Results 21 to 30 of about 725,779 (280)

New Stability Results for Abstract Fractional Differential Equations with Delay and Non-Instantaneous Impulses

open access: yesMathematics, 2023
This research delves into the field of fractional differential equations with both non-instantaneous impulses and delay within the framework of Banach spaces.
Abdellatif Benchaib   +3 more
doaj   +1 more source

On classification and invariants of second order non-parabolic linear partial differential equations in two variables [PDF]

open access: yes, 2017
The paper deals with second order abstract linear partial differential equations (LPDE) over a partial differential field with two commuting differential operators.
Bekbaev, U.
core   +2 more sources

Continuation of mild solution for abstract fractional integro-differential equations

open access: yesCQD Revista Eletrônica Paulista de Matemática, 2022
In this paper we study the existence of local, global mild solution for the abstract fractional integro-differential Cauchy problem.
José Paulo Carvalho dos Santos
doaj  

A Note on Existence of Mild Solutions for Second-Order Neutral Integro-Differential Evolution Equations with State-Dependent Delay

open access: yesFractal and Fractional, 2021
This article is mainly devoted to the study of the existence of solutions for second-order abstract non-autonomous integro-differential evolution equations with infinite state-dependent delay.
Shahram Rezapour   +4 more
doaj   +1 more source

Spectral estimates for resolvent differences of self-adjoint elliptic operators

open access: yes, 2010
The notion of quasi boundary triples and their Weyl functions is an abstract concept to treat spectral and boundary value problems for elliptic partial differential equations.
Behrndt, Jussi   +2 more
core   +1 more source

On the covering dimension of the set of solutions of some nonlinear equations

open access: yes, 1986
We prove an abstract theorem whose sole hypothesis is that the degree of a certain map is nonzero and whose parametric equations are studied using cohomological mconclusions imply sharp, multidimensional continuation results.
Fitzpatrick, P.   +2 more
core   +1 more source

Dirichlet problem for second-order abstract differential equations

open access: yesElectronic Journal of Differential Equations, 2020
We study the well-posedness in the space of continuous functions of the Dirichlet boundary value problem for a homogeneous linear second-order differential equation u''+Au = 0, where A is a linear closed densely defined operator in a Banach space. We
Giovanni Dore
doaj  

Weak solutions to problems involving inviscid fluids

open access: yes, 2015
We consider an abstract functional-differential equation derived from the pressure-less Euler system with variable coefficients that includes several systems of partial differential equations arising in the fluid mechanics.
C Audiard   +14 more
core   +1 more source

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

Abstract incomplete degenerate differential equations [PDF]

open access: yesTsukuba Journal of Mathematics, 2016
In this paper, we investigate the abstract incomplete degenerate di.erential equations in locally convex spaces, associated with use of the modified Liuoville right-sided fractional derivatives ([21]). The existence of solutions of abstract incomplete degenerate di.erential equations of second order is proved by considering the corresponding incomplete
openaire   +2 more sources

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