**Volume 4 (2022)**

**Volume 3 (2021)**

**Volume 2 (2020)**

**Volume 1 (2019)**

##### 1. An existence result for a class of (p(x),q(x))-Laplacian system via sub-supersolution method

*Volume 3, Issue 4 , December 2021, Pages 1-8*

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**Abstract **

This study concerns the existence of positive solution for the following nonlinear boundary value problem\begin{gather*}-\Delta_{p(x)} u= a(x)h(u) + f(v) \quad\text{in }\Omega\\-\Delta_{q(x)} v=b(x)k(v) + g(u) \quad\text{in }\Omega\\u=v= 0 \quad\text{on } \partial \Omega\end{gather*}where $p(x),q(x) ...
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##### 2. On closedness of convolution of two sets

*Volume 3, Issue 4 , December 2021, Pages 9-12*

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**Abstract **

In this note, we give an abstract version of the fact that convolution of two closed and compact subsets of a hypergroup is a closed set.
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##### 3. On a nonlinear abstract second-order integrodifferential equation part I

*Volume 3, Issue 4 , December 2021, Pages 13-24*

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**Abstract **

The object of this paper is to study the existence, uniqueness and continuation of the solutions of nonlinear second-order integrodifferential equations. In the theory of infinitesimal generator of $C_0$- semigroup in a Banach space, the fixed point theorems of Schauder and Banach are used to establish ...
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##### 4. Numerical solution of a coupled system of fractional order integro differential equations by an efficient numerical method based on the second kind Chebyshev polynomials

*Volume 3, Issue 4 , December 2021, Pages 25-40*

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**Abstract **

In this paper, an efficient numerical method based on operational matrices of the second kind Chebyshev polynomials is used for the solution of a coupled system of fractional-order integrodifferential equations that the fractional derivative is given in Caputo's sense. The operational matrices of the ...
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##### 5. Multiplicity results for the nonlinear p-Laplacian fractional boundary value problems

*Volume 3, Issue 4 , December 2021, Pages 41-62*

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**Abstract **

This paper investigates the existence of single and multiple positive positive solutions of fractional differential equations with p-Laplacian by means of the Green's function properties, the Guo-Krasnosel'skii fixed point theorem, the monotone iterative technique accompanied by established sufficient ...
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##### 6. Bifuzzy d-algebras under norms

*Volume 3, Issue 4 , December 2021, Pages 63-83*