## Found 71 Documents (Results 1–71)

100
MathJax

### On an optimal domain with respect to $$(x,t)$$ for a parabolic-type equation. (English. Russian original)Zbl 0863.49005

Differ. Equations 31, No. 7, 1216-1217 (1995); translation from Differ. Uravn. 31, No. 7, 1265-1266 (1995).
MSC:  49J20 93C20 35K20

### The Bubnov-Galerkin method for an abstract quasilinear problem on stationary action. (English. Russian original)Zbl 0863.34065

Differ. Equations 31, No. 7, 1169-1179 (1995); translation from Differ. Uravn. 31, No. 7, 1222-1231 (1995).

### Uniform well-posedness of boundary value problems for abstract equations with the Keldysh-Feller operator. (English. Russian original)Zbl 0863.34061

Differ. Equations 31, No. 8, 1373-1381 (1995); translation from Differ. Uravn. 31, No. 8, 1419-1425 (1995).

### A boundary value problem for a functional-differential equation with a linearly transformed argument. (English. Russian original)Zbl 0863.34070

Differ. Equations 31, No. 8, 1294-1299 (1995); translation from Differ. Uravn. 31, No. 8, 1348-1352 (1995).
MSC:  34K10 47B38

MSC:  34C11

### The direct variational method for operator equations $$u^ k+C^ mu=f, k=1,2; m\in N$$. (Russian)Zbl 0826.34063

MSC:  34G20 35K15 35L15 49R50

### On solvability and nonsolvability of a variant of boundary value problems with a free boundary for abstract second order differential equations. (Russian)Zbl 0763.34051

MSC:  34G20 34B15

### Solvability of a nonlinear boundary value problem in a fixed set of functions. (Russian)Zbl 0743.34070

MSC:  34K10 34B15

### A modification of the method of V. Volterra for the investigation of the asymptotic behavior of solutions of a second order linear equation. (Russian)Zbl 0745.34043

MSC:  34D05 34A30

### Existence of solutions of boundary value problems for a second order equation. (Russian)Zbl 0715.34041

Reviewer: J.Jarník
MSC:  34B15

### On perturbations of linear systems with quasiperiodic coefficients. (Russian)Zbl 0712.34068

Reviewer: W.Müller

### On integration in closed form of a class of Fuchs equations and its application. (Russian)Zbl 0713.34002

Reviewer: S.G.Hristova
MSC:  34A05 34A99

### On the Riesz basis of a sine system. (Russian)Zbl 0696.34013

Reviewer: N.Bozhinov
MSC:  34B10 42C30 42C15

### The spectral function of a second order functional-differential operator. (Russian)Zbl 0693.34070

Reviewer: M.Tvrdy
MSC:  34K10 34L99

### On the boundedness of the number of orthogonal solutions of the equation $$-u''+q(x)u=\lambda u$$. (Russian)Zbl 0693.34037

Reviewer: D.Bobrowski
MSC:  34C11

### New formulae for approximate solution of one-dimensional wave equation. (Russian)Zbl 0693.34008

Reviewer: L.Janos
MSC:  34A45 34C20

### On an inverse problem for a second order differential equation in Banach space. (Russian)Zbl 0692.34064

Reviewer: H.O.Fattorini

### On a nonlocal boundary value problem of first kind in differential and difference treatments. (Russian)Zbl 0691.34012

Reviewer: M.Möller
MSC:  34B10

### On a difference method for solving a class of hyperbolic equations with degeneration of the order. (Russian)Zbl 0685.65084

Reviewer: S.Spassov
MSC:  65M06 35L15 35L80

### On an integrodifferential operator of potential theory. (Russian)Zbl 0667.45013

Reviewer: C.Constanda

### Determination of the number of limit cycles of the second kind for systems of differential equations. (Russian)Zbl 0656.34016

Reviewer: I.Foltyńska
MSC:  34C05

### Method of integral transforms for solving some classes of differential equations. (Russian)Zbl 0659.34001

Reviewer: L.P.Lebedev
MSC:  34A05 34A30 44A15

### On functionally invariant solutions of a class of quasilinear second order partial differential equations with two independent variables. (Russian)Zbl 0637.35021

Reviewer: O.F.Men’shikh
MSC:  35G20 35Q99 35B40

### On the stability of the trivial solution of a non-autonomous quasilinear equation of second order. (Russian)Zbl 0636.34044

Reviewer: Yu.N.Bibikov
MSC:  34D20

### Nonlocal boundary value problem of the first kind for the Sturm-Liouville operator in the differential and difference treatments. (Russian)Zbl 0636.34019

Reviewer: V.Rǎsvan
MSC:  34L99 65L10

### On unconditional basis property on a closed interval of systems of eigen- and adjoint functions of a second order operator with discontinuous coefficients. (Russian)Zbl 0636.34017

Reviewer: B.Šehter
MSC:  34L99 42C30

### On stationary and periodic solutions of a nonlinear nonautonomous differential equation. (Russian)Zbl 0632.34040

Reviewer: V.Răsvan
MSC:  34C25 34A34

### Asymptotic expansions of the solutions of a degenerate hypergeometric equation. (Russian)Zbl 0627.34010

MSC:  34M99 34E05 33B15

MSC:  34A99

### Periodic solutions of the equation $$\ddot x+\lambda f(ax+b\dot x)\dot x+x=0$$. (Russian)Zbl 0625.34045

Reviewer: S.G.Hristova
MSC:  34C25

### Darboux problem for a degenerate charged second order integro- differential equation. (Russian)Zbl 0616.45015

Reviewer: G.Cimmino
MSC:  45K05

### On the monodromy group of a second order linear differential equation. (Russian)Zbl 0615.34003

Reviewer: V.A.Tkačenko
MSC:  34M35 34A30

### On the structure of some set of solutions of a second order ordinary differential equation. (Russian)Zbl 0614.34005

Reviewer: I.Foltyńska
MSC:  34A12 34C99

### On the question of boundedness of the solution of a second order linear equation. (Russian)Zbl 0613.34027

Reviewer: P.Moson
MSC:  34C11

### On a boundary value problem of periodic type for a linear second order ordinary differential equation. (Russian)Zbl 0607.34016

Reviewer: A.Haimovici
MSC:  34B15 34A30

### Regularization of an ill-posed Cauchy problem for a second order equation in Banach space. (Russian)Zbl 0607.34002

Reviewer: A.Haimovici
MSC:  34A12 47E05

### On the continuity of the reflection coefficient of one-dimensional Schrödinger equation. (Russian)Zbl 0644.34014

Reviewer: T.Dłotko
MSC:  34A99 35J10 70B05

MSC:  34C25

### On Sturm type theorems for linear systems of differential equations. (Russian)Zbl 0594.34010

Reviewer: E.Barvinek
MSC:  34A30

### Length of the gaps in the continuous spectrum of the Sturm-Liouville operator. (Russian)Zbl 0586.34020

Reviewer: D.Yafaev
MSC:  34L99

Reviewer: I.Bock

### Asymptotic estimates of the norm of the integral matrix of a two-dimensional system of differential equations in the neighborhood of a singular point of the system. (Russian)Zbl 0569.34049

Reviewer: V.Răsvan
MSC:  34E05 34C05 34A30

### Solution of linear homogeneous differential equations with variable coefficients of some class. (Russian)Zbl 0608.34010

Reviewer: J.Appell
MSC:  34A30

### On first integrals of a system of differential equations. (Russian)Zbl 0602.34008

Reviewer: C.Corduneanu
MSC:  34A34

### On a condition for localization of the spectrum of the Sturm-Liouville problem on the positive semi-axis. (Russian)Zbl 0591.34020

Reviewer: D.Herceg
MSC:  34L99 47E05

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

MSC:  34A30 34A05

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

MSC:  34A99 34A34 57N35

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

MSC:  35M99 35F15 35D05 35A05

### On the behaviour of the characteristics of equations of mixed type near the line of degeneration. (Russian)Zbl 0486.35005

MSC:  35A30 35M99

### The Cauchy problem for a certain quasilinear equation. (Russian)Zbl 0481.35063

MSC:  35L80 35L70 47J05 35A05

### Functionally invariant solutions of differential equations. (English)Zbl 0471.35020

MSC:  35G05 35C15 35B40

### Boundary value problems for a system of many-dimensional mixed equations. (Russian)Zbl 0468.35067

MSC:  35M99 35J25 35L20

### Über die Stabilität der Lösungen eines Systems linearer Differentialgleichungen zweiter Ordnung mit periodischen Koeffizienten. (Russian)Zbl 0437.34005

MSC:  34A30 34D20

### Ein Problem mit nichtlokalen Randbedingungen für gewisse abstrakte hyperbolische Gleichungen. (Russian)Zbl 0422.35075

MSC:  35R20 35L20 35R15 35L35 47F05 35A05

### Über das Cauchyproblem und die Methode der Quasiinversion für eine Gleichung zweiter Ordnung in Banachräumen. (German)Zbl 0411.34081

MSC:  34G10 34A12 34A05

### Sätze für die Existenz und Eindeutigkeit der Lösungen inverser Probleme für Gleichungen zweiter Ordnung parabolischen Typs. (Russian)Zbl 0404.35092

MSC:  35R30 35A05 35K10

### Über die koerzitive Lösbarkeit abstrakter parabolischer Gleichungen mit konstantem Operator. (Russian)Zbl 0409.34061

MSC:  34G10 35K15

### Uniqueness of the solution of a Dirichlet problem for a second order elliptic differential equation in a region with infinite boundary. (Russian)Zbl 0395.35021

MSC:  35J25 35A05 35P99

### Über die Stabilität der Lösung eines Spektralproblems für die Diffusionsmehrgruppenapproximation der Transportgleichung. (Russian)Zbl 0392.35046

MSC:  35P99 35B35 35J25

### Über die globale Lösung schwach nichtlinearer hyperbolischer Gleichungen im Hilbertraum. (Russian)Zbl 0392.35042

MSC:  35L70 35A10 34G20

### Zur Theorie der Randwertprobleme für Gleichungen gemischten Typs im Raum. (Russian)Zbl 0358.35053

MSC:  35M99 35D05 35J25 35J10 35B45 35K20 35L20

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