Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Amira A. Ishan"'
Publikováno v:
AIMS Mathematics, Vol 7, Iss 1, Pp 104-120 (2022)
In this article, we study totally real submanifolds in Kaehler product manifold with constant scalar curvature using self-adjoint differential operator □. Under this setup, we obtain a characterization result. Moreover, we discuss δ−invariant pr
Externí odkaz:
https://doaj.org/article/c042793c5bbe43dd97a376c22bd2c158
Autor:
Amira A. Ishan, Meraj Ali Khan
Publikováno v:
AIMS Mathematics, Vol 6, Iss 5, Pp 5256-5274 (2021)
The main objective of this paper is to achieve the Chen-Ricci inequality for biwarped product submanifolds isometrically immersed in a complex space form in the expressions of the squared norm of mean curvature vector and warping functions.The equali
Externí odkaz:
https://doaj.org/article/66b8513892054ca2a4be6ec53affcb2e
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
This research article attempts to investigate anti-invariant Lorentzian submersions and the Lagrangian Lorentzian submersions (LLS) from the Lorentzian concircular structure [in short (LCS)n] manifolds onto semi-Riemannian manifolds with relevant non
Externí odkaz:
https://doaj.org/article/0f452b257e4e4d09b31471500818133e
Publikováno v:
Mathematics, Vol 7, Iss 12, p 1139 (2019)
In this article, we study Jacobi-type vector fields on Riemannian manifolds. A Killing vector field is a Jacobi-type vector field while the converse is not true, leading to a natural question of finding conditions under which a Jacobi-type vector fie
Externí odkaz:
https://doaj.org/article/0101f1e7cd284d0fa8bf9c3e2096cfef
Publikováno v:
Mathematics, Vol 7, Iss 6, p 547 (2019)
We introduce log-preinvex and log-invex functions on a Riemannian manifold. Some properties and relationships of these functions are discussed. A characterization for the existence of a global minimum point of a mathematical programming problem is pr
Externí odkaz:
https://doaj.org/article/6d9371ee858145aa875697da41135ee3
Autor:
Sharief Deshmukh, Amira A. Ishan
Publikováno v:
AIMS Mathematics, Vol 7, Iss 2, Pp 3056-3066 (2022)
A characterization of an $ m $-sphere $ \mathbf{S}^{m}(a) $ is obtained using a non-trivial torse-forming vector field $ \zeta $ on an $ m $-dimensional Riemannian manifold.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bde08d94f8ac4a94032565f3ae0a3a0f
https://doi.org/10.3934/math.2022169
https://doi.org/10.3934/math.2022169
Autor:
Amira A. Ishan
Publikováno v:
Mathematical Problems in Engineering, Vol 2021 (2021)
The present paper studies the applications of Obata’s differential equations on the Ricci curvature of the pointwise semislant warped product submanifolds. More precisely, by analyzing Obata’s differential equations on pointwise semislant warped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f09e14db46258496a7d0c09e5d17f54e
https://doi.org/10.1155/2021/6752252
https://doi.org/10.1155/2021/6752252
Autor:
Meraj Ali Khan, Amira A. Ishan
Publikováno v:
AIMS Mathematics, Vol 6, Iss 5, Pp 5256-5274 (2021)
The main objective of this paper is to achieve the Chen-Ricci inequality for biwarped product submanifolds isometrically immersed in a complex space form in the expressions of the squared norm of mean curvature vector and warping functions.The equali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9ab24d3b6b7b2c2bbbd440f0084bd68
https://doi.org/10.3934/math.2021311
https://doi.org/10.3934/math.2021311
Publikováno v:
Symmetry
Volume 13
Issue 10
Symmetry, Vol 13, Iss 1937, p 1937 (2021)
Volume 13
Issue 10
Symmetry, Vol 13, Iss 1937, p 1937 (2021)
This research paper is dedicated to the study of a class of boundary value problems for a nonlinear, implicit, hybrid, fractional, differential equation, supplemented with boundary conditions involving general fractional derivatives, known as the ϑ-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffc47a8c7c998031f208c0f0a87b5271
Publikováno v:
Mathematics, Vol 9, Iss 1887, p 1887 (2021)
Mathematics
Volume 9
Issue 16
Mathematics
Volume 9
Issue 16
In this paper, we study 3-dimensional compact and connected trans-Sasakian manifolds and find necessary and sufficient conditions under which these manifolds are homothetic to Sasakian manifolds. First, four results in this paper deal with finding ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a09729cfc151bd4a1c79955ac58cce1
https://www.mdpi.com/2227-7390/9/16/1887
https://www.mdpi.com/2227-7390/9/16/1887