Monthly Journal: Publishes the methodological and theoretical role of mathematics and mathematical applications underpinning scientific research.
Peer-reviewed, citable articles published ahead of their issue.
Zühal Küçükarslan Yüzbas, Ebru Cavlak Aslan, Dae Won Yoon
In this paper: In this work, we study time evolution equations of null curves according to acceleration vector fields in Minkowski 3-space. First of all, we find a solution of the nonlinear system of time evolution...
Stefan M. Stefanov
In this paper: Some results concerning representation of convex sets are stated and proved.
M. Ghorbel, S. Zouari
In this paper: This paper aims to explore arithmetic properties in the set of p-adic β-integers. We show that the quantities Lʘ and L⊕ are finite if β is an algebraic integer of odd degree. Here, Lʘ (resp. L⊕) denot...
Houas Mohamed, Maamar Benbachir
In this paper: In the current paper, we study a nonlinear fractional differential problems with two arbitrary orders. The existence and uniqueness of solutions for the considered problem by applying a number of fixe...
Kallal Pal, Sumit Chandok
In this paper: In this paper, we introduce the notion of ρλ-orthogonality via 2-normed derivatives and discuss some of its essential geometric properties in the context of 2-𝒩𝒮. Moreover, we also discuss the relatio...
M. Yaremenko
In this paper: The article is dedicated to the investigation of existence of weak solutions to a quasilinear elliptic equation involving terms with variable exponents –d/dxi ai (x, u, ∇u) – λb (x) |u|p(x) − 2 u = f...
I. Y. Popov, N. A. Perezhogin, A. I. Popov
In this paper: Model of point-like source of earthquake is suggested in the framework of PREM model of the Earth. The Earth is considered to be composed of two liquid (ocean and the outer core) and six solid layers....
Houas Mohamed
In this paper: In this article, we study a Duffing problem include two sequential fractional derivatives, we prove the existence and uniqueness results using some classical fixed point theorems. The UML-stability of...
Youssef Essadaoui, Amine Laghrib, Imad Hafidi
In this paper: In this paper, we investigate the dynamic behavior of a lubricated mechanism in the incompressible case. The goal is to develop a mathematical model that describes the motion of the upper surface, bas...
Stefan M. Stefanov
In this paper: The quasiconvex functions are considered, and some properties of these functions are stated and proved in this paper.
Satyawan L. Dhondge, Vaijanath L. Chinchane, Gajendra R. Gandhe, Manisha B. Sakhare, Sabri T. M. Thabet, Imed Kedim
In this paper: This paper explores the mathematical modeling of thermoelastic stress in a perfectly clamped metallic rod using the Adomian Decomposition Method (ADM). The study focuses on formulating and solving the...
Stefan M. Stefanov
In this paper: In this paper, the applications of fuzzy sets to decision making are considered. The Bellman-Zadeh approach is discussed, and decision making in the set of alternatives is studied. This paper is conti...
Stefan M. Stefanov
In this paper: In this paper, extreme points of the convex sets are considered. Some properties of the extreme points are stated and proved.
M. H. M. Rashid
In this paper: This work explores new upper bounds for the q-numerical radius of Y ∈ L(K), extending and strengthening existing advancements in the field. Specific instances of q-numerical radius inequalities for op...
Khalid Bouabid, Hayat Ben Ennia, Rachid Echarghaoui
In this paper: Using concentration estimates along with the Fountain Theorem and its dual form, we establish the existence of two infinite and disjoint sets of solutions for the following Neumann elliptic system inv...
Yapeng Shi, Yuqiang Feng, Jicheng Yu
In this paper: Herein, we extend the framework of Lie symmetry group theory and conservation laws to analyze the (2+1)-dimensional time-fractional Sakovich equation ((2+1)D-TFSE). The distinctive feature of this equ...
Usaamah Obaidullah, B. Gwaxa
In this paper: This work investigates a nonlinear European option pricing equation under a continuous-time Capital Asset Pricing Model. In particular, we determine its point symmetries and thereby find analytical so...
Mehmet Pakdemirli
In this paper: A new function, namely the Gamma Interval Function is defined first. The function is used in modelling physically inspired problems of first and second order differential equations. The differential e...
Mustapha Maadani, Abdelkader Benali, Aissa Nasli Bakir
In this paper: This paper introduces a novel class of operators in semi-Hilbertian spaces, termed class Ak# operators, which generalizes the well-studied A-hyponormal operators and extends recent developments in ope...
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