Results 21 to 30 of about 1,878,592 (297)

Closed-Form Solutions of Linear Ordinary Differential Equations with General Boundary Conditions

open access: yesAxioms, 2021
This paper deals with the solution of boundary value problems for ordinary differential equations with general boundary conditions. We obtain closed-form solutions in a symbolic form of problems with the general n-th order differential operator, as well ...
Efthimios Providas   +2 more
doaj   +1 more source

On Inequalities for Differential Operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1958
In this paper we study the following problem: Given that certain functionals of u u and its derivatives belong to given L ...
openaire   +1 more source

GMRES for the Differentiation Operator [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2009
We investigate using the gmres method with the differentiation operator. This operator is unbounded and thus does not fall into the framework of existing Krylov subspace theory. We establish conditions under which a function can be approximated by its own derivatives in a domain of the complex plane.
openaire   +2 more sources

A remark on rational Cherednik algebras and differential operators on the cyclic quiver [PDF]

open access: yes, 2006
We show that the spherical subalgebra Uk,c of the rational Cherednik algebra associated to Sn 2 Cl, the wreath product of the symmetric group and the cyclic group of order l, is isomorphic to a quotient of the ring of invariant differential operators on ...
Gordon, I.
core   +1 more source

Splines and fractional differential operators [PDF]

open access: yesInternational Journal of Wavelets, Multiresolution and Information Processing, 2020
Several classes of classical cardinal B-splines can be obtained as solutions of operator equations of the form [Formula: see text] where [Formula: see text] is a linear differential operator of integral order. In this paper, we consider classes of generalized B-splines consisting of cardinal polynomial B-splines of complex and hypercomplex orders and ...
openaire   +3 more sources

Solution of the inverse spectral problem for differential operators on a finite interval with complex weights [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
Non-self-adjoint second-order ordinary differential operators on a finite interval with complex weights are studied. Properties of spectral characteristics are established, and the inverse problem of recovering operators from their spectral ...
Yurko, Vjacheslav Anatol'evich
doaj   +1 more source

Hyponormal differential operators with discrete spectrum [PDF]

open access: yesOpuscula Mathematica, 2010
In this work, we first describe all the maximal hyponormal extensions of a minimal operator generated by a linear differential-operator expression of the first-order in the Hilbert space of vector-functions in a finite interval.
Zameddin I. Ismailov, Erdal Unluyol
doaj   +1 more source

Symbolic Method for Solving Nonlocal Boundary Value Problems for Systems of Ordinary Loaded Integro-Differential Equations

open access: yesMathematics
A symbolic method is presented for examining the solvability and constructing the exact solution to boundary value problems for systems of linear ordinary loaded differential equations and loaded integro-differential equations with nonlocal boundary ...
Efthimios Providas   +2 more
doaj   +1 more source

Relatively bounded and compact perturbations of nth order differential operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
A perturbation theory for nth order differential operators is developed. For certain classes of operators L, necessary and sufficient conditions are obtained for a perturbing operator B to be relatively bounded or relatively compact with respect to L ...
Terry G. Anderson
doaj   +1 more source

Discrete Differential Operators for Computer Graphics [PDF]

open access: yes, 2004
This thesis presents a family of discrete differential operators. Since these operators are derived taking into account the continuous notions of differential geometry, they possess many similar properties.
Meyer, Mark
core   +1 more source

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