Results 81 to 90 of about 667,453 (193)

Pseudo-Sasakian manifolds endowed with a contact conformal connection

International Journal of Mathematics and Mathematical Sciences, 1986
Pseudo-Sasakian manifolds M˜(U,ξ,η˜,g˜) endowed with a contact conformal connection are defined.
Vladislav V. Goldberg, Radu Rosca
doaj   +1 more source

Geometric topology of CR-warped products in six-dimensional sphere

AIMS Mathematics
In this paper, we prove that a three-dimensional CR-warped product submanifold of a nearly Kaehler six-dimensional sphere, under some restrictions, contains finite fundamental groups.
Noura M. Alhouiti, F. Mofarreh, F. Alghamdi, Akram Ali, Piscoran-Ioan Laurian   +4 more
semanticscholar   +1 more source

Every finite graph arises as the singular set of a compact 3‐D calibrated area minimizing surface

Communications on Pure and Applied Mathematics, Volume 77, Issue 9, Page 3670-3707, September 2024.
Abstract Given any (not necessarily connected) combinatorial finite graph and any compact smooth 6‐manifold M6$M^6$ with the third Betti number b3≠0$b_3\not=0$, we construct a calibrated 3‐dimensional homologically area minimizing surface on M$M$ equipped in a smooth metric g$g$, so that the singular set of the surface is precisely an embedding of this
Zhenhua Liu
wiley   +1 more source

Contact CR Submanifolds of maximal Contact CR dimension of Sasakian Space Form

پژوهش‌های ریاضی, 2020
In this paper, we investigate contact CR submanifolds of contact CR dimension in Sasakian space form and introduce the general structure of these submanifolds and then studying structures of this submanifols with the condition  h(FX,Y)+h(X,FY)=g(FX,Y ...
Mohammad Ilmakchi, Esmaiel Abedi
doaj  

Valuations, completions, and hyperbolic actions of metabelian groups

Journal of the London Mathematical Society, Volume 109, Issue 6, June 2024.
Abstract Actions on hyperbolic metric spaces are an important tool for studying groups, and so it is natural, but difficult, to attempt to classify all such actions of a fixed group. In this paper, we build strong connections between hyperbolic geometry and commutative algebra in order to classify the cobounded hyperbolic actions of numerous metabelian
Carolyn R. Abbott, Sahana Balasubramanya, Alexander J. Rasmussen   +2 more
wiley   +1 more source

Stabilization distance bounds from link Floer homology

Journal of Topology, Volume 17, Issue 2, June 2024.
Abstract We consider the set of connected surfaces in the 4‐ball with boundary a fixed knot in the 3‐sphere. We define the stabilization distance between two surfaces as the minimal g$g$ such that we can get from one to the other using stabilizations and destabilizations through surfaces of genus at most g$g$.
András Juhász, Ian Zemke
wiley   +1 more source

Approximation and convergence of formal CR-mappings

, 2002
Let $M\subset C^N$ be a minimal real-analytic CR-submanifold and $M'\subset C^{N'}$ a real-algebraic subset through points $p\in M$ and $p'\in M'$. We show that that any formal (holomorphic) mapping $f\colon (C^N,p)\to (C^{N'},p')$, sending $M$ into $M'$,
Meylan, Francine, Mir, Nordine, Zaitsev, Dmitri   +2 more
core   +3 more sources

On Warped Product Pointwise Pseudo-Slant Submanifolds of LCK-Manifolds and Their Applications

Axioms
The concept of pointwise slant submanifolds of a Kähler manifold was presented by Chen and Garay. This research extends this notion to a more general setting, specifically in a locally conformal Kähler manifold. We study the pointwise pseudo-slant warped
Fatimah Alghamdi
doaj   +1 more source

Compact homogeneous Leviflat CR-manifolds. [PDF]

Complex Analysis Synerg, 2021
Al-Abdallah AR, Gilligan B.
europepmc   +1 more source

Ultradifferentiable CR manifolds

, 2017
In this article the notion of ultradifferentiable CR manifold is introduced and an ultradifferentiable regularity result for finitely nondegenerate CR mappings is proven.
Fürdös, Stefan
core