Zobrazeno 1 - 10
of 110
pro vyhledávání: '"W. M. Mahmoud"'
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 27, Iss 1, Pp 1-17 (2019)
Abstract In this paper, we have a tendency to investigate a particular Weingarten and linear Weingarten varieties of canal surfaces according to Bishop frame in Euclidean 3-space E 3 satisfying some fascinating and necessary equations in terms of the
Externí odkaz:
https://doaj.org/article/0a594fef75d14a159413f5c2c43f8fda
Autor:
E. M. Solouma, W. M. Mahmoud
Publikováno v:
Journal of the Egyptian Mathematical Society, Vol 27, Iss 1, Pp 1-17 (2019)
Abstract In this paper, we introduce the equiform-Bishop frame of a spacelike curve r lying fully on S12 $S_{1}^{2}$ in Minkowski 3-space ℝ13 $\mathbb {R}^{3}_{1}$. By using this frame, we investigate the equiform-Bishop Frenet invariants of specia
Externí odkaz:
https://doaj.org/article/ecb5baaff436498fb22d7b28ad6234e0
Publikováno v:
EQUATIONS. 3:1-8
This research aims to study Darboux sweeping surface in isotropic space I1 3 . We went through the geometric characteristics of sweeping surfaces in I1 3 . The first and second fundamental forms of the sweeping surface were evaluated. Furthermore, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a15a8fffbdd582d786a087eec8662739
https://doi.org/10.37394/232021.2023.3.1
https://doi.org/10.37394/232021.2023.3.1
Publikováno v:
Mathematics and Statistics. 11:373-378
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85ec8eb836b41139f145c38580d9fd4c
https://doi.org/10.13189/ms.2023.110216
https://doi.org/10.13189/ms.2023.110216
Publikováno v:
Astrophysics and Space Science. 368
This paper presents a standalone predictive model for Atomic Oxygen (AO), Coronal Mass Ejections (CMEs) and other space-environment parameters. The prediction is based on the numerical method of Holt–Winter’s triple smooth exponential forecasting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb90cb794f283119a8d02af9f700173c
https://doi.org/10.1007/s10509-023-04170-w
https://doi.org/10.1007/s10509-023-04170-w
We investigate the equiform Hasimoto surfaces P(σ, ℓ) in Minkowski 3-space in this paper. In E 3 1 , in different three cases, the geometric properties of equiform Hasimoto surfaces are discussed. For each case, the equiform Gaussian and mean curv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eccebaefa56b5a0c8a322240ebf2b10c
https://doi.org/10.21203/rs.3.rs-2203628/v1
https://doi.org/10.21203/rs.3.rs-2203628/v1
Autor:
Alaa Hassan Noreldeen, W. M. Mahmoud
Publikováno v:
WSEAS TRANSACTIONS ON MATHEMATICS. 19:683-698
In this paper, we study inextensible flows of spacelike curves lying fully on a spacelike surface Ω according to equiform frame in 4-dimensional Minkowski space ℝ1 4 . We give necessary and sufficient conditions for this inextensible flows which a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8e56f27e2a47b73a5fdde516873a4ee
https://doi.org/10.37394/23206.2020.19.75
https://doi.org/10.37394/23206.2020.19.75
Publikováno v:
International Journal of Aeronautical and Space Sciences. 22:726-733
Atomic oxygen (AO) is a major threat to satellites in Low Earth Orbits (LEO). AO causes serious damage to satellites such as erosion, corrosion and damage to almost all satellites surfaces. This study presents numerical prediction for the space envir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06c2ef8843a9e07db64f80724f76e503
https://doi.org/10.1007/s42405-020-00336-w
https://doi.org/10.1007/s42405-020-00336-w
Publikováno v:
Russian Journal of General Chemistry. 90:148-153
An efficient synthesis and fluorescent properties of a new series of fused pyrimidine derivatives are described. Condensation of aminopyrimidine derivative 1 with acetophenone leads to olefinic pyrimidine 2, various addition-cyclization reactions of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a583bdb35e4bbe72232aae5fce8489e
https://doi.org/10.1134/s1070363220010235
https://doi.org/10.1134/s1070363220010235
Publikováno v:
International Journal of Scientific and Research Publications (IJSRP). 12:233
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45abb219852fcad05cd094668029ead9
https://doi.org/10.29322/ijsrp.12.02.2022.p12235
https://doi.org/10.29322/ijsrp.12.02.2022.p12235