Now showing items 1-10 of 26
Critical elements of proper discrete Morse functions [Article]
(Editorial Board of Mathematica Pannonica, 2008)
The aim of this paper is to study the notion of critical element of a proper discrete Morse function defined on non-compact graphs and surfaces. It is an extension to the non-compact case of the concept of critical simplex ...
Generalized S-space-forms with two structure vector fields [Article]
(De Gruyter, 2010-01)
We introduce and study generalized S-space-forms with two structure vector fields. We also present several examples of these manifolds such as certain hypersurfaces of Sasakianspace-forms, principal toroidal bundles and ...
Some relationships between intrinsic and extrinsic invariants of submanifolds in generalized S-space-forms [Article]
(Hacettepe University, 2015)
We establish some inequalities of Chen’s type between certain intrinsic invariants (involving sectional, Ricci and scalar curvatures) and the squared mean curvature of submanifolds tangent to the structure vector fields ...
Submanifolds weakly associated with graphs [Article]
(Indian Academy of Sciences, 2009-06)
We establish an interesting link between differential geometry and graph theory by defining submanifolds weakly associated with graphs. We prove that, in a local sense, every submanifold satisfies such an association, and ...
A classification of totally F-umbilical submanifolds of an S-manifold [Article]
(Soochow University, Department of Mathematics, 1992-04)
In this note a classification theorem for totally f-umbilical submanifolds of an S-space form is obtained.
Lagrangian submanifolds in complex space forms, the Maslov form in S-manifolds, generalized S-space forms and n-Einstein para-S manifolds [PhD Thesis]
In this memory we present ve papers which have been published as a result of our researching, part of which has been done at the Department of Geometry and Topology of the University of Seville, thanks to a predoctoral ...
Induced structures on slant submanifolds of metric F-manifolds [Article]
(Indian National Science Academy, 2008-10)
We study whether it is possible to obtain an induced structure on a slant submanifold of a metric f-manifold. Moreover, we give conditions for any isometric immersion between two metric fmanifolds to be slant and we prove ...
CR-products of S-manifolds [Article]
(Sociedade Portuguesa de Matemática, 1990)
In this paper certain CR-submanifolds namely the CR-products, are studied. A characterization theorem is given and the case of CR-products of S-manifolds whose invariant f-sectional curvature is constant, is investigated.
On certain anti-invariant submanifolds of an S-manifold [Article]
(Sociedade Portuguesa de Matemática, 1993)
In this paper, the geometry of certain anti-invariant submanifolds of an S-manifold, namely those which are normal to the structure vector fields, is studied.
Transversalidad en 2-complejos [PhD Thesis]
"Si bien el problema de la Transversalidad ha sido ampliamente estudiado en la Teoría de Grafos, los 2-complejos de Euler ha sido tratados, hasta el momento, dentro del marco de la Topología Algebraica. El objetivo central ...