Results 21 to 30 of about 3,119,938 (323)
Mathematical Modeling of Wax Deposition in Field-Scale Crude Oil Pipeline Systems
Journal of Applied Mathematics, 2022 The formation of solid wax crystals, which interlock and form a gel-like layer on the inner wall of the crude oil pipeline, influences the transportation of waxy crude oil. The deposited layer grows continuously and hardens during the oil transportation,
Francis Oketch Ochieng +3 more
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Hydromagnetic Non-Newtonian Fluid Flow in a Convergent Conduit
Journal of Applied Mathematics, 2022 In the present study, a hydromagnetic non-Newtonian (dilatant) fluid flow in a convergent conduit, in the presence of a variable transverse magnetic field, has been investigated.
Njue Caroline Wawira +2 more
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Computing some Laplacian Coefficients of Forests
Journal of Applied Mathematics, 2022 Let G be a finite simple graph with Laplacian polynomial ψG,λ=∑k=0n−1n−kckλk. In an earlier paper, the coefficients cn−4 and cn−5 for forests with respect to some degree-based graph invariants were computed. The aim of this paper is to continue this work
Ali Ghalavand, Ali Reza Ashrafi
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Metric Dimension Threshold of Graphs
Journal of Mathematics, 2022 Let G be a connected graph. A subset S of vertices of G is said to be a resolving set of G, if for any two vertices u and v of G there is at least a member w of S such that du,w≠dv,w.
Meysam Korivand +2 more
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An Application of the t-Extension of the p-Fibonacci Pascal Matrix in Coding Theory
Advances 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
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hα-Open Sets in Topological Spaces [PDF]
مجلة 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
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A (Discrete) Homotopy Theory for Geometric Spaces
Journal 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
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Educational Studies in Mathematics, 2023 The transition from school to university mathematics is a challenging process for many students, which is reflected in high dropout rates during the first year at university.
Sebastian Geisler +2 more
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Degree-Based Topological Indices and QSPR Analysis of Antituberculosis Drugs
Journal 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
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Cohen Positive Strongly p-Summing and p-Dominated m-Homogeneous Polynomials
Journal 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
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