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Displaying 41 – 60 of 148

On global transformations of ordinary differential equations of the second order

Václav Tryhuk (2000)

Czechoslovak Mathematical Journal

The paper describes the general form of an ordinary differential equation of the second order which allows a nontrivial global transformation consisting of the change of the independent variable and of a nonvanishing factor. A result given by J. Aczél is generalized. A functional equation of the form $f (t, v y, w y + u v z) = f (x, y, z) u^{2} v + g (t, x, u, v, w) v z + h (t, x, u, v, w) y + 2 u w z$ is solved on $ℝ$ for $y \neq 0$ , $v \neq 0 .$

On Halphen and Laguerre-Forsyth canonical forms of linear differential equations

František Neuman (1990)

Archivum Mathematicum

On index theorems for linear ordinary differential operators

Michèle Loday-Richaud, Geneviève Pourcin (1997)

Annales de l'institut Fourier

We introduce and study the sheaf of Deligne to describe singular points of a linear differential operator $D$ and we develop a technique based on homological algebra to prove index theorems for $D$ .As particular cases, we obtain index theorems for $D$ acting in spaces of multisummable series and a new proof of the index theorem of Malgrange in the space of convergent power series and of the index theorems of Ramis in the spaces of Gevrey series.We compute the values of these indices in terms of the formal...

On linear differential equations involving a para-Grassmann variable.

Mansour, Toufik, Schork, Matthias (2009)

SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]

On linear singular functional-differential equations in a functional space.

Shindiapin, Andrei (2004)

Abstract and Applied Analysis

On Lyapunov stability of linear systems of generalized ordinary differential equations.

Ashordia, M., Kekelia, N. (2000)

Memoirs on Differential Equations and Mathematical Physics

On Lyapunov transformations of linear systems of implicit differential equations

S. A. Mazanik (1991)

Archivum Mathematicum

On minimizing the sum of squares of $ℒ^{2}$ norms of differential operators under constraints

Richard C. Brown, Allan M. Krall (1977)

Czechoslovak Mathematical Journal

On monotone solutions of the fourth order ordinary differential equations

Mária Tóthová, Oleg Palumbíny (1995)

Czechoslovak Mathematical Journal

On $n$ th order differential equations over Hardy fields

A. Ramayyan (1994)

Kybernetika

On ordinary linear $p$ -adic differential equations with algebraic function coefficients

Bernard Dwork (1975/1976)

Groupe de travail d'analyse ultramétrique

On oscillation, continuation, and asymptotic expansions of solutions of linear differential equations

Steven B. Bank (1991)

Rendiconti del Seminario Matematico della Università di Padova

On oscillation criteria for self-adjoint linear differential equation of the fourth order

Ondřej Došlý, Jan Osička (1990)

Časopis pro pěstování matematiky

On oscillation criteria of fourth order linear differential equations

Oleg Palumbíny (2003)

Czechoslovak Mathematical Journal

The paper deals with oscillation criteria of fourth order linear differential equations with quasi-derivatives.

On oscillatory solutions of fourth order ordinary differential equations

Oleg Palumbíny (1999)

Czechoslovak Mathematical Journal

The paper deals with the oscillation of a differential equation $L_{4} y + P (t) L_{2} y + Q (t) y \equiv 0$ as well as with the structure of its fundamental system of solutions.

Currently displaying 41 – 60 of 148

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Displaying 41 – 60 of 148

On global transformations of ordinary differential equations of the second order

On Halphen and Laguerre-Forsyth canonical forms of linear differential equations

On index theorems for linear ordinary differential operators

On linear differential equations involving a para-Grassmann variable.

On linear singular functional-differential equations in a functional space.

On Lyapunov stability of linear systems of generalized ordinary differential equations.

On Lyapunov transformations of linear systems of implicit differential equations

On minimizing the sum of squares of $ℒ^{2}$ norms of differential operators under constraints

On monotone solutions of the fourth order ordinary differential equations

On $n$ th order differential equations over Hardy fields

On ordinary linear $p$ -adic differential equations with algebraic function coefficients

On oscillation, continuation, and asymptotic expansions of solutions of linear differential equations

On oscillation criteria for self-adjoint linear differential equation of the fourth order

On oscillation criteria of fourth order linear differential equations

On oscillatory solutions of fourth order ordinary differential equations

On oscillatory solutions of third-order linear differential equations

On perturbed iterative linear differential equations of order $n$ .

On projective equivalence of univariate polynomial subspaces.

On rectifiable oscillation of Euler type second order linear differential equations.

On reducibility of linear quasiperiodic systems with bounded solutions.

Currently displaying 41 – 60 of 148