Results 31 to 40 of about 148 (137)

Pseudoparallel anti-invariant submanifolds of kenmotsu manifolds

open access: yes, 2010
We consider an anti-invariant, minimal, pseudoparallel and Ricci-generalized pseudoparallel submanifold M of a Kenmotsu space form (M) over tilde (c), for which xi is tangent to M.
Sular, Sibel   +2 more
openaire   +5 more sources

Cohomology of semi-invariant submanifolds of cosymplectic manifolds

open access: yesMANAS: Journal of Engineering, 2021
In this paper, we study de Rham cohomology class for semi-invariant submanifolds of a cosymplectic manifold. We show that there are de Rham cohomolgy class on semi-invariant submanifold of a cosymplectic manifold.
Ramazan Sarı
doaj  

Characterization of GCR-lightlike warped product of indefinite Sasakian manifolds

open access: yesArab Journal of Mathematical Sciences, 2014
In this paper we prove that there do not exist warped product GCR-lightlike submanifolds in the form M = N⊥ × λNT such that N⊥ is an anti-invariant submanifold tangent to V and NT an invariant submanifold of M‾, other than GCR-lightlike product in an ...
Rakesh Kumar   +3 more
doaj   +1 more source

Warped Product Submanifolds of Riemannian Product Manifolds

open access: yesAbstract and Applied Analysis, 2012
We study warped product of the type Nθ×fNT and Nθ×fN⊥, where Nθ, NT, and N⊥ are proper slant, invariant, and anti-invariant submanifolds, respectively, and we prove some basic results and finally obtain some inequalities for squared norm of second ...
Falleh R. Al-Solamy, Meraj Ali Khan
doaj   +1 more source

Anti-invariant submanifolds of almost contact metric manifolds

open access: yesMathematische Annalen, 1977
Let M be a submanifold of a Riemannian manifold ]fir and P an endomorphism of the tangent bundle T M of M. If F T x M 3_T ,M for each point x¢ M, we say that M is an anti-invariant submanifold of M under F. If P is an almost complex structure, then such M are usually called totally real submanifolds and have been studied by various authors [1, 3, 5-7].
Yano, Kentaro   +2 more
openaire   +1 more source

Invariant, anti-invariant and slant submanifolds of a metallic manifold

open access: yesNovi Sad Journal of Mathematics, 2018
Summary: Properties of invariant, anti-invariant and slant isometrically immersed submanifolds of metallic Riemannian manifolds are given with a special view towards the induced \(\Sigma \)-structure. Examples of such metallic manifolds are also given.
Blaga, Adara M., Hreţcanu, Cristina E.
openaire   +2 more sources

Skew semi-invariant submanifolds of generalized quasi-Sasakian manifolds

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2018
In the present paper,  we study a new class of submanifolds of a generalized Quasi-Sasakian manifold, called skew semi-invariant submanifold. We obtain integrability conditions of the distributions on a skew semi-invariant submanifold and also find the ...
M.D. Siddiqi, A. Haseeb, M. Ahmad
doaj   +1 more source

Identifiability of points and rigidity of hypergraphs under algebraic constraints

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 1, July 2026.
Abstract The identifiability problem arises naturally in a number of contexts in mathematics and computer science. Specific instances include local or global rigidity of graphs and unique completability of partially‐filled tensors subject to rank conditions.
James Cruickshank   +3 more
wiley   +1 more source

Cohomogeneity‐one solitons in Laplacian flow: Local, smoothly‐closing and steady solitons

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract We initiate a systematic study of cohomogeneity‐one solitons in Bryant's Laplacian flow of closed G2$\text{G}_2$‐structures on a 7‐manifold, motivated by the problem of understanding finite‐time singularities of that flow. Here, we focus on solitons with symmetry groups Sp(2)${\rm Sp}(2)$ and SU(3)${\rm SU}(3)$; in both cases, we prove the ...
Mark Haskins, Johannes Nordström
wiley   +1 more source

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