مرور Volume 13, Issue 1 بر اساس عنوان
در حال نمایش موارد 206  225 از 324

$ omega $$ alpha $open sets $ omega $$ alpha $continuity in bitopological spaces
(Semnan University, 20220101)The purposes of this article are to introduce and characterize the notions of $ (i,j) $$ omega $$ alpha $open sets in bitopological spaces. Besides, It introduces and studies the concepts of $ (i,j) $$ omega $$ alpha ...

On $\mu$Lclosed, qcompact and qLindelöf spaces in generalized topological spaces
(Semnan University, 20220101)The research paper's main goal is to propose the notions of $\mu$Lclosed, $q$compact and $q$Lindelöf spaces in generalized topological spaces. A number of properties concerning those new spaces are investigated and the ...

On $B^{ic}$open set and $B^{ic}$continuous function in topological spaces
(Semnan University, 20220101)In this paper, we have introduced a new class of sets in topological space called $B^{ic}$open set and we have introduced and study the properties of $B^{ic}$continuous function and topological properties.

On an equation characterizing multiquartic mappings and its stability
(Semnan University, 20220101)In this paper, we define and investigate the mappings of several variables which are quartic in each variable. We show that such mappings can be unified as an equation, say the multiquartic functional equation. We also ...

On existence of solutions for some functional integral equations in Banach algebra by fixed point theorem
(Semnan University, 20220101)In this research, we analyze the existence of solution for some nonlinear functional integral equations using the techniques of measures of noncompactness and the Petryshyn's fixed point theorem in Banach space. The results ...

On primary isolated submodules
(Semnan University, 20220101)Let \(L\) be a left module over a ring \(\text{\ S}\) with identity. In this paper, the concept of primary isolated submodules is introduced. We look for relations between this class of submodules and related modules. A ...

On proximally closed mapping
(Semnan University, 20220101)In this paper, we introduce the concept of proximally closed (or $delta$ closed) in the proximity spaces and study some of its properties.

On solving Bratu’s type equation by perturbation method
(Semnan University, 20220101)In this paper, the perturbation method is employed to obtain an approximate solution of some examples of the Bratu equation by choosing the different values of $ \varepsilon $ and comparison with the exact solutions. It ...

On some topological concepts via grill
(Semnan University, 20220101)In this work, the new grill concepts are studied using grill topological spaces and by using some defined sets where the set $\alpha$open sets are defined. Properties of this set and some relationships were presented, in ...

On studying bi\(\Gamma\)algebra and some related concepts
(Semnan University, 20220101)The aim of this research paper is to introduce the concept of bi\(\Gamma\)algebra space (bigamma algebra space). The concept of bi\(\mu\)measurable set in a bi\(\Gamma\)algebra space is defined. With this concept, ...

On the estimation the reliability stressstrength model for the odd Fr`{e}chet inverse exponential distribution
(Semnan University, 20220101)The maximum likelihood estimator employs in this paper to shrinkage estimation procedure for an estimate the system reliability $R$ in the stressstrength model, when the stress and strength are independent and nonidentically ...

On the exact solutions and conservation laws of a generalized (1+2)dimensional JaulentMiodek equation with a power law nonlinearity
(Semnan University, 20220101)In this paper, a generalized (1+2)dimensional JaulentMiodek equation with a power law nonlinearity is examined, which arises in numerous problems in nonlinear science. The computed conservation laws reside in enormously ...

On the invariance properties of VaidyaBonner geodesics via symmetry operators
(Semnan University, 20220101)In the present paper, we try to investigate the Noether symmetries and Lie point symmetries of the VaidyaBonner geodesics. Classification of onedimensional subalgebras of Lie point symmetries are considered. ...

On the location of zeros of generalized derivative
(Semnan University, 20220101)Let $P(z) =displaystyle prod_{v=1}^n (zz_v),$ be a monic polynomial of degree $n$, then, $G_gamma[P(z)] = displaystyle sum_{k=1}^n gamma_k prod_{{v=1},{v neq k}}^n (zz_v),$ where $gamma= (gamma_1,gamma_2,dots,gamma_n)$ ...

On the maximum likelihood, Bayes and expansion estimation for the reliability function of Kumaraswamy distribution under different loos function
(Semnan University, 20220101)This work deals with Kumaraswamy distribution. Maximum likelihood, Bayes and expansion methods of estimation are used to estimate the reliability function. A symmetric Loss function (Degroot and NLINEX) are used to find ...

On the maximum number of limit cycles of a planar differential system
(Semnan University, 20220101)In this work, we are interested in the study of the limit cycles of a perturbed differential system in (mathbb{R}^2), given as follows[left{begin{array}{l}dot{x}=y, dot{y}=xvarepsilon (1+sin ^{m}(theta ))psi ...

On the Nonlinear Impulsive VolterraFredholm Integrodifferential Equations
(Semnan University, 20220101)In this paper, we investigate existence and uniqueness of solutions of nonlinear VolterraFredholm impulsive integrodifferential equations. Utilizing theory of Picard operators we examine data dependence of solutions on ...

The operations effects on the line graphs of simple graphs
(Semnan University, 20220101)The line graph of the graph $Gamma$ denoted by $L(Gamma)$ is a graph with a vertex set consists of the sets of edges of $Gamma$ and two vertices are adjacent in $L(Gamma)$ if they are incident in $Gamma$. In this article, ...

Optimal credit risk model based on metaheuristic particle swarm algorithm and multilayer perceptron neural network
(Semnan University, 20220101)The present study aims to develop a credit portfolio optimization model in the banking industry using a multilayer perceptron artificial neural network with a metaheuristic particle swarm algorithm. Risk, having its own ...

Optimal values range of interval polynomial programming problems
(Semnan University, 20220101)Uncertainty exists in many reallife engineering and mechanical problems. Here, we assume that uncertainties are caused by intervals of real numbers. In this paper, we consider the interval nonlinear programming (INLP) ...