 45K05 35B10 PDFBibTeX XMLCite \textit{S. Spagnolo}, in: Nonlinear analysis. A tribute in honour of Giovanni Prodi. Pisa: Scuola Normale Superiore. 319--334 (1991; Zbl 0837.35096)
Sobczyk, J.; Urbanik, W. A canonical form of an algebraic equation for genus 3 Riemann surfaces. (English) Zbl 0743.53051 Lett. Math. Phys. 21, No. 1, 1-5 (1991). MSC: 53Z05 30F99 81T13 PDFBibTeX XMLCite \textit{J. Sobczyk} and \textit{W. Urbanik}, Lett. Math. Phys. 21, No. 1, 1--5 (1991; Zbl 0743.53051) Full Text: DOI
Eckmann, J.-P.; Wayne, C. E. Propagating fronts and the center manifold theorem. (English) Zbl 0790.34045 Commun. Math. Phys. 136, No. 2, 285-307 (1991). MSC: 34C45 34C30 35L05 35B10 PDFBibTeX XMLCite \textit{J. P. Eckmann} and \textit{C. E. Wayne}, Commun. Math. Phys. 136, No. 2, 285--307 (1991; Zbl 0790.34045) Full Text: DOI
Fitzgibbon, William E.; Parrott, Mary E. Linearized stability of semilinear delay equations in fractional power spaces. (English) Zbl 0736.34069 Nonlinear Anal., Theory Methods Appl. 16, No. 5, 479-487 (1991). Reviewer: R.Nagel (Tübingen) MSC: 34K20 34G20 34K30 PDFBibTeX XMLCite \textit{W. E. Fitzgibbon} and \textit{M. E. Parrott}, Nonlinear Anal., Theory Methods Appl. 16, No. 5, 479--487 (1991; Zbl 0736.34069) Full Text: DOI
Kwong, Man Kam Uniqueness results for Emden-Fowler boundary value problems. (English) Zbl 0744.34023 Nonlinear Anal., Theory Methods Appl. 16, No. 5, 435-454 (1991). Reviewer: P.Zezza (Firenze) MSC: 34B15 68W30 PDFBibTeX XMLCite \textit{M. K. Kwong}, Nonlinear Anal., Theory Methods Appl. 16, No. 5, 435--454 (1991; Zbl 0744.34023) Full Text: DOI
Dunninger, D. R.; Miklavčič, M. On a semilinear biharmonic equation. (English) Zbl 0747.35008 Nonlinear Anal., Theory Methods Appl. 16, No. 4, 383-387 (1991). Reviewer: B.Kawohl (Heidelberg) MSC: 35J65 34B15 34C10 PDFBibTeX XMLCite \textit{D. R. Dunninger} and \textit{M. Miklavčič}, Nonlinear Anal., Theory Methods Appl. 16, No. 4, 383--387 (1991; Zbl 0747.35008) Full Text: DOI
Zheng, Zuohuan On the nonexistence of periodic solutions for Liénard equations. (English) Zbl 0760.34037 Nonlinear Anal., Theory Methods Appl. 16, No. 2, 101-110 (1991). Reviewer: S.Nocilla (Torino) MSC: 34C25 PDFBibTeX XMLCite \textit{Z. Zheng}, Nonlinear Anal., Theory Methods Appl. 16, No. 2, 101--110 (1991; Zbl 0760.34037) Full Text: DOI
Ratanov, N. E.; Shukhov, A. G.; Sukhov, Yu. M. Stabilization of the statistical solution of the parabolic equation. (English) Zbl 0754.60063 Acta Appl. Math. 22, No. 1, 103-115 (1991). MSC: 60H15 82B10 PDFBibTeX XMLCite \textit{N. E. Ratanov} et al., Acta Appl. Math. 22, No. 1, 103--115 (1991; Zbl 0754.60063)
Gani, J. Generating function methods in a random allocation problem of epidemics. (English) Zbl 0828.60007 Bull. Inst. Comb. Appl. 3, 43-50 (1991). MSC: 60C05 92D30 05A15 PDFBibTeX XMLCite \textit{J. Gani}, Bull. Inst. Comb. Appl. 3, 43--50 (1991; Zbl 0828.60007)
Ronveaux, A. 4th order differential equations and orthogonal polynomials of the Laguerre-Hahn class. (English) Zbl 0834.34014 Brezinski, Claude (ed.) et al., Orthogonal polynomials and their applications. Proceedings of the third international symposium held in Erice, Italy, June 1-8, 1990. Basel: J. C. Baltzer, IMACS Ann. Comput. Appl. Math. 9, 379-385 (1991). MSC: 34A25 33C45 PDFBibTeX XMLCite \textit{A. Ronveaux}, IMACS Ann. Comput. Appl. Math. 9, 379--385 (1991; Zbl 0834.34014)
Funaro, Daniele Estimates of Laguerre spectral projectors in Sobolev spaces. (English) Zbl 0842.46017 Brezinski, Claude (ed.) et al., Orthogonal polynomials and their applications. Proceedings of the third international symposium held in Erice, Italy, June 1-8, 1990. Basel: J. C. Baltzer, IMACS Ann. Comput. Appl. Math. 9, 263-266 (1991). MSC: 46E35 65D05 41A55 PDFBibTeX XMLCite \textit{D. Funaro}, IMACS Ann. Comput. Appl. Math. 9, 263--266 (1991; Zbl 0842.46017)
Bagewadi, C. S.; Siddabasappa Solutions in constantly inclined rotating MHD plane flows. (English) Zbl 0833.76089 Ganita 42, No. 1-2, 13-21 (1991). MSC: 76W05 76U05 PDFBibTeX XMLCite \textit{C. S. Bagewadi} and \textit{Siddabasappa}, Gaṇita 42, No. 1--2, 13--21 (1991; Zbl 0833.76089)
Pacheco Castelao, José M.; Rodriguez Mielgo, César Logistic - stochastic growth and patchy distributions in the sea. (English) Zbl 0749.92023 Rev. Acad. Canar. Cienc. 3, No. 1, 75-85 (1991). MSC: 92D40 PDFBibTeX XMLCite \textit{J. M. Pacheco Castelao} and \textit{C. Rodriguez Mielgo}, Rev. Acad. Canar. Cienc. 3, No. 1, 75--85 (1991; Zbl 0749.92023)
Cederbaum, Gabriel; Aboudi, Jacob; Elishakoff, Isaac Dynamic instability of shear-deformable viscoelastic laminated plates by Lyapunov exponents. (English) Zbl 0749.73040 Int. J. Solids Struct. 28, No. 3, 317-327 (1991). MSC: 74H55 74K20 74Hxx 74E30 PDFBibTeX XMLCite \textit{G. Cederbaum} et al., Int. J. Solids Struct. 28, No. 3, 317--327 (1991; Zbl 0749.73040) Full Text: DOI
Sobotka, Zdeněk Thermorheological bending of orthotropic rectangular plates. (English) Zbl 0749.73046 Acta Tech. ČSAV 36, No. 2, 137-157 (1991). MSC: 74K20 74A15 74Hxx PDFBibTeX XMLCite \textit{Z. Sobotka}, Acta Tech. ČSAV 36, No. 2, 137--157 (1991; Zbl 0749.73046)
Ishii, Hitoshi; Menaldi, Jose-Luis; Zaremba, Leszek Viscosity solutions of the Bellman equation on an attainable set. (English) Zbl 0757.49022 Probl. Control Inf. Theory 20, No. 5, 317-328 (1991). Reviewer: A.V.Balakrishnan (Los Angeles) MSC: 49L25 49J20 PDFBibTeX XMLCite \textit{H. Ishii} et al., Probl. Control Inf. Theory 20, No. 5, 317--328 (1991; Zbl 0757.49022)
Schürmann, Michael Realization of unitary \(q\)-white noise on Fock space. (English) Zbl 0821.60074 Heyer, Herbert (ed.), Probability measures on groups X. Proceedings of the tenth Oberwolfach conference, held November 4-10, 1990 in Oberwolfach, Germany. New York, NY: Plenum Publishing Corporation. 377-386 (1991). MSC: 60H99 60B15 60G10 PDFBibTeX XMLCite \textit{M. Schürmann}, in: Probability measures on groups X. Proceedings of the tenth Oberwolfach conference, held November 4-10, 1990 in Oberwolfach, Germany. New York, NY: Plenum Publishing Corporation. 377--386 (1991; Zbl 0821.60074)
Chen, Wendeng; Yu, Yuanhong On the stability and boundedness of solutions of some nonlinear equations of the fifth order. (Chinese. English summary) Zbl 0824.34061 J. Beijing Inst. Technol. 11, No. 3, 1-11 (1991). MSC: 34D20 34D40 34C11 PDFBibTeX XMLCite \textit{W. Chen} and \textit{Y. Yu}, J. Beijing Inst. Technol. 11, No. 3, 1--11 (1991; Zbl 0824.34061)
Schwenk, Jochen Differential calculus for the \(n\)-dimensional quantum plane. (English) Zbl 0815.17013 Curtright, Thomas (ed.) et al., Proceedings of the Argonne workshop on quantum groups, held at the Argonne National Laboratory, Argonne, IL, USA, 16 April-11 May, 1990. Singapore: World Scientific. 53-61 (1991). MSC: 17B37 46L85 46L87 37J35 37K10 PDFBibTeX XMLCite \textit{J. Schwenk}, in: Proceedings of the Argonne workshop on quantum groups, held at the Argonne National Laboratory, Argonne, IL, USA, 16 April-11 May, 1990. Singapore: World Scientific. 53--61 (1991; Zbl 0815.17013)
Shih, Shagi-Di Shock layer structure of Burgers’ equation. (English) Zbl 0820.35122 Liu, Fon-Che (ed.) et al., Proceedings of the 1989 conference on nonlinear analysis, Academia Sinica, Taipei, Republic of China, 19-24 June, 1989. Singapore: World Scientific. 237-257 (1991). MSC: 35Q53 76L05 35C20 PDFBibTeX XMLCite \textit{S.-D. Shih}, in: Proceedings of the 1989 conference on nonlinear analysis, Academia Sinica, Taipei, Republic of China, 19-24 June, 1989. Singapore: World Scientific. 237--257 (1991; Zbl 0820.35122)
Hsu, Sze-Bi; Lin, Tai-Ping Local uniqueness of interior layer solution and its related stability property. (English) Zbl 0818.34028 Liu, Fon-Che (ed.) et al., Proceedings of the 1989 conference on nonlinear analysis, Academia Sinica, Taipei, Republic of China, 19-24 June, 1989. Singapore: World Scientific. 51-60 (1991). MSC: 34E15 76N20 35G10 35K25 35B35 PDFBibTeX XMLCite \textit{S.-B. Hsu} and \textit{T.-P. Lin}, in: Proceedings of the 1989 conference on nonlinear analysis, Academia Sinica, Taipei, Republic of China, 19-24 June, 1989. Singapore: World Scientific. 51--60 (1991; Zbl 0818.34028)
Chow, Pao-Liu Stochastic analysis and quasilinear parabolic equations. (English) Zbl 0818.60049 Liu, Fon-Che (ed.) et al., Proceedings of the 1989 conference on nonlinear analysis, Academia Sinica, Taipei, Republic of China, 19-24 June, 1989. Singapore: World Scientific. 31-41 (1991). MSC: 60H15 35K57 PDFBibTeX XMLCite \textit{P.-L. Chow}, in: Proceedings of the 1989 conference on nonlinear analysis, Academia Sinica, Taipei, Republic of China, 19-24 June, 1989. Singapore: World Scientific. 31--41 (1991; Zbl 0818.60049)
Nisio, Makiko On the existence of optimal relaxed control for stochastic differential equations. (English) Zbl 0816.60058 Itô, K. (ed.) et al., Gaussian random fields. Proceedings of the third Nagoya Lévy seminar, held in Nagoya, Japan, 15-20 August, 1990. Singapore: World Scientific. Ser. Probab. Stat. 1, 298-308 (1991). MSC: 60H15 93E20 PDFBibTeX XMLCite \textit{M. Nisio}, Ser. Probab. Stat. 1, 298--308 (1991; Zbl 0816.60058)
Accardi, Luigi; Lu, Yun Gang The low density limit in the finite temperature case. I. (English) Zbl 0820.46072 Itô, K. (ed.) et al., Gaussian random fields. Proceedings of the third Nagoya Lévy seminar, held in Nagoya, Japan, 15-20 August, 1990. Singapore: World Scientific. Ser. Probab. Stat. 1, 70-85 (1991). MSC: 46N55 82C10 60H10 PDFBibTeX XMLCite \textit{L. Accardi} and \textit{Y. G. Lu}, Ser. Probab. Stat. 1, 70--85 (1991; Zbl 0820.46072)
Kunita, Hiroshi Central limit theorems on random measures and stochastic difference equations. (English) Zbl 0816.60019 Itô, K. (ed.) et al., Gaussian random fields. Proceedings of the third Nagoya Lévy seminar, held in Nagoya, Japan, 15-20 August, 1990. Singapore: World Scientific. Ser. Probab. Stat. 1, 28-42 (1991). MSC: 60F05 60H99 PDFBibTeX XMLCite \textit{H. Kunita}, Ser. Probab. Stat. 1, 28--42 (1991; Zbl 0816.60019)
Lebedev, V. I. The composition method and unconventional problems. (English) Zbl 0816.65141 Sov. J. Numer. Anal. Math. Model. 6, No. 6, 485-496 (1991). MSC: 65R20 82C70 45K05 PDFBibTeX XMLCite \textit{V. I. Lebedev}, Sov. J. Numer. Anal. Math. Model. 6, No. 6, 485--496 (1991; Zbl 0816.65141)
Ziroyan, M. A. Higher-order linear ordinary differential equations with a singularity in the class of analytic functions and their application. (English. Russian original) Zbl 0818.34005 J. Contemp. Math. Anal., Armen. Acad. Sci. 26, No. 5, 424-434 (1991); translation from Izv. Akad. Nauk Armen., Mat. 26, No. 5, 58-68 (1991). MSC: 34M35 30D05 34K05 34K10 PDFBibTeX XMLCite \textit{M. A. Ziroyan}, J. Contemp. Math. Anal., Armen. Acad. Sci. 26, No. 5, 1 (1991; Zbl 0818.34005); translation from Izv. Akad. Nauk Armen., Mat. 26, No. 5, 58--68 (1991)
Seman, Ján Oscillation of the solutions of the second order nonlinear differential equation with deviating argument. (English) Zbl 0812.34071 Zb. Ved. Pr. Vys. Šk. Tech. Košiciach 1991, 17-22 (1991). MSC: 34K99 34C10 PDFBibTeX XMLCite \textit{J. Seman}, Zb. Ved. Pr. Vys. Šk. Tech. Košiciach 1991, 17--22 (1991; Zbl 0812.34071)
Aoyagi, Akira; Abe, Kanji Runge-Kutta smoother for suppression of computational-mode instability of leapfrog scheme. (English) Zbl 1415.65158 J. Comput. Phys. 93, No. 2, 287-296 (1991). MSC: 65L06 65M12 35Q53 PDFBibTeX XMLCite \textit{A. Aoyagi} and \textit{K. Abe}, J. Comput. Phys. 93, No. 2, 287--296 (1991; Zbl 1415.65158) Full Text: DOI
Mosyagin, V. V. On the theory of differential equations unsolved with respect to the derivative in locally convex spaces. (Russian) Zbl 0812.34064 Funkts. Anal. 32, 51-54 (1991). Reviewer: W.Müller (Berlin) MSC: 34G20 34A09 34A12 PDFBibTeX XMLCite \textit{V. V. Mosyagin}, Funkts. Anal. 32, 51--54 (1991; Zbl 0812.34064)