Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Ali. H. Alkhaldi"'
Publikováno v:
AIMS Mathematics, Vol 8, Iss 6, Pp 13875-13888 (2023)
In this paper, we study the singularities on a non-developable ruled surface according to Blaschke's frame in the Euclidean 3-space. Additionally, we prove that singular points occur on this kind of ruled surface and use the singularity theory techni
Externí odkaz:
https://doaj.org/article/19180220bf3444e5bdd4e153331a73d1
Publikováno v:
AIMS Mathematics, Vol 7, Iss 9, Pp 16054-16066 (2022)
In this study, we seek to establish new upper bounds for the mean curvature and constant sectional curvature of the first positive eigenvalue of the α-Laplacian operator on Riemannian manifolds. More precisely, various methods are used to determine
Externí odkaz:
https://doaj.org/article/8c2cedac89d0447985d0d0dcb3a16fe8
Publikováno v:
AIMS Mathematics, Vol 7, Iss 4, Pp 7069-7092 (2022)
The objective of this paper is to achieve the inequality for Ricci curvature of a semi-slant warped product submanifold isometrically immersed in a generalized complex space form admitting a nearly Kaehler structure in the expressions of the squared
Externí odkaz:
https://doaj.org/article/b6ce33078d5747ef80e0572864f33619
Publikováno v:
AIMS Mathematics, Vol 6, Iss 6, Pp 5886-5895 (2021)
The main objective of this paper is to investigate topological properties from the view point of compact warped product submanifolds of a space form with the vanishing constant sectional curvature. That is, we prove the non-existence of stable integr
Externí odkaz:
https://doaj.org/article/0be2549f9cf54ef9a6d59f3b3146c961
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
This study attempts to establish new upper bounds on the mean curvature and constant sectional curvature of the first positive eigenvalue of the ψ − Laplacian operator on Riemannian manifolds. Various approaches are being used to find the first ei
Externí odkaz:
https://doaj.org/article/14f823746aaf49fa9f3efb4a5a1bb6cf
Publikováno v:
Journal of Taibah University for Science, Vol 14, Iss 1, Pp 322-330 (2020)
Our main objective of this paper is to derive the relationship between the main extrinsic invariant, and the contact CR δ-invariant (new intrinsic invariant) on a generic submanifold in trans-Sasakian generalized Sasakian space forms. Further, we fi
Externí odkaz:
https://doaj.org/article/613cf28f6a1f4f099a1ff6eb4c41e65a
Publikováno v:
Results in Physics, Vol 29, Iss , Pp 104712- (2021)
This paper aims to formulate exact solutions of anisotropic gravitating source with the cosmological constant in (n+2) dimensional spacetime, which may lead to collapse or expansion. We have considered the expansion scalar to be negative and positive
Externí odkaz:
https://doaj.org/article/565ca9676d7c4d489d85181245ede11a
Publikováno v:
Mathematics, Vol 10, Iss 23, p 4580 (2022)
A complete Riemannian manifold equipped with some potential function and an invariant conformal measure is referred to as a complete smooth metric measure space. This paper generalizes some integral inequalities of the Hardy type to the setting of a
Externí odkaz:
https://doaj.org/article/0b009fe973f54c4dab496dce5c6fb4b5
Publikováno v:
Mathematics, Vol 10, Iss 20, p 3884 (2022)
In this paper, we prove the nonexistence of stable integral currents in compact oriented warped product pointwise semi-slant submanifold Mn of a complex space form M˜(4ϵ) under extrinsic conditions which involve the Laplacian, the squared norm grad
Externí odkaz:
https://doaj.org/article/fa3ab3b5b5be494a837a5649f1b4976e
Publikováno v:
Advances in Mathematical Physics, Vol 2021 (2021)
In this study, we develop a general inequality for warped product semi-slant submanifolds of type Mn=NTn1×fNϑn2 in a nearly Kaehler manifold and generalized complex space forms using the Gauss equation instead of the Codazzi equation. There are sev
Externí odkaz:
https://doaj.org/article/49e7b676c1404968a05d56dbcc4dcb44