## Found 143 Documents (Results 1–100)

100
MathJax

### On double expansion of a second order differential operator in terms of eigen- and adjoint functions. (Russian)Zbl 0638.34017

Spektr. Teor. Oper. 4, 107-118 (1982).
MSC:  34L99 41A60

### Asymptotic behavior of the solution of the nonlinear equation $$y^ m- g(x)y^ n=0$$. (Russian)Zbl 0636.34048

MSC:  34E05 34A34

### On asymptotics of solutions of second order differential equations with respect to a large parameter. (Russian)Zbl 0626.34063

Reviewer: J.Banas
MSC:  34E05

### Outline of finite element methods. (Zarys metody elementów skończonych). (Polish)Zbl 0615.65108

Reviewer: H.Marcinkowska

### Exact dependence between asymptotic expansions of eigenvalues for the Sturm-Liouville boundary value problems and the smoothness of the potential. (Russian)Zbl 0604.34008

Reviewer: J.Appell
MSC:  34A55 34L99 34E05

MSC:  34E05
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### Eine spezielle Spline-Funktion und das Cauchy-Problem. (German)Zbl 0599.65047

MSC:  65L05 34A34

### A note on periodic solutions of second order autonomous ordinary differential equations. (English)Zbl 0599.34051

Proc. 13th Iranian Math. Conf., Kerman/Iran 1981, 1-6 (1982).
MSC:  34C25 34A34

MSC:  34L99
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### The interior and exterior problems for the generalized poly-axially symmetric Helmholtz equation. (English)Zbl 0594.35025

Reviewer: R.Leis
MSC:  35J05 35C99

### Numerical solution of a second order boundary value problem. (Italian)Zbl 0593.65055

Reviewer: M.Calvo
MSC:  65L10 34B15

### On the problem of effective integrability of Riccati differential equation and of a linear differential equation of second order with the aid of peculiar integral. (English)Zbl 0593.34007

Differential equations and applications, Vol. I, Proc. 2nd Conf., Rousse/Bulg. 1981, 324-328 (1982).
MSC:  34A05

### An eigenvalue problem associated with an n$$\times n$$ matrix differential operator. (English)Zbl 0584.34014

MSC:  34L99 47E05

### On the existence of eigenmodes of linear quasi-periodic differential equations and their relation to the MHD continuum. (English)Zbl 0583.34034

MSC:  34C27 65L15 76W05

### On a polynomial system in a structural dynamics problem. (English)Zbl 0581.73069

MSC:  74H45 74J10

### Asymptotic analysis of a nonlinear second order difference equation. II. (English)Zbl 0573.34030

Reviewer: L.Erbe
MSC:  34C11 34A34 34C15

### On space-self-localized and time-periodic solutions of wave equations. (Russian)Zbl 0572.35068

Methods of the qualitative theory of differential equations, Interuniv. Collect., Gor’kij 1982, 73-92 (1982).
Reviewer: V.Ďurikovič

### A note on optimal control of a system with an infinite number of variables. (English)Zbl 0569.49001

MSC:  49J20 35K20 93C20 35B37 49K20

### Discontinuous change and superposition in nonlinear waves, asymptotics and bifurcation. (English)Zbl 0568.35067

Reviewer: P.Bassanini

MSC:  34M99
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### Some integral estimates of the Green function. (Russian. English summary)Zbl 0552.34030

Reviewer: B.Šehter
MSC:  34B27

### Solution of systems of differential equations by the Ritz method. (Russian)Zbl 0548.65084

Differential equations and applications. I. Proc. 2nd Conf., Rousse/Bulg. 1981, 24-27 (1982).
Reviewer: L.G.V”lkov

### Numerical solution of the Rayleigh and van der Pol wave equations. (English)Zbl 0548.65070

Differential equations and applications II. Proc. 2nd Conf., Rousse/Bulg. 1981, 787-798 (1982).
Reviewer: L.V”lkov

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### Example of partial differential equation of second order with positive eigenvalues. (English)Zbl 0545.35065

Zesz. Nauk. Politech. Gdańsk. 345, Mat. 12, 47-51 (1982).
Reviewer: D.Robert
MSC:  35P05 35G15

### Nonlinear equations for fields radiated by particles. (English)Zbl 0545.35059

Reviewer: J.Ginibre
MSC:  35L70 35L10 83A05
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### Properties of characteristics of equations of mixed type near a degeneration curve. (English)Zbl 0544.35009

MSC:  35A30 35M99

### Finite extension and torsion of thin elastic strips. (English)Zbl 0543.73048

Finite elasticity, Proc. IUTAM Symp., Bethlehem/PA 1980, 331-346 (1982).
MSC:  74B20

### Soliton solutions of the $$n$$-dimensional sine-Gordon equation. (Chinese)Zbl 0543.35084

Reviewer: L.-Y.Shih

### On a result of Etgen and Lewis. (English)Zbl 0542.34032

Reviewer: P.K.Wong
MSC:  34C10
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### Principles of advanced mathematical physics. (Printsipy sovremennoj matematicheskoj fiziki). Transl. from the English. (Russian)Zbl 0537.46003

Moskva: Izdatel’stvo ”Mir”. 486 p. R. 2.20 (1982).

### Basic Sturm-Liouville theory. (English)Zbl 0537.34021

Reviewer: M.Boudourides
MSC:  34L99 34C10

### Existenzsätze für semilineare parabolische Systeme mit Funktionalen. (German)Zbl 0535.35038

Fakultät für Mathematik der Universität Karlsruhe. 65 S. (1982).
Reviewer: P.de Mottoni
MSC:  35K55 35K10 35A05 35R20 47H10

### Existence of conservation laws for several vector 1-forms. (English)Zbl 0534.58004

Reviewer: H.J.Seifert
MSC:  58A10 35L70

### A further result on the essential spectrum of linear 2nth order differential epressions with complex coefficients. (English)Zbl 0534.34030

Ordinary and partial differential equations, Proc. 7th Conf., Dundee/Scotl. 1982, Lect. Notes Math. 964, 569-575 (1982).
Reviewer: D.E.Panayotounakos
MSC:  34L99

### On the optimality of the pursuit time in differential games. (Russian)Zbl 0532.90107

Reviewer: Z.Wyderka
MSC:  91A24 91A23

### On the question of the convergence of an approximate method for the solution of differential equations, constructed on the basis of Bernstein polynomials. (Russian)Zbl 0532.65053

Methods of approximation theory and their applications, Collect. sci. Works Kiev 1982, 66-71 (1982).
Reviewer: J.Kalinowski
MSC:  65L10 34B15

### Topological methods of investigation of operator equations and nonlinear boundary value problems. (English)Zbl 0532.47051

Nonlinear analysis, function spaces and applications, Vol. 2, Proc. Spring Sch., Písek/Czech. 1982, Teubner-Texte Math. 49, 191-233 (1982).
Reviewer: B.J.Barr
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### An integral criterion for the oscillation of a second order sublinear ordinary differential equation. (English)Zbl 0532.34024

Reviewer: B.Aulbach
MSC:  34C10 34A34

### On the transformation theory of ordinary second-order linear symmetric differential equations. (English)Zbl 0532.34016

Differential equations and their applications, Equadiff 5, Proc. 5th Czech. Conf., Bratislava 1981, Teubner-Texte Math. 47, 87-90 (1982).
Reviewer: B.Li

MSC:  45J05

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### Huygens’ principle. (English)Zbl 0528.35057

MSC:  35L10 35B30
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### On the behavior at infinity of the solutions of ordinary differential operator equations of second order. (Russian)Zbl 0528.34059

MSC:  34G10 34E05

### Oscillation and nonoscillation theorems for some nonlinear ordinary differential equations. (English)Zbl 0528.34034

Ordinary and partial differential equations, Proc. 7th Conf., Dundee/Scotl. 1982, Lect. Notes Math. 964, 187-212 (1982).
MSC:  34C10 34A34

MSC:  34A30

### A class of generalized Bessel functions occurring in non-linear differential equations. (English)Zbl 0528.34003

MSC:  34A12 34A34 33C10

MSC:  34L99

### Instability of finite amplitude elastic waves. (English)Zbl 0525.73056

Finite elasticity, Proc. IUTAM Symp., Bethlehem/PA 1980, 249-256 (1982).
MSC:  74G99 74H99 74J99 74B20 74S30

### Über sphärische Wellenfamilien höherer Ordnung bei Huygensschen Differentialgleichungen. (German)Zbl 0525.35049

MSC:  35L10 35B05
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### Bose condensation, solitons and canonical transformations in quantum field theory. (English)Zbl 0524.35091

Mathematics at the service of man, Proc. 2nd World Conf., Las Palmas/Spain 1982, 658-663 (1982).

### On the convergence of solutions of random differential equations. (English)Zbl 0524.34061

Differential equations and their applications, Equadiff 5, Proc. 5th Czech. Conf., Bratislava 1981, Teubner-Texte Math. 47, 54-57 (1982).
MSC:  34F05 34D05 60H10

### Higher monotonicity properties of i-th derivatives of solutions of $$y^ n+a(x)y'+b(x)y=0$$. (English)Zbl 0522.34033

MSC:  34C20 34A30
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MSC:  34B05

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### Linear differential equations of second order with rational solutions. (Russian)Zbl 0518.34011

MSC:  34A30 34A05

### A direct method of operational calculus. I: Research for the solution of second-order linear ordinary differential equations with variable coefficients. (English)Zbl 0517.44015

MSC:  44A40 34A25

MSC:  34B15
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### On the existence of solutions of a singular boundary value problem for a nonlinear ordinary differential equation. (Russian)Zbl 0517.34015

MSC:  34B15 34A34

### On the solutions of Navier-Stokes equations and the theory of homogeneous isotropic turbulence. (English)Zbl 0516.76037

Surveys in fluid mechanics, 83-103 (1982).

### Solitons as Bose condensates. (English)Zbl 0516.35057

Mathematics at the service of man, Proc. 2nd World Conf., Las Palmas/Spain 1982, 614-619 (1982).

### Vector algorithms in the Monte-Carlo method for solving systems of second-order elliptic equations and Lame’s equation. (English. Russian original)Zbl 0515.65005

Sov. Math., Dokl. 25, 195-200 (1982); translation from Dokl. Akad. Nauk SSSR 262, 1076-1080 (1982).

MSC:  65L05

### Some limit circle eigenvalue problems and asymptotic formulae for eigenvalues. (English)Zbl 0514.34018

Ordinary and partial differential equations, Proc. 7th Conf., Dundee/Scotl. 1982, Lect. Notes Math. 964, 28-55 (1982).
MSC:  34L99 34C05

MSC:  34B15

### On topological imbedding of an interval into the set of solutions of an ordinary differential equation. (Russian)Zbl 0513.34015

MSC:  34A99 34A34 57N35

### Turning surface behaviour for internal waves subject to general gravitational fields. (English)Zbl 0512.76029

MSC:  76B55 35M99 76B60 76U05 85A30 86A99
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### Averaging of the stationary equation of heat conduction for periodic media of special structure. (English. Russian original)Zbl 0511.35011

U.S.S.R. Comput. Math. Math. Phys. 22, No. 3, 132-142 (1982); translation from Zh. Vychisl. Mat. Mat. Fiz. 22, 623-633 (1982).
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### On local existence theorems for periodic solutions. (English)Zbl 0509.34040

MSC:  34C25 34A34

### An inequality involving a conditionally convergent Dirichlet integral of an ordinary differential expression. (English)Zbl 0509.34023

MSC:  34B99 47E05 26A24

### $$L^p$$ boundedness of Fourier integral operators. (English)Zbl 0508.42020

Mem. Am. Math. Soc. 264, 57 p. (1982).
MSC:  42B20 47Gxx 35L15
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### Asymptotic properties of the solutions of second-order ordinary differential equations. (Russian)Zbl 0508.34040

MSC:  34E05 34A12 34A34

### Periodic solutions of an integro-differential equation of the second order in nonresonance case. (Russian)Zbl 0506.45009

MSC:  45J05 45L05

### Mixed problem for a singularly perturbed second order hyperbolic system. (Russian)Zbl 0506.35008

MSC:  35B25 35L20 35C20 35A05 35L15

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### Consistency in regression models specified by differential equations. (English)Zbl 0505.62051

MSC:  62J02 62J05 62G20

### Some classes of completely integrable second-order partialdifferential- equation systems with nonmovable critical points. (English. Russian original)Zbl 0505.35024

Differ. Equations 18, 622-628 (1982); translation from Differ. Uravn. 18, 859-867 (1982).

### A perturbation theory for abstract evolution equations of second order. (English)Zbl 0505.34040

MSC:  34D10 34E10 34A12
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### Description of steady gas flows based on an even distribution function. (English)Zbl 0504.76087

MSC:  76P05 49S05
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### Asymptotic behaviour of some second order evolution equations. (English)Zbl 0504.47040

MSC:  47D03 35B40 47F05
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### Construction of oscillating solutions of a nonlinear Cauchy type problem by averaging on small sections. (Russian)Zbl 0503.45008

MSC:  45J05 45L05

### On the theory of equations of mixed type. (Russian)Zbl 0503.35065

MSC:  35M99 35F15 35D05 35A05

### Détermination d’une solution périodique autogeneree d’une équation autonome d’ordre deux avec non linearites quadratiques. (French)Zbl 0503.34027

MSC:  34C25 34C05 34A34

### On non-elliptic boundary problems. (English)Zbl 0502.35037

MSC:  35J25 35S05 35A05 35B60
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### An abundance of orthogonal polynomials. (English)Zbl 0499.33006

MSC:  33C45 42C05
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### On the uniqueness of solutions of a linear boundary value problem for a second order elliptic-parabolic equation. (English. Russian original)Zbl 0498.35061

Sov. Math., Dokl. 25, 118-121 (1982); translation from Dokl. Akad. Nauk SSSR 262, 791-794 (1982).
MSC:  35M99 35J70 35A05

### The second order differential equation with an oscillatory coefficient. (English)Zbl 0498.34043

MSC:  34E10 34A34
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