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The main purpose of this paper is to determine the solution of generalized convex set-valued mappings satisfying certain functional equation. Some conclusions of stability of set-valued functional equations are obtained.

Functional Analysis · Mathematics 2020-10-13 Gang Lu , Yuanfeng Jin , Choonkil Park

We provide a characterization for a periodic system of generalized Sylvester and conjugate-Sylvester equations, with at most one generalized conjugate-Sylvester equation, to have a unique solution when all coefficient matrices are square…

Rings and Algebras · Mathematics 2025-03-18 Fernando De Terán , Bruno Iannazzo

In the present paper, classical tools of convex analysis are used to study the solution set to a certain class of set-inclusive generalized equations. A condition for the solution existence and global error bounds is established, in the…

Optimization and Control · Mathematics 2019-04-11 A. Uderzo

We give a new criterion for solvability of group equations, providing proofs of various generalizations of the Kervaire-Laudenbach conjecture for Connes-embeddable groups.

Group Theory · Mathematics 2021-09-27 Martin Nitsche , Andreas Thom

Solvability and smoothness of generalized solutions to boundary value problems for not self-adjoint differential-difference equations are studied. Necessary and sufficient conditions of Fredholmian solvability (with index zero) are…

Classical Analysis and ODEs · Mathematics 2014-04-17 Pavel Gurevich

In this article we study a class of generalised linear systems of difference equations with given boundary conditions and assume that the boundary value problem is non-consistent, i.e. it has infinite many or no solutions. We take into…

Dynamical Systems · Mathematics 2016-10-27 Nicholas Apostolopoulos , Fernando Ortega , Grigoris Kalogeropoulos

In this paper, we introduce a new concept of generalized convexity for E-differentiable vector optimization problems. Namely, the notion of exponentially E-invexity is defined. Further, some properties and results of exponentially E-invex…

Optimization and Control · Mathematics 2024-06-26 Najeeb Abdulaleem

We use a new approach with a matrix transformation to obtain a new global solvability criterion for matrix Riccati equations. The proven theorem completes an well known result in directions of extension of classes of coefficient of…

Classical Analysis and ODEs · Mathematics 2025-09-03 G. A. Grigorian

In the article we discuss the notion of the generalized invariant manifold introduced in our previous study. In the literature the method of the differential constraints is well known as a tool for constructing particular solutions for the…

Exactly Solvable and Integrable Systems · Physics 2021-07-08 I. T. Habibullin , A. R. Khakimova , A. O. Smirnov

A shift splitting modified Newton-type (SSMN) iteration method is introduced for solving large sparse generalized absolute value equations (GAVEs). The SSMN method is established by replacing the regularized splitting of the coefficient…

Numerical Analysis · Mathematics 2021-05-11 Xu Li , Xiao-Xia Yin

In this paper we study the unique solvability of backward stochastic Volterra integral equations (BSVIEs in short), in terms of both the M-solutions introduced in [17] and the adapted solutions in [6], [12] or [14]. A general existence and…

Probability · Mathematics 2010-01-21 Tianxiao Wang , Yufeng Shi

In the first part of this article, we complete the program announced in the preliminary note [8] by proving a conjecture presented in [9] that states the equivalence of contractibility and p_{1}-stability for generalized spaces of formal…

Analysis of PDEs · Mathematics 2012-05-01 Alessandro Carlotto

We consider a nonhomogeneous Burgers equation with time variable coefficients, and obtain an explicit solution of the general initial value problem in terms of solution to a corresponding linear ODE. Special exact solutions such as…

Exactly Solvable and Integrable Systems · Physics 2011-04-26 Sirin A. Buyukasik , Oktay K. Pashaev

In this paper, we consider the solvability problems for the fully coupled forward-backward stochastic difference equations (FBS{\Delta}Es) on spaces related to discrete time, finite state processes. On one hand, we provide the necessary and…

Probability · Mathematics 2019-07-09 Shaolin Ji , Haodong Liu

Theoretical and computational properties of a vector equation $Ax-\|x\|_1x=b$ are investigated, where $A$ is an invertible $M$-matrix and $b$ is a nonnegative vector. Existence and uniqueness of a nonnegative solution is proved. Fixed-point…

Numerical Analysis · Mathematics 2026-04-14 Yuezhi Wang , Gwi Soo Kim , Jie Meng

The classification of exact solutions of Maxwell vacuum equations for the case when the electromagnetic fields and metrics of homogeneous spaces are invariant with respect to the motion group G(VII) is completed. All non-equivalent exact…

Mathematical Physics · Physics 2022-12-27 V. V. Obukhov

In the lambda calculus a term is solvable iff it is operationally relevant. Solvable terms are a superset of the terms that convert to a final result called normal form. Unsolvable terms are operationally irrelevant and can be equated…

Logic in Computer Science · Computer Science 2019-03-14 Á. García-Pérez , P. Nogueira

The generalized Maxwell equations are considered which include an additional gradient term. Such equations describe massless particles possessing spins one and zero. We find and investigate the matrix formulation of the first order of…

Mathematical Physics · Physics 2011-07-19 S. I. Kruglov

Necessary and sufficient conditions for the solvability of boundary value problems for a family of functional differential equations with a non-integrable singularity are obtained.

Classical Analysis and ODEs · Mathematics 2013-07-16 Eugene Bravyi

Eigenvalue perturbation theory is applied to justify using complex-valued linear scalar test equations to characterize the stability of implicit-explicit general linear methods (IMEX GLMs) solving autonomous linear ordinary differential…

Numerical Analysis · Mathematics 2019-08-15 Andrew J. Steyer