## Found 121 Documents (Results 1–100)

100
MathJax

### The optimal control problem for the elliptic equation. (English)Zbl 1420.49045

MSC:  49Q10 35J25 49K20
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### Nonoscillation of a second order linear delay differential equation with a middle term. (English)Zbl 1041.34053

MSC:  34K11 34K06

### Functional methods in the study of boundary value problems. (Metode funcţionale în studiul problemelor la limită.) (Romanian)Zbl 1115.46065

Monografii Matematice (Timișoara) 70. Timișoara: Universitatea de Vest din Timișoara, Facultatea de Matematică. 120 p. (1999).

### Asymptotic stability of traveling waves in solid-propellant combustion under thermal radiation. (English)Zbl 1010.80012

MSC:  80A25 35K20 35Q99
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### A canonical and P-stable SDIRKN method for nondissipative stiff problems. (Spanish)Zbl 1013.65074

Madaune-Tort, Monique (ed.) et al., Proceedings of the 5th Zaragoza-Pau conference on applied mathematics and statistics, Jaca, Spain, September 15-16, 1997. Zaragoza: Universidad de Zaragoza. Publ. Semin. Mat. García de Galdeano, Serie II. 20, 295-302 (1999).

### Weak convergence methods for semilinear elliptic equations. (English)Zbl 1059.35038

Singapore: World Scientific (ISBN 981-02-4076-7/hbk). xii, 234 p. (1999).

### Some extremal problems of disconjugacy. (Russian)Zbl 0991.34032

MSC:  34C10 34B15 49J15

### Asymptotic behaviour of solutions for nonlinear diffusion equation with periodic absorption. (English)Zbl 0987.35086

Chen, Hua (ed.) et al., Partial differential equations and their applications. Proceedings of the conference, Wuhan, China, April 5-9, 1999. Singapore: World Scientific. 305-308 (1999).

### Coefficient stability of differential-operator equations and operator-difference schemes. (English)Zbl 0980.65094

Iliev, O. P. (ed.) et al., Recent advances in numerical methods and applications. Proceedings of the 4th international conference, NMA ’98, Sofia, Bulgaria, August 19-23, 1998. Singapore: World Scientific. 87-98 (1999).

### Characterization of data in the dynamic inverse problem for a two-velocity system. (Russian. English summary)Zbl 0982.35120

J. Math. Sci., New York 109, No. 5, 1814-1834 (2002); translation from Zap. Nauchn. Semin. POMI 259, 19-45 (1999).
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MSC:  65L70

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### Convergence rate of the Galerkin method for a class of quasilinear operator differential equations. (English. Russian original)Zbl 0977.65053

Comput. Math. Math. Phys. 39, No. 9, 1455-1467 (1999); translation from Zh. Vychisl. Mat. Mat. Fiz. 39, No. 9, 1519-1531 (1999).

### Singularly perturbed second-order equation with small parameters multiplying the first and second derivatives. (English. Russian original)Zbl 0982.34047

Comput. Math. Math. Phys. 39, No. 9, 1441-1448 (1999); translation from Zh. Vychisl. Mat. Mat. Fiz. 39, No. 9, 1504-1512 (1999).

### On contrast structures of variable type. (English. Russian original)Zbl 0973.34048

Comput. Math. Math. Phys. 39, No. 5, 760-768 (1999); translation from Zh. Vychisl. Mat. Mat. Fiz. 39, No. 5, 792-800 (1999).
MSC:  34E15 34B15 34E13

### Renorming for elastic systems with structural damping. (English)Zbl 1012.74028

Chen, Shuping (ed.) et al., Control of distributed parameter and stochastic systems. Proceedings of the international conference (IFIP WG 7.2), Hangzhou, China, June 19-22, 1998. Boston, MA: Kluwer Academic Publishers. 31-38 (1999).
MSC:  74H99 47D03 34G10

### To the theory of two-point boundary value problems for second-order differential equations. (English. Russian original)Zbl 1006.34015

Differ. Equations 35, No. 10, 1391-1401 (1999); translation from Differ. Uravn. 35, No. 10, 1372-1381 (1999).
MSC:  34B15

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### Oscillation criteria for second-order linear differential equations. (Chinese. English summary)Zbl 0969.34028

MSC:  34C10 34A30

### Explicit representation of the scattering matrix of the one-dimensional Schrödinger operator. (English. Russian original)Zbl 0963.34074

Dokl. Math. 60, No. 1, 86-89 (1999); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 367, No. 5, 586-589 (1999).

### On invariant manifolds of finite-difference methods for second-order ordinary differential equations. (English. Russian original)Zbl 0966.65059

Dokl. Math. 59, No. 1, 81-82 (1999); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 364, No. 4, 455-456 (1999).
MSC:  65L12 34A34 65L20 34C30 37D10

### The estimates of error of projection method for an abstract quasilinear hyperbolic equation. (English. Russian original)Zbl 0988.65064

Russ. Math. 43, No. 5, 90-92 (1999); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1999, No. 5, 94-96 (1999).

### The problem of the vibration of a finite string with nonlinear perturbation. (English. Russian original)Zbl 1008.35043

Russ. Math. 43, No. 3, 14-19 (1999); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1999, No. 3, 17-21 (1999).

### On singular boundary value problems for a second-order linear functional-differential equation. (English. Russian original)Zbl 1007.34061

Russ. Math. 43, No. 2, 1-9 (1999); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1999, No. 2, 3-11 (1999).
MSC:  34K10 34K06

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### Oscillation criteria for second-order nonlinear neutral differential equations. (English)Zbl 0964.34056

MSC:  34K11 34K40

MSC:  34B15

### Conditional symmetry of quasilinear wave equation under the conformal algebra. (Ukrainian. English summary)Zbl 0949.35091

MSC:  35L70 58J70 35C05

### A remark on the half-linear extension of the Hartman-Wintner theorem. (English)Zbl 0971.34015

MSC:  34C10 34D10 34D05
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### Sobolev orthogonal polynomials: The discrete-continuous case. (English)Zbl 0980.42017

MSC:  42C05 33C45
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### Forced oscillations of a class of nonlinear delay hyperbolic equations. (English)Zbl 0947.35169

MSC:  35R10 35B05 35L70
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### Solution of solid mechanics problems with Neumann boundary conditions by the Itô calculus and simulation. (English)Zbl 0959.65011

Spanos, P. D. (ed.), Computational stochastic mechanics. Proceedings of the 3rd international conference (CSM’98) held on Santorini, Greece, June 14-17, 1998. Rotterdam: A. A. Balkema. 3-10 (1999).

MSC:  34A30

MSC:  34C10

### New possibilities for supersymmetry breakdown in quantum mechanics and second-order irreducible Darboux transformations. (English)Zbl 0949.81018

MSC:  81Q60 34L40
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### Second-order optimality conditions for semilinear elliptic control problems with constraints on the gradient of the state. (English)Zbl 0947.49019

Reviewer: U.Raitums (Riga)
MSC:  49K20 35J20 35J25

### Inverse spectral problem for the differential equation of the second order with singularity. (English)Zbl 0943.34010

Bainov, D. (ed.), Proceedings of the 9th international colloquium on differential equations, Plovdiv, Bulgaria, August 18-23, 1998. Utrecht: VSP. 7-14 (1999).
MSC:  34A55 34B24 34L05

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### Analytical and numerical study of a four-parameter family of mechanical oscillators. (English)Zbl 0963.70017

Reviewer: V.Sobolev (Samara)
MSC:  70K50 70K44
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MSC:  34A25
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### On the optimal shape of a Pflüger column. (English)Zbl 0978.74057

MSC:  74P10 74K10
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### Existence of smooth solutions of overdetermined elliptic differential equations in two independent variables. (English)Zbl 0953.35106

MSC:  35N10 35J15

### Disconjugacy and disfocality criteria for second order singular half-linear differential equations. (English)Zbl 1006.34027

MSC:  34C10 34B15
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MSC:  34G10
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### Initial and boundary value problems for singular differential equations and applications to the theory of cusped bars and plates. (English)Zbl 0943.35021

Begehr, Heinrich G. W. (ed.) et al., Complex methods for partial differential equations. Collection of manuscripts originating from talks and lectures given at the workshop on recent trends in complex methods for partial differential equations, Ankara, Turkey, July 6-10, 1998. Dordrecht: Kluwer Academic Publishers. Int. Soc. Anal. Appl. Comput. 6, 113-149 (1999).

### Existence and asymptotic behavior of positive solutions of second order quasilinear differential equations. (English)Zbl 1025.34043

MSC:  34D05 34A34

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### Partial differential equations. An introduction with Mathematica and MAPLE. (English)Zbl 0940.35001

Singapore: World Scientific. x, 297 p. (1999).

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### On equations with continuous mappings in Banach spaces. (English. Russian original)Zbl 0953.47043

Funct. Anal. Appl. 33, No. 1, 76-79 (1999); translation from Funkts. Anal. Prilozh. 33, No. 1, 87-92 (1999).
MSC:  47J05 47N10
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### A complex variable boundary element method for an exterior boundary value problem governed by an elliptic partial differential equation. (English)Zbl 0944.65120

MSC:  65N38 35J25

### Bounded solutions of nonlinear parabolic equations with time delay. (English)Zbl 0937.35081

MSC:  35K15 35R10 35K55
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### Regularity properties of Levi flat graphs. (English. Abridged French version)Zbl 0940.35053

MSC:  35G30 35B65 35D10
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### Approximation of stochastic Hammerstein integral equation with fractional Brownian motion input. (English)Zbl 0942.65008

MSC:  65C30 60H20 60H10
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### Oscillation and nonoscillation theorems for second order fuzzy differential equations. (English)Zbl 0937.34049

MSC:  34G20 34C10

### Variations of porosity in a sheared pressurized layer of saturated soil induced by vertical drainage of water. (English)Zbl 0964.76083

MSC:  76S05 86A05 86A40
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### Continuous symmetries of the discrete nonlinear telegraph equation. (English)Zbl 0976.35093

MSC:  35R10 35L70 35A30
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### Spectral theory, bifurcation points, and nonlinear boundary value problems. (Italian. English summary)Zbl 0937.34031

MSC:  34C23 34G20 34L05

### A method for solving a nonlinear self-adjoint spectral problem for a second order ordinary differential equation with nonlocal boundary conditions. (English. Russian original)Zbl 0947.65093

Differ. Equations 35, No. 2, 205-210 (1999); translation from Differ. Uravn. 35, No. 2, 206-211 (1999).
MSC:  65L15 34L15

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### An eigenvalue problem with singularity for fourth order ordinary differential equation. (English)Zbl 0949.34067

MSC:  34L05 34B24 34B05 35J20 49R50

### Potential bounds in problems on quasilinear elliptic equations. (English)Zbl 0951.35048

MSC:  35J65 47N20 35J25
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### Oscillation criteria for second-order nonlinear differential equations. (English)Zbl 0943.34019

MSC:  34C10 34C15

### Periodic solutions to second-order neutral equations with some delays. (Chinese. English summary)Zbl 0932.34072

MSC:  34K13 34K40

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### Transfer function models for multidimensional systems with bounded spatial domains. (English)Zbl 0935.93038

Reviewer: E.Boje (Durban)
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### On spectral approximation for some two-dimensional singularly perturbed problems. (English)Zbl 0944.65524

MSC:  65M70 35K15 35B25

### Weighted Sobolev spaces and Laplace’s equation and the heat equations in a half space. (English)Zbl 0934.35032

MSC:  35J05 46E35 35K15
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### Boundary observability for the finite-difference space semi-discretizations of the 2-D wave equation in the square. (English)Zbl 0939.93016

Reviewer: T.Nambu (Kobe)
MSC:  93C20 93B07 35L20
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### Bounded solutions of second order differential equation with constant delay. (English)Zbl 0939.34069

Marušiak, Pavol (ed.) et al., Proceedings of the international scientific conference of mathematics, Žilina, Slovakia, June 30-July 3, 1998. Vol. I. Žilina: EDIS, Žilina University Publisher. 33-40 (1999).
Reviewer: Jan Cermak (Brno)
MSC:  34K25 34K12

### Existence of nonoscillatory solutions for nonlinear integro-differential equations of second order. (English)Zbl 0951.45002

MSC:  45J05 45G10 45M05

MSC:  34K25

### Multipoint boundary value problems for a second-order ordinary differential equation. (English)Zbl 0945.34006

MSC:  34B10 34B15
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