Results 11 to 20 of about 245,049 (165)

hα-Open Sets in Topological Spaces [PDF]

open access: yesمجلة التربية والعلم, 2022
In our work we introduced a new type of open sets is defined as follows: If for each set that is not empty M in X, M≠X and M ∈τ^∝such that A ⊆ int(A∪M). then A in (X,τ) is named h∝-open set. We also go through the relationship between h∝- open sets and a
Baedaa Abdullah   +2 more
doaj   +1 more source

An Application of the t-Extension of the p-Fibonacci Pascal Matrix in Coding Theory

open access: yesAdvances in Mathematical Physics, 2022
We consider the t-extension of the p-Fibonacci Pascal matrix. First, we study the k-th power of the t-extension of the p-Fibonacci lower and upper triangular Pascal matrix.
Elahe Mehraban, Mansour Hashemi
doaj   +1 more source

A (Discrete) Homotopy Theory for Geometric Spaces

open access: yesJournal of Mathematics, 2023
We define the concepts of homotopy and fundamental group for geometric spaces as a generalization of metric spaces, digital spaces, and graphs; then, we compare them with corresponding concepts in these spaces.
Asieh Pourhaghani, Hamid Torabi
doaj   +1 more source

Degree-Based Topological Indices and QSPR Analysis of Antituberculosis Drugs

open access: yesJournal of Chemistry, 2022
A topological index of graph G is a numerical quantity which describes its topology. If it is applied to molecular structure of a chemical compounds, then it reflects the theoretical properties of the chemical compounds.
Mr. Adnan   +3 more
doaj   +1 more source

Cohen Positive Strongly p-Summing and p-Dominated m-Homogeneous Polynomials

open access: yesJournal of Mathematics, 2021
We introduce the concepts of Cohen positive strongly p-summing and positive p-dominated m-homogeneous polynomials. The version of Pietsch’s domination theorem for the first class among other results and a Bu-type theorem is proved, as well as some ...
Halima Hamdi   +4 more
doaj   +1 more source

On Measure Chaotic Dynamical Systems [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
In this paper, we introduce chaotic measure for discrete and continuous dynamical systems and study some properties of measure chaotic systems. Also relationship between chaotic measure, ergodic and expansive measures is investigated. Finally, we prove a
Faride Ghorbani Moghaddam   +2 more
doaj   +1 more source

Radio Labelings of Lexicographic Product of Some Graphs

open access: yesJournal of Mathematics, 2021
Labeling of graphs has defined many variations in the literature, e.g., graceful, harmonious, and radio labeling. Secrecy of data in data sciences and in information technology is very necessary as well as the accuracy of data transmission and different ...
Muhammad Shahbaz Aasi   +3 more
doaj   +1 more source

Action of vectorial Lie superalgebras on some split supermanifolds [PDF]

open access: yesCommunications in Mathematics, Volume 30 (2022), Issue 3 (Special issue: in memory of Arkady Onishchik) (December 14, 2022) cm:10455, 2022
The "curved" super Grassmannian is the supervariety of subsupervarieties of purely odd dimension $k$ in a~supervariety of purely odd dimension $n$, unlike the "usual" super Grassmannian which is the supervariety of linear subsuperspacies of purely odd dimension $k$ in a~superspace of purely odd dimension $n$.
arxiv   +1 more source

Simultaneous generation for zeta values by the Markov-WZ method [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Combinatorics
Khodabakhsh Hessami Pilehrood   +1 more
doaj   +1 more source

Two-Phase Turbulent Fluid Flow in a Geothermal Pipe with Chemical Reaction

open access: yesJournal of Applied Mathematics, 2022
In this study, two-phase non-Newtonian turbulent fluid flow in an inclined geothermal pipe with chemical reaction was considered. The governing nonlinear partial differential equations derived were solved numerically using Finite Difference Method ...
Nyariki M. Eric   +2 more
doaj   +1 more source

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