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- Gaziantep UniversityTR22 papers
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9 papers · 1 filter
Two groups 2^3.PSL_2(7) and 2^3:PSL_2(7) of order 1344
Mehmet Koca, Ramazan Koc, Nazife Ozdes Koca
We analyze the group structures of two groups of order 1344 which are respectively non-split and split extensions of the elementary Abelian group of order 8 by its automorphism gro…
Modelling of a compact anisotropic star as an anisotropic fluid sphere in gravity
D. Momeni, G. Abbas, S. Qaisar +2
In this paper, we have studied the new exact model of anisotropic star in theory of gravity. The dynamical equations in theory with the anisotropic fluid have been so…
SU(5) Grand Unified Theory, its Polytopes and 5-fold Symmetric Aperiodic Tiling
Mehmet Koca, Nazife Ozdes Koca, Abeer Al Siyabi
We associate the lepton-quark families with the vertices of the 4D polytopes 5-cell and the rectified 5-cell derived from the SU(5) Coxeter-Dynkin diagram. The off-diagonal gauge b…
Surface tension of highly magnetized degenerate quark matter
G. Lugones, A. G. Grunfeld
We study the surface tension of highly magnetized three flavor quark matter within the formalism of multiple reflection expansion (MRE). Quark matter is described as a mixture of f…
4D Pyritohedral Symmetry with Quaternions, Related Polytopes and Lattices
Mehmet Koca, Nazife Ozdes Koca, Amal Juma Hamood Al-Qanobi
We describe extension of the pyritohedral symmetry to 4-dimensional Euclidean space and present the group elements in terms of quaternions. It turns out that it is a maximal subgro…
Optimal error analysis of a FEM for fractional diffusion problems by energy arguments
Samir Karaa, Kassem Mustapha, Amiya K. Pani
In this article, the piecewise-linear finite element method (FEM) is applied to approximate the solution of time-fractional diffusion equations on bounded convex domains. Standard…