On the existence of solutions of a nonlocal biharmonic problem

In this paper, we prove a theorem on the existence of solutions for a second order differential inclusion governed by the Clarke subdifferential of a Lipschitzian function and by a mixed semicontinuous perturbation.

Download Full-text

Solvability of a 2 x 2 block operator matrix of chandrasekhar type on a Bananch algebra

Filomat ◽

10.2298/fil1716169h ◽

2017 ◽

Vol 31 (16) ◽

pp. 5169-5175 ◽

Cited By ~ 1

Author(s):

H.H.G. Hashem

Keyword(s):

Fixed Point ◽

Fixed Point Theorem ◽

Existence Of Solutions ◽

Banach Algebras ◽

Operator Matrix ◽

Nonlinear Operators ◽

Block Operator Matrix ◽

Block Operator ◽

Quadratic Integral ◽

Quadratic Integral Equations

In this paper, we study the existence of solutions for a system of quadratic integral equations of Chandrasekhar type by applying fixed point theorem of a 2 x 2 block operator matrix defined on a nonempty bounded closed convex subsets of Banach algebras where the entries are nonlinear operators.

Download Full-text

Existence of weak solutions to SPDEs with fractional Laplacian and non-Lipschitz coefficients

Stochastic Partial Differential Equations Analysis and Computations ◽

10.1007/s40072-021-00199-6 ◽

2021 ◽

Author(s):

Shohei Nakajima

Keyword(s):

Partial Differential Equations ◽

Differential Equations ◽

Weak Solutions ◽

Stochastic Partial Differential Equations ◽

Fractional Laplacian ◽

Existence Of Solutions ◽

Partial Differential ◽

Continuity Theorem ◽

Existence Of Weak Solutions ◽

One Dimensional

AbstractWe prove existence of solutions and its properties for a one-dimensional stochastic partial differential equations with fractional Laplacian and non-Lipschitz coefficients. The method of proof is eatablished by Kolmogorov’s continuity theorem and tightness arguments.

Download Full-text

Existence of Solutions for an integral equation of Chandrasekhar type in Banach algebras with respect to the weak topology

Operator Theory ◽

10.1515/9783110598193-013 ◽

2021 ◽

pp. 177-182

Author(s):

Amor Fahem ◽

Aref Jeribi ◽

Najib Kaddachi

Keyword(s):

Integral Equation ◽

Weak Topology ◽

Existence Of Solutions ◽

Banach Algebras

Download Full-text

Existence of solutions for integral boundary value problems of mixed fractional differential equations under resonance

Boundary Value Problems ◽

10.1186/s13661-020-01332-5 ◽

2020 ◽

Vol 2020 (1) ◽

Cited By ~ 5

Author(s):

Shiying Song ◽

Yujun Cui

Keyword(s):

Differential Equations ◽

Boundary Value Problems ◽

Fractional Differential Equations ◽

Existence Of Solutions ◽

Boundary Value ◽

Integral Boundary ◽

Fractional Differential ◽

Integral Boundary Value Problems

Download Full-text

Stability Analysis and Existence of Solutions for a Modified SIRD Model of COVID-19 with Fractional Derivatives

Symmetry ◽

10.3390/sym13081431 ◽

2021 ◽

Vol 13 (8) ◽

pp. 1431

Author(s):

Bilal Basti ◽

Nacereddine Hammami ◽

Imadeddine Berrabah ◽

Farid Nouioua ◽

Rabah Djemiat ◽

...

Keyword(s):

Mathematical Model ◽

Existence And Uniqueness ◽

Fractional Derivatives ◽

Fixed Point Theorems ◽

Existence Of Solutions ◽

Biological Models ◽

Uniqueness Of Solutions ◽

Caputo Fractional Derivatives ◽

Single Form ◽

Stability Results

This paper discusses and provides some analytical studies for a modified fractional-order SIRD mathematical model of the COVID-19 epidemic in the sense of the Caputo–Katugampola fractional derivative that allows treating of the biological models of infectious diseases and unifies the Hadamard and Caputo fractional derivatives into a single form. By considering the vaccine parameter of the suspected population, we compute and derive several stability results based on some symmetrical parameters that satisfy some conditions that prevent the pandemic. The paper also investigates the problem of the existence and uniqueness of solutions for the modified SIRD model. It does so by applying the properties of Schauder’s and Banach’s fixed point theorems.

Download Full-text