Galoitica: Journal of Mathematical Structures and Applications
Journal DOI
2834-5568ISSN (Online)
The aim of this paper is to study the asymptotic behaviour of the following non-linear third order differential equations in large scale of time 〖〖〖[|u〗^(ˊˊ) (t)|〗^(p-1) u^(ˊˊ) (t)]〗^ˊ+f(t,u(t),u^ˊ (t),u^(ˊˊ) (t)=0 ;p≥1 (1). Many results about this behavior will be presented and discussed in terms of theorems, as well as many related examples will be illustrated.
Read MoreDoi: https://doi.org/10.54216/GJMSA.040101
Vol. 4 Issue. 1 PP. 08-14, (2023)
The objective of this paper is to define the intuitionistic fuzzy subgroup of type (M-N) and to study some of its elementary properties and substructures such as normality, direct and inverse images.Also, many related theorems and examples will be presented and illustrated.
Read MoreDoi: https://doi.org/10.54216/GJMSA.040102
Vol. 4 Issue. 1 PP. 15-20, (2023)
In this paper we study the gamma function and its representation for complex variable, using either a series or an appropriate integral and its applications in solving some types of Integral Equations and their relation to the Riemann zeta function.
Read MoreDoi: https://doi.org/10.54216/GJMSA.040103
Vol. 4 Issue. 1 PP. 21-25, (2023)
This paper is dedicated to introduce some novel topological generalizations of pairwise Lindelöf spaces, which will be called sub-Lindelöf spaces, and to present some results. Also, We suggest two new types of pairwise sublindelöf spaces, as well as types of topological mappings, such as p₁-paralindelöf and p₂-paralindelöf mappings.
Read MoreDoi: https://doi.org/10.54216/GJMSA.040105
Vol. 4 Issue. 1 PP. 29-31, (2023)
A variety of shrinkage methods for estimating unknown parameters has been considered. We derive and compare the shrinkage estimators for the reliability function of the two-parameter exponential distribution. Simulation experiments are used to study the performances of these estimators.
Read MoreDoi: https://doi.org/10.54216/GJMSA.040104
Vol. 4 Issue. 1 PP. 26-28, (2023)