Bassanini, Piero; Cesari, Lamberto The duplication of frequency in laser radiation. (La duplicazione di frequenza nella radiazione laser.) (Italian. English summary) Zbl 1509.78005 Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 69, 166-173 (1980). MSC: 78A60 35L77 PDFBibTeX XMLCite \textit{P. Bassanini} and \textit{L. Cesari}, Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 69, 166--173 (1980; Zbl 1509.78005) Full Text: Link
Matsuuchi, Kazuo Nonlinear interactions of counter-travelling waves. (English) Zbl 1334.35246 J. Phys. Soc. Japan 48, No. 5, 1746-1754 (1980). MSC: 35Q35 35L70 PDFBibTeX XMLCite \textit{K. Matsuuchi}, J. Phys. Soc. Japan 48, No. 5, 1746--1754 (1980; Zbl 1334.35246) Full Text: DOI
Zakharov, V. E.; Schulman, E. I. Degenerative dispersion laws, motion invariants and kinetic equations. (English) Zbl 1194.37162 Physica D 1, No. 2, 192-202 (1980). MSC: 37N10 35L70 35Q20 76B15 PDFBibTeX XMLCite \textit{V. E. Zakharov} and \textit{E. I. Schulman}, Physica D 1, No. 2, 192--202 (1980; Zbl 1194.37162) Full Text: DOI
Kaup, D. J. The inverse scattering solution for the full three dimensional three-wave resonant interaction. (English) Zbl 1194.35372 Physica D 1, No. 1, 45-67 (1980). MSC: 35Q53 35Q20 35L67 76B15 PDFBibTeX XMLCite \textit{D. J. Kaup}, Physica D 1, No. 1, 45--67 (1980; Zbl 1194.35372) Full Text: DOI
Zhu, Youlan; Zhong, Xichang; Chen, Bingmu; Zhang, Zuomin Difference methods for initial-boundary value problems and flow around bodies. (Chinese) Zbl 0604.76049 Chuncui Shuxue yu Yingyong Shuxue Zhuanzhu (Series of Monographs in Pure and Applied Mathematics), 4. Beijing, China: Science Press. IV, 629 p. (1980). MSC: 76H05 76-02 76L05 76M20 PDFBibTeX XML
Cesari, Lamberto Hyperbolic problems: Existence and applications. (English) Zbl 0586.35067 Differential equations, Proc. 8th Fall Conf., Okla. State Univ. 1979, 1-21 (1980). MSC: 35L75 47F05 35L05 35B05 35A05 PDFBibTeX XML
Wang, Jinghua Decay of solutions of a conservation law. (English) Zbl 0585.35063 Kexue Tongbao, Foreign Lang. Ed. 25, 537-542 (1980). MSC: 35L65 35L67 35B40 PDFBibTeX XMLCite \textit{J. Wang}, Kexue Tongbao, Sci. Bull. 25, 537--542 (1980; Zbl 0585.35063)
Vladimirov, V. A. Group properties of a system of differential equations of the second order. (Russian) Zbl 0579.35040 Non-linear boundary value problems, Collect. sci. Works, Kiev 1980, 141-145 (1980). Reviewer: W.Sadkowski MSC: 35L10 43A80 22E70 PDFBibTeX XML
[Mandai, Takeshi; Yoshikawa, Atsushi; Taniguchi, Kazuo; Nakane, Shizuo; Wakabayashi, Sei-ichirō; Qi, Min You; Hasegawa, Yukiko; Urabe, Ji-ichirō; Tahara, Hidetoshi; Ōuchi, Tadashi] Linear and nonlinear partial differential equations. Proceedings of a Symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto, March 17-19, 1980. (Japanese) Zbl 0563.35002 RIMS Kôkyûroku, 402. Kyoto: Kyoto University, Research Institute for Mathematical Sciences. II, 162 p. (1980). MSC: 35-06 00B25 35A20 35B45 35L05 35S05 35A05 35M99 PDFBibTeX XML
[Miyatake, Sadao; Tarama, Shigeo; Tahara, Hidetoshi; Ichinose, Wataru; Komatsu, Gen; Iwasaki, Nobuhisa; Iwasaki, Chisato; Suzuki, Takashi; Murayama, Reiji; Taira, Kazuaki; Yoshihara, Hideaki; Simizu, Nobutaka] Studies in the structure of solutions of partial differential equations. Proceedings of a Symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto, November 5-7, 1979. (Japanese) Zbl 0563.35001 RIMS Kôkyûroku, 376. Kyoto: Kyoto University, Research Institute for Mathematical Sciences. II, 162 p. (1980). MSC: 35-06 35A20 00B25 35B05 47D03 35L40 35A08 35A10 PDFBibTeX XML
[Noumi, Masatoshi; Uchikoshi, Keisuke; Ishii, Tadashi; Fujimoto, Yoshihisa; Morimoto, Mitsuo; Kawai, Takahiro; Kataoka, Kiyōmi; Aoki, Takashi; Komatsu, Hikosaburō; Mulase, Motohiko; Yano, Tamaki] Microfunctions and linear differential equations. VII. Proceedings of a Symposium held at the Research Institute for Mathematical Sciences, Kyoto University, Kyoto, March 24-26, 1980. (Japanese) Zbl 0562.46025 RIMS Kôkyûroku, 410. Kyoto: Kyoto University, Research Institute for Mathematical Sciences. II, 153 p. (1980). MSC: 46F15 46-06 35-06 58-06 58C07 PDFBibTeX XML
Samarskij, A. A.; Makarov, V. L. Application of exact difference schemes to the estimation of the convergence rate of the method of straight lines. (Russian. English summary) Zbl 0558.65086 Dokl., Semin. Inst. Prikl. Mat. 14, 18-23 (1980). MSC: 65N40 65L10 35L70 35L20 34G10 PDFBibTeX XML
Zhukov, A. F. On a sufficient condition for the solvability of the Cauchy problem for a nonlinear wave equation. (Russian) Zbl 0549.35082 Tr. Mosk. Ehnerg. Inst. 499, 5-10 (1980). MSC: 35L70 35A05 PDFBibTeX XML
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 PDFBibTeX XML
Budak, B. M.; Samarskij, A. A.; Tikhonov, A. N. A collection of problems in mathematical physics. (Sbornik zadach po matematicheskoj fizike). 3rd ed. (Russian) Zbl 0544.35002 Moskva: Izdat. “Nauka”. 686 p. R. 1.70 (1980). MSC: 35-01 35J15 35K10 35L10 35Axx PDFBibTeX XML
Renno, Pasquale On the fundamental solution of a hyperbolic operator in three-dimensional thermochemistry. (Italian. English summary) Zbl 0543.35009 Rend. Accad. Naz. Sci. Detta XL, V. Ser., Mem. Mat. 4, 43-62 (1980). MSC: 35E05 35L30 35B40 35C05 35B25 35B50 74A15 80A30 PDFBibTeX XMLCite \textit{P. Renno}, Rend. Accad. Naz. Sci. Detta XL, V. Ser., Mem. Mat. 4, 43--62 (1980; Zbl 0543.35009)
Romanov, V. G. Inverse problems and energy inequalities. (Russian) Zbl 0538.35075 Partial differential equations: differential equations and numerical mathematics, Work Collect. Conf., Novosibirsk 1978, 148-153 (1980). Reviewer: V.Isakov MSC: 35R30 35L15 35K15 35B45 PDFBibTeX XML
Kobayashi, Toshihiro Discrete-time controllability for disturbed parameter systems. (English) Zbl 0537.93011 Int. J. Syst. Sci. 11, 1063-1074 (1980). MSC: 93B05 93C20 93C05 93B03 35B37 35G10 35K25 35L10 93C55 93C57 PDFBibTeX XMLCite \textit{T. Kobayashi}, Int. J. Syst. Sci. 11, 1063--1074 (1980; Zbl 0537.93011) Full Text: DOI
Liu, Yutian; Xu, Mengjie The finite element analysis for nonlinear conservative hyperbolic equation. (Chinese. English summary) Zbl 0537.65082 Numer. Math., Nanjing 2, No. 2, 55-64 (1980). MSC: 65N30 65N15 35L60 PDFBibTeX XMLCite \textit{Y. Liu} and \textit{M. Xu}, Numer. Math., Nanjing 2, No. 2, 55--64 (1980; Zbl 0537.65082)
Ganiev, S. The Cauchy problem for a model fourth order equation of hyperbolic type with a singular line. (Russian) Zbl 0535.35058 Differ. Integral. Uravn., Dushanbe, 3, 84-90 (1980). Reviewer: Vesselin Petkov (Bordeaux) MSC: 35L80 35L30 PDFBibTeX XML
Vulkov, L. G. The entropy condition for a hyperbolic system of three nonlinear equations. (Bulgarian. English, Russian summaries) Zbl 0532.73043 God. Vissh. Uchebn. Zaved., Prilozh. Mat. 15(1979), No. 2, 175-180 (1980). MSC: 74D99 35L60 PDFBibTeX XMLCite \textit{L. G. Vulkov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 15, No. 2, 175--180 (1980; Zbl 0532.73043)
Emmanuele, Giovanni A remark about a problem of relative minimum for a control process with distributed parameters. (Italian) Zbl 0526.49017 Matematiche 35, 199-210 (1980). MSC: 49K20 35L20 49K30 35B37 35L15 46E35 93C20 PDFBibTeX XMLCite \textit{G. Emmanuele}, Matematiche 35, 199--210 (1980; Zbl 0526.49017)
Gotovtsev, I. B.; Slukhaev, V. V. Some invariants of systems of quasi-linear partial differential equations. (Russian) Zbl 0523.35074 Geom. Sb. 21, 108-112 (1980). MSC: 35L60 35L40 58A17 35E20 PDFBibTeX XMLCite \textit{I. B. Gotovtsev} and \textit{V. V. Slukhaev}, Geom. Sb. 21, 108--112 (1980; Zbl 0523.35074)
Airapetyan, R. G. On the weak correctness of mixed problems for hyperbolic systems. (Russian) Zbl 0523.35071 Dokl. Akad. Nauk Arm. SSR 70, 205-211 (1980). MSC: 35L50 35L45 35S99 35B45 46E35 35A22 PDFBibTeX XMLCite \textit{R. G. Airapetyan}, Dokl., Akad. Nauk Arm. SSR 70, 205--211 (1980; Zbl 0523.35071)
Barugola, Alexandre Détermination de la frontière d’une ”zone absorbante” rélative à une recurrence du deuxième ordre, à inverse non unique. (French) Zbl 0522.58036 C. R. Acad. Sci., Paris, Sér. B 290, 257-260 (1980). MSC: 37D45 26B99 39A10 PDFBibTeX XMLCite \textit{A. Barugola}, C. R. Acad. Sci., Paris, Sér. B 290, 257--260 (1980; Zbl 0522.58036)
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 PDFBibTeX XMLCite \textit{G. R. Oganesyan}, Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 15, No. 4, 43--99 (1980; Zbl 0512.35052)
Duvaut, Georges; Lions, Jacques-Louis Inequalities in mechanics and physics. (Neravenstva v mekhanike i fizike). Transl. from the French by S. Yu. Prishchepionok i. T. N. Rozhkovskaya. (Russian) Zbl 0508.73001 Moskva: “Nauka”. 384 p. (1980). MSC: 74-02 35-02 74B05 35A15 35B45 35Gxx 35Jxx 35Kxx 35Lxx 49S05 76A05 74A15 74F10 74D99 74K20 74C99 74F15 49J40 PDFBibTeX XML
Ewing, Richard E. On efficient time-stepping methods for nonlinear partial differential equations. (English) Zbl 0508.65050 Comput. Math. Appl. 6, 1-13 (1980). MSC: 65N30 65N15 35L70 PDFBibTeX XMLCite \textit{R. E. Ewing}, Comput. Math. Appl. 6, 1--13 (1980; Zbl 0508.65050) Full Text: DOI
Cinquini, Silvio Sopra la riduzione a forma caratteristica dei sistemi di equazioni a derivate parziali di tipo iperbolico. (Italian) Zbl 0508.35007 Atti Accad. Sci. Ist. Bologna, Cl. Sci. Fis., Anno 268, Rend., XIII, Ser. 7, No. 1, 123-132 (1980). MSC: 35A30 35L60 35M99 35L40 PDFBibTeX XML
Kipriyanov, I. A.; Ivanov, L. A. Asymptotic properties of solutions for some singular Cauchy problems. (Russian) Zbl 0506.35077 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 90-93 (1980). MSC: 35P25 35L15 PDFBibTeX XML
Mikhajlov, K. I. Some boundary value problems for an equation of hyperbolic-parabolic type. (Bulgarian) Zbl 0505.35060 God. Vissh. Uchebn. Zaved., Prilozhna Mat. 15(1979), No. 2, 99-108 (1980). MSC: 35M99 35A05 35L80 PDFBibTeX XMLCite \textit{K. I. Mikhajlov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 15, No. 2, 99--108 (1980; Zbl 0505.35060)
Isaeva, N. M. On a hyperbolic system of equations. (Russian) Zbl 0505.35054 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 72-76 (1980). MSC: 35L55 35D05 35L20 PDFBibTeX XML
Jovanovic, Bosko S. L’ application de l’extrapolation de Richardson sur la solution numerique de l’equation \(\frac{\partial^2u}{\partial t^2}+\frac{\partial^2u}{\partial x^2}\). (Serbo-Croatian) Zbl 0504.65059 Mat. Vesn. 4(17)(32), 465-474 (1980). MSC: 65N22 35L20 PDFBibTeX XMLCite \textit{B. S. Jovanovic}, Mat. Vesn. 4(17)(32), 465--474 (1980; Zbl 0504.65059)
Vulkov, L. G. Existence of classical solutions for quasilinear nonhomogeneous hyperbolic systems. (Bulgarian) Zbl 0503.35053 God. Vissh. Uchebn. Zaved., Prilozh. Mat. 15(1979), No. 2, 167-174 (1980). MSC: 35L60 35A01 35A09 35L80 PDFBibTeX XMLCite \textit{L. G. Vulkov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 15, No. 2, 167--174 (1980; Zbl 0503.35053)
Ni, Xingtang Boundary value problems with three-characteristic supports for linear totally hyperbolic equation of the third order. (English) Zbl 0502.35057 Kexue Tongbao, Foreign. Lang. Ed. 25, 361-369 (1980). MSC: 35L35 35M99 35C05 35A05 PDFBibTeX XMLCite \textit{X. Ni}, Kexue Tongbao, Sci. Bull. 25, 361--369 (1980; Zbl 0502.35057)
Mawhin, Jean Semilinear equations of gradient type in Hilbert spaces and applications to differential equations. (English) Zbl 0501.47025 Rapp., Semin. Math. Appl. Mec., Univ. Cathol. Louvain 139, 10 p. (1980). MSC: 47J05 35L70 PDFBibTeX XML
Baillieul, J.; Brockett, Roger W.; Washburn, Robert B. Chaotic motion in nonlinear feedback systems. (English) Zbl 0499.93025 IEEE Trans. Circuits Syst. 27, 990-997 (1980). MSC: 93C10 37D45 93C55 39A11 37C75 37G99 PDFBibTeX XMLCite \textit{J. Baillieul} et al., IEEE Trans. Circuits Syst. 27, 990--997 (1980; Zbl 0499.93025) Full Text: DOI
Levkov, S. P. Some questions concerning the identification of a class of linear distributed objects. (Russian) Zbl 0498.93015 Adaptive control systems, Collect. Artic., Kiev 1980, 27-32 (1980). MSC: 93B30 93C20 35L40 PDFBibTeX XML
Kokoszkiewicz, A. An explicit difference scheme of solving the Cauchy problem for a degenerate hyperbolic equation. (English) Zbl 0498.65046 Numerical methods, Keszthely 1977, Colloq. Math. Soc. Janos Bolyai 22, 417-421 (1980). MSC: 65M12 65M06 35L15 35L80 PDFBibTeX XML
Ushiki, Shigehiro On unstable manifolds of analytic diffeomorphisms of the plane. (English) Zbl 0498.58016 Singularities of differentiable mappings, Proc. Symp. Res. Inst. Math. Sci., Kyoto Univ. 1980, RIMS Kokyuroku 403, 1-7 (1980). MSC: 37D99 57N05 34M99 PDFBibTeX XML
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 PDFBibTeX XML
Katyshev, V. V. On a class of nonlinear hyperbolic-parabolic equations. (Russian) Zbl 0498.35059 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 83-85 (1980). MSC: 35M99 35L80 35D05 35L70 PDFBibTeX XML
Fedotov, V. P. Extremum principle for a system of equations. (English) Zbl 0498.35057 Differ. Equations 16, 426-429 (1980). MSC: 35M99 35B50 PDFBibTeX XMLCite \textit{V. P. Fedotov}, Differ. Equations 16, 426--429 (1980; Zbl 0498.35057)
Bryukhanov, V. A. On the Cauchy problem for a class of degenerate second order hyperbolic equations. (Russian) Zbl 0497.35059 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 38-44 (1980). MSC: 35L80 35L15 35A05 42A38 PDFBibTeX XML
Nishitani, Tatsuo The Cauchy problem for weakly hyperbolic equations of second order. (English) Zbl 0497.35053 Commun. Partial Differ. Equations 5, 1273-1296 (1980). MSC: 35L15 35L30 PDFBibTeX XMLCite \textit{T. Nishitani}, Commun. Partial Differ. Equations 5, 1273--1296 (1980; Zbl 0497.35053) Full Text: DOI
Onysyk, S. B. Optimal control over a class of objects with distributed parameters. (Russian) Zbl 0496.93037 Adaptive control systems, Collect. Artic., Kiev 1980, 33-36 (1980). MSC: 93C20 49J20 35L40 PDFBibTeX XML
Meredov, M. On some problems for a system of hyperbolic equations. (Russian) Zbl 0496.35057 Correct boundary value problems for non-classical equations of mathematical physics, Collect.Artic., Novosibirsk 1980, 135-139 (1980). MSC: 35L35 35D05 PDFBibTeX XML
Procopiuc, Gh. Theorem of existence and uniqueness in relativistic radiative hydrodynamics. (English) Zbl 0495.76118 Bul. Inst. Politeh. Iași, Secț. I 26(30), 103-111 (1980). MSC: 76Y05 35A05 83C55 35L20 PDFBibTeX XMLCite \textit{Gh. Procopiuc}, Bul. Inst. Politeh. Iași, Secț. I 26(30), No. 1--2, 103--111 (1980; Zbl 0495.76118)
Tarsi Santolini, A. Soluzione globale di un problema di controllo per un sistema iperbolico. (Italian) Zbl 0495.49003 Riv. Mat. Univ. Parma, IV. Ser. 6, 239-252 (1980). MSC: 49J20 49J45 35L45 93C20 PDFBibTeX XMLCite \textit{A. Tarsi Santolini}, Riv. Mat. Univ. Parma, IV. Ser. 6, 239--252 (1980; Zbl 0495.49003)
Khe Kan Cher The Cauchy-Goursat problem for a degenerate hyperbolic equation. (Russian) Zbl 0495.35057 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 168-172 (1980). MSC: 35L80 35C15 35L15 PDFBibTeX XML
Nayfeh, Ali H. A comparison of perturbation methods for nonlinear hyperbolic waves. (English) Zbl 0495.35010 Singular perturbations and asymptotics, Proc. adv. Semin., Madison/ Wis. 1980, 223-276 (1980). MSC: 35B40 35B20 35L60 PDFBibTeX XML
Kostin, V. I. On symmetrization of hyperbolic operators. (Russian) Zbl 0494.35060 Correct boundary value problems for non-classical equations of mathematical physics, Collect. Artic., Novosibirsk 1980, 112-116 (1980). MSC: 35L25 PDFBibTeX XML
Bagchi, S. N. Fundamental equations of classical and of quantum physics as special cases of a nonlinear equation. (English) Zbl 0494.35027 Lect. Notes Phys. 120, 338-362 (1980). MSC: 35G20 35L10 81P05 81T20 PDFBibTeX XML
Smiley, Michael W. Results on linear and nonlinear hyperbolic boundary value problems at resonance. (English) Zbl 0492.35050 Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 69, 327-332 (1980). MSC: 35L75 35D05 26B10 35L35 35B20 PDFBibTeX XMLCite \textit{M. W. Smiley}, Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 69, 327--332 (1980; Zbl 0492.35050)
Krbila, Jaroslav A class of purely and specially disconjugated differential equations y”+qy=0. (Russian) Zbl 0492.34026 Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 3, 104-112 (1980). MSC: 34C10 PDFBibTeX XMLCite \textit{J. Krbila}, Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 3, 104--112 (1980; Zbl 0492.34026)
Marovcik, Jozef Comparison theorems in the theory of hyperbolic phases of the non- oscillatory differential equation y”+q(t)y=0. (Slovak) Zbl 0489.34033 Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 3, 113-119 (1980). MSC: 34C11 PDFBibTeX XMLCite \textit{J. Marovcik}, Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 3, 113--119 (1980; Zbl 0489.34033)
Kaptsov, O. V. Defining equations of conservation laws for evolutionary equations. (Russian) Zbl 0488.35058 Dinamika Zhidkosti so Svobodnymi Granitsami, Din. Sploshnoj Sredy 46, 46-57 (1980). MSC: 35L65 35L75 PDFBibTeX XMLCite \textit{O. V. Kaptsov}, Din. Splosh. Sredy 46, 46--57 (1980; Zbl 0488.35058)
Korobejnik, Yu. F.; Dedushev, A. V. A solution of the mixed problem by the Fourier method. (Russian) Zbl 0488.35051 Izv. Sev.-Kavk. Nauchn. Tsentr. Vyssh. Shk., Estestv. Nauki 1980, No. 1(29), 11-16 (1980). MSC: 35L20 35C10 35A05 PDFBibTeX XMLCite \textit{Yu. F. Korobejnik} and \textit{A. V. Dedushev}, Izv. Sev.-Kavk. Nauchn. Tsentra Vyssh. Shk., Estestv. Nauki 1980, No. 1(29), 11--16 (1980; Zbl 0488.35051)
Marchuk, N. G. On the existence of solutions of a mixed problem for the vector wave equation. (English. Russian original) Zbl 0488.35050 Sov. Math., Dokl. 21, 785-788 (1980); translation from Dokl. Akad. Nauk SSSR 252, 546-549 (1980). MSC: 35L20 35L05 35L50 PDFBibTeX XMLCite \textit{N. G. Marchuk}, Sov. Math., Dokl. 21, 785--788 (1980; Zbl 0488.35050); translation from Dokl. Akad. Nauk SSSR 252, 546--549 (1980)
Lar’kin, N. A. The influence of boundary value conditions and of the right side on the solvability of the mixed problem for a class of degenerate hyperbolic equations. (Russian) Zbl 0488.35011 Dinamika Neodnorodnoj Zhidkosti, Din. Sploshnoj Sredy 44, 49-60 (1980). MSC: 35B30 35L80 35L20 PDFBibTeX XMLCite \textit{N. A. Lar'kin}, Din. Splosh. Sredy 44, 49--60 (1980; Zbl 0488.35011)
Spiegel, E. A. A class of ordinary differential equations with strange attractors. (English) Zbl 0487.58015 Nonlinear dynamics, int. Conf., New York 1979, Ann. N.Y. Acad. Sci. 357, 305-312 (1980). MSC: 37D45 37J99 37G99 37J40 PDFBibTeX XML
Ruelle, David Strange attractors. (English) Zbl 0487.58014 Math. Intell. 2, 126-140 (1980). MSC: 37D45 00A06 PDFBibTeX XMLCite \textit{D. Ruelle}, Math. Intell. 2, 126--140 (1980; Zbl 0487.58014) Full Text: DOI
Uzakov, M. On some singular mixed problems for a quasilinear equation of a string. (Russian) Zbl 0487.35062 Functional methods in equations of mathematical physics, Work Collect., Moskva 1980, 72-74 (1980). MSC: 35L70 35A05 PDFBibTeX XML
Gamby, D. Applications and improvements of the summed progressing wave formalism. (English) Zbl 0486.73021 Q. Appl. Math. 38, 159-168 (1980). MSC: 74J99 35L05 45K05 35M99 PDFBibTeX XMLCite \textit{D. Gamby}, Q. Appl. Math. 38, 159--168 (1980; Zbl 0486.73021) Full Text: DOI
Smale, S. On the problem of reviving the ergodic hypothesis of Boltzmann and Birkhoff. (English) Zbl 0486.58014 Nonlinear dynamics, int. Conf., New York 1979, Ann. N. Y. Acad. Sci. 357, 260-266 (1980). MSC: 37J99 37A99 70H05 37J40 37C75 37D45 PDFBibTeX XML
Muradov, R. I.; Gasanov, M. G. Generalized solution of a degenerating integro-differential equation of hyperbolic type. (Russian) Zbl 0486.45006 Izv. Akad. Nauk Az. SSR, Ser. Fiz.- Tekh. Mat. Nauk 1980, No. 6, 37-43 (1980). MSC: 45K05 46F99 PDFBibTeX XMLCite \textit{R. I. Muradov} and \textit{M. G. Gasanov}, Izv. Akad. Nauk Az. SSR, Ser. Fiz.-Tekh. Mat. Nauk 1980, No. 6, 37--43 (1980; Zbl 0486.45006)
Nath, Prem; Anand, Ranjna Sine and hyperbolic functional equations on groups. (English) Zbl 0486.39003 Bull. Calcutta Math. Soc. 72, 276-286 (1980). MSC: 39B52 39B99 PDFBibTeX XMLCite \textit{P. Nath} and \textit{R. Anand}, Bull. Calcutta Math. Soc. 72, 276--286 (1980; Zbl 0486.39003)
Kipriyanov, I. A.; Ivanov, L. A. Herglotz-Petrovskij formulas for a class of equations with singularities. (Russian) Zbl 0486.35003 Partial differential equations: differential equations and numerical mathematics, Work Collect. Conf., Novosibirsk 1978, 131-133 (1980). MSC: 35A08 35A20 35L25 PDFBibTeX XML
Serdyukova, S. I. On the attainability of the minimum order of error in integrating hyperbolic equations by the finite-difference method in the uniform metric. (English. Russian original) Zbl 0485.65061 Sov. Math., Dokl. 22, 845-848 (1980); translation from Dokl. Akad. Nauk SSSR 255, 1325-1328 (1980). MSC: 65M15 65M06 35F10 PDFBibTeX XMLCite \textit{S. I. Serdyukova}, Sov. Math., Dokl. 22, 845--848 (1980; Zbl 0485.65061); translation from Dokl. Akad. Nauk SSSR 255, 1325--1328 (1980)
Strocchi, Franco Classificazione delle soluzioni di equazioni iperboliche non lineari ed equazioni ellittiche non lineari. (Italian) Zbl 0485.35065 Rend. Sem. Mat. Fis. Milano 50, 73-85 (1980). MSC: 35L70 35J60 PDFBibTeX XMLCite \textit{F. Strocchi}, Rend. Semin. Mat. Fis. Milano 50, 73--85 (1980; Zbl 0485.35065) Full Text: DOI
Fusco, Domenico Alcune considerazioni su una classe di sistemi del primo ordine quasi- lineari conservativi ed iperbolici di due equazioni in due variabili indipendenti. (Italian) Zbl 0485.35062 Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 69, 386-398 (1980). MSC: 35L67 35L65 35L60 PDFBibTeX XMLCite \textit{D. Fusco}, Atti Accad. Naz. Lincei, VIII. Ser., Rend., Cl. Sci. Fis. Mat. Nat. 69, 386--398 (1980; Zbl 0485.35062)
Bakhvalov, N. S. Averaging the process of the propagation of short waves in periodic media. (Russian) Zbl 0484.73024 Theory of cubature formulas and numerical mathematics, Pap. Conf. Differential equations and numerical mathematics, Novosibirsk 1978, 3-11 (1980). MSC: 74J99 35A35 35L55 35R05 74E10 PDFBibTeX XML Full Text: EuDML
Cherednichenko, R. A. Numerical investigation of a process of forming wave fronts in an elastic half-space affected by surface stresses. (Russian) Zbl 0484.73017 Mat. Issled. 57, 128-132 (1980). MSC: 74J15 65M60 35L45 65M99 65N99 PDFBibTeX XMLCite \textit{R. A. Cherednichenko}, Mat. Issled. 57, 128--132 (1980; Zbl 0484.73017)
Brézis, Haïm; Coron, Jean-Michel; Nirenberg, Louis Free vibrations for a nonlinear wave equation and a theorem of P. Rabinowitz. (English) Zbl 0484.35057 Commun. Pure Appl. Math. 33, 667-684 (1980). MSC: 35L70 35B10 PDFBibTeX XMLCite \textit{H. Brézis} et al., Commun. Pure Appl. Math. 33, 667--684 (1980; Zbl 0484.35057) Full Text: DOI
Yagdzhyan, K. A. Correctness of the Cauchy problem for weakly hyperbolic equations. (English) Zbl 0484.35053 Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 15, No. 6, 54-65 (1980). MSC: 35L15 35A05 35B30 PDFBibTeX XMLCite \textit{K. A. Yagdzhyan}, Sov. J. Contemp. Math. Anal., Arm. Acad. Sci. 15, No. 6, 54--65 (1980; Zbl 0484.35053)
Kipriyanov, I. A.; Ivanov, L. A. Hadamard’s method for some classes of hyperbolic equations. (English. Russian original) Zbl 0483.35070 Sov. Math., Dokl. 21, 864-867 (1980); translation from Dokl. Akad. Nauk SSSR 252, 1045-1048 (1980). MSC: 35Q05 35L10 35B30 PDFBibTeX XMLCite \textit{I. A. Kipriyanov} and \textit{L. A. Ivanov}, Sov. Math., Dokl. 21, 864--867 (1980; Zbl 0483.35070); translation from Dokl. Akad. Nauk SSSR 252, 1045--1048 (1980)
Ivrij, V. Ya. An extension of singularities of solutions of symmetric hyperbolic systems. (Russian) Zbl 0483.35052 Partial differential equations: differential equations and numerical mathematics, Work Collect. Conf., Novosibirsk 1978, 122-128 (1980). MSC: 35L67 35L45 35A30 PDFBibTeX XML
Yoshikawa, Atsushi Parametrices for a class of effectively hyperbolic operators. (English) Zbl 0483.35048 Commun. Partial Differ. Equations 5, 1073-1151 (1980). MSC: 35L15 35S10 PDFBibTeX XMLCite \textit{A. Yoshikawa}, Commun. Partial Differ. Equations 5, 1073--1151 (1980; Zbl 0483.35048) Full Text: DOI
Mamontov, E. V. Correctness of problems of mathematical physics. Textbook. (O korrektnosti zadach matematicheskoj fiziki. Uchebnoe posobie). (Russian) Zbl 0483.35001 Ministerstvo Vysshego i Srednego Spetsial’nogo Obrazovaniya RSFSR. Novosibirsk: Novosibirskij Gosudarstvennyj Universitet. 63 p. R. 0.20 (1980). MSC: 35-01 35R25 35L05 35M99 35A05 35B30 35C20 PDFBibTeX XML
Ruggeri, Tommaso Interaction between a discontinuity wave and a shock wave: critical time for the fastest transmitted wave, example of the polytropic fluid. (English) Zbl 0482.76062 Appl. Anal. 11, 103-112 (1980). MSC: 76L05 76N15 35L67 PDFBibTeX XMLCite \textit{T. Ruggeri}, Appl. Anal. 11, 103--112 (1980; Zbl 0482.76062) Full Text: DOI
Tarnai, T. Existence and uniqueness criteria of the membrane state of shells. I. Hyperbolic shells. (English) Zbl 0482.73045 Acta Tech. Acad. Sci. Hung. 91, 81-110 (1980). MSC: 74K15 74G30 74H25 35L99 35J05 PDFBibTeX XMLCite \textit{T. Tarnai}, Acta Tech. Acad. Sci. Hung. 91, 81--110 (1980; Zbl 0482.73045)
Feigenbaum, Mitchell J. The metric universal properties of period doubling bifurcations and the spectrum for a route to turbulence. (English) Zbl 0482.58021 Nonlinear dynamics, int. Conf., New York 1979, Ann. N.Y. Acad. Sci. 357, 330-336 (1980). MSC: 37G99 70K50 76F99 37D45 34C15 PDFBibTeX XML
Bitsadze, A. V. On exact solutions of a version of the gravitational field equations. (English. Russian original) Zbl 0482.35056 Sov. Math., Dokl. 22, 53-54 (1980); translation from Dokl. Akad. Nauk SSSR 253, 266-267 (1980). MSC: 35L70 83C99 35C99 PDFBibTeX XMLCite \textit{A. V. Bitsadze}, Sov. Math., Dokl. 22, 53--54 (1980; Zbl 0482.35056); translation from Dokl. Akad. Nauk SSSR 253, 266--267 (1980)
Favorin, V. M. On the behavior as \(t \to \infty\) of the solution of the second mixed problem for the three-dimensional wave equation in a domain that is cylindrical with respect to the space variables. (English. Russian original) Zbl 0482.35016 Sov. Math., Dokl. 21, 956-959 (1980); translation from Dokl. Akad. Nauk SSSR 252, 1333-1336 (1980). MSC: 35B40 35L05 35L15 35L20 PDFBibTeX XMLCite \textit{V. M. Favorin}, Sov. Math., Dokl. 21, 956--959 (1980; Zbl 0482.35016); translation from Dokl. Akad. Nauk SSSR 252, 1333--1336 (1980)
Shafiev, N. K. Asymptotics with respect to a small parameter of the solution of a mixed problem for a hyperbolic equation. (English. Russian original) Zbl 0482.35008 Sov. Math., Dokl. 21, 899-903 (1980); translation from Dokl. Akad. Nauk SSSR 252, 1074-1078 (1980). MSC: 35B20 35L35 35L80 35K35 35A35 PDFBibTeX XMLCite \textit{N. K. Shafiev}, Sov. Math., Dokl. 21, 899--903 (1980; Zbl 0482.35008); translation from Dokl. Akad. Nauk SSSR 252, 1074--1078 (1980)
Bampi, F.; Morro, A. Viscous fluids with hidden variables and hyperbolic systems. (English) Zbl 0481.76072 Wave Motion 2, 153-157 (1980). MSC: 76L05 76A99 35L60 PDFBibTeX XMLCite \textit{F. Bampi} and \textit{A. Morro}, Wave Motion 2, 153--157 (1980; Zbl 0481.76072) Full Text: DOI
Fedotov, V. P. Das Extremumprinzip für ein gewisses Gleichungssystem. (Russian) Zbl 0481.35067 Differ. Uravn. 16, 679-683 (1980). MSC: 35M99 35B50 PDFBibTeX XMLCite \textit{V. P. Fedotov}, Differ. Uravn. 16, 679--683 (1980; Zbl 0481.35067)
Rassias, John Michael A new bi-hyperbolic boundary value problem in the Euclidean space. (English) Zbl 0481.35053 Bull. Acad. Pol. Sci., Sér. Sci. Math. 28, 565-568 (1980). MSC: 35L20 35L80 35A30 PDFBibTeX XMLCite \textit{J. M. Rassias}, Bull. Acad. Pol. Sci., Sér. Sci. Math. 28, 565--568 (1980; Zbl 0481.35053)
Airapetyan, R. G. On conditions of correctness of the mixed problem for a strongly hyperbolic operator in the case of breaking the Lopatinskii condition. (Russian) Zbl 0481.35051 Partial differential equations: differential equations and numerical mathematics, Work Collect. Conf., Novosibirsk 1978, 3-7 (1980). MSC: 35L10 35A01 35A02 35B30 PDFBibTeX XML
Citrini, Claudio The vibrating string with pointshaped obstacle. (English) Zbl 0481.35050 Free boundary problems, Proc. Semin. Pavia 1979, Vol. II, 141-146 (1980). MSC: 35L05 35L20 35A30 35A05 PDFBibTeX XML
Rassias, John Michael New uniqueness theorems. (English) Zbl 0481.35049 Bull. Acad. Pol. Sci., Sér. Sci. Math. 28, 569-571 (1980). MSC: 35L05 35A30 35L20 35A05 PDFBibTeX XMLCite \textit{J. M. Rassias}, Bull. Acad. Pol. Sci., Sér. Sci. Math. 28, 569--571 (1980; Zbl 0481.35049)
Li, Daqian On a free boundary problem. (English) Zbl 0479.35075 Chin. Ann. Math. 1, 351-358 (1980). MSC: 35R35 35L60 76J20 PDFBibTeX XMLCite \textit{D. Li}, Chin. Ann. Math. 1, 351--358 (1980; Zbl 0479.35075)
Lorenz, Edward N. Noisy periodicity and reverse bifurcation. (English) Zbl 0478.58015 Nonlinear dynamics, int. Conf., New York 1979, Ann. N.Y. Acad. Sci. 357, 282-291 (1980). MSC: 37D45 37N99 37G99 86A10 76U05 PDFBibTeX XML
Marsden, Jerrold; Holmes, Philip A horseshoe in the dynamics of a forced beam. (English) Zbl 0478.58012 Nonlinear dynamics, int. Conf., New York 1979, Ann. N.Y. Acad. Sci. 357, 313-321 (1980). MSC: 37J99 37D45 37J40 74G60 74H55 PDFBibTeX XML
Gorniewicz, Lech; Pruszko, Tadeusz On the set of solutions of the Darboux problem for some hyperbolic equations. (English) Zbl 0478.35076 Bull. Acad. Pol. Sci., Sér. Sci. Math. 28, 279-285 (1980). MSC: 35Q05 47H10 35L70 54H25 55M25 PDFBibTeX XMLCite \textit{L. Gorniewicz} and \textit{T. Pruszko}, Bull. Acad. Pol. Sci., Sér. Sci. Math. 28, 279--285 (1980; Zbl 0478.35076)
Kamaev, D. A. Hyperbolic limit sets of a class of parabolic equations and Galerkin’s method. (English. Russian original) Zbl 0478.35057 Sov. Math., Dokl. 22, 344-348 (1980); translation from Dokl. Akad. Nauk SSSR 254, 282-286 (1980). MSC: 35K55 37-XX 35K10 46E20 46E35 35A35 PDFBibTeX XMLCite \textit{D. A. Kamaev}, Sov. Math., Dokl. 22, 344--348 (1980; Zbl 0478.35057); translation from Dokl. Akad. Nauk SSSR 254, 282--286 (1980)
Avagyan, S. G. Some problems of penetration of bodies into a ponderable fluid. (Russian) Zbl 0477.76064 Izv. Akad. Nauk Arm. SSR, Mekh. 33, No. 6, 43-53 (1980). MSC: 76N99 70E15 44A10 35L15 35L20 58J45 PDFBibTeX XMLCite \textit{S. G. Avagyan}, Izv. Akad. Nauk Arm. SSR, Mekh. 33, No. 6, 43--53 (1980; Zbl 0477.76064)
Nazhestkina, Eh. I.; Rusanov, V. V. Approximation of boundary conditions in difference schemes. (English. Russian original) Zbl 0477.65069 U.S.S.R. Comput. Math. Math. Phys. 20, No. 6, 117-133 (1980); translation from Zh. Vychisl. Mat. Mat. Fiz. 20, 1483-1499 (1980). MSC: 65N06 65N12 35L60 PDFBibTeX XMLCite \textit{Eh. I. Nazhestkina} and \textit{V. V. Rusanov}, U.S.S.R. Comput. Math. Math. Phys. 20, No. 6, 117--133 (1980; Zbl 0477.65069); translation from Zh. Vychisl. Mat. Mat. Fiz. 20, 1483--1499 (1980) Full Text: DOI
Kholodov, A. S. The construction of difference schemes of increased order of accuracy for equations of hyperbolic type. (English. Russian original) Zbl 0477.65065 U.S.S.R. Comput. Math. Math. Phys. 20, No. 6, 234-253 (1980); translation from Zh. Vychisl. Mat. Mat. Fiz. 20, 1601-1620 (1980). MSC: 65M25 35L60 PDFBibTeX XMLCite \textit{A. S. Kholodov}, U.S.S.R. Comput. Math. Math. Phys. 20, No. 6, 234--253 (1980; Zbl 0477.65065); translation from Zh. Vychisl. Mat. Mat. Fiz. 20, 1601--1620 (1980) Full Text: DOI
Wang, Chuanfang On discrete phenomena in the mixed problem. (Chinese) Zbl 0477.35060 Chin. Ann. Math. 1, 469-475 (1980). MSC: 35L80 35L10 35A05 PDFBibTeX XMLCite \textit{C. Wang}, Chin. Ann. Math. 1, 469--475 (1980; Zbl 0477.35060)