Results 61 to 70 of about 381,931 (282)
Developable Ruled Surfaces with Constant Mean Curvature Along a Curve
MathematicsIn this work, we study developable ruled surfaces with constant mean curvature along a curve. The mean curvature of developable ruled surfaces generated by indicatrix curves is calculated.
İsmet Gölgeleyen +2 more
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Totally real surfaces in CP2 with parallel mean curvature vector
International Journal of Mathematics and Mathematical Sciences, 1992 It has been shown that a totally real surface in CP2 with parallel mean curvature vector and constant Gaussian curvature is either flat or totally geodesic.
M. A. Al-Gwaiz, Sharief Deshmukh
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A New Approach to Rotational Weingarten Surfaces
Mathematics, 2022 Weingarten surfaces are those whose principal curvatures satisfy a functional relation, whose set of solutions is called the curvature diagram or the W-diagram of the surface.
Paula Carretero, Ildefonso Castro
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Closed 3-dimensional hypersurfaces with constant mean curvature and constant scalar curvature
Duke Mathematical Journal, 1990 The main geometrical result of the paper is that such a hypersurface with non-negative scalar curvature in a space form is isoparametric, i.e. lies in a family of parallel constant mean curvature hypersurfaces.
de Almeida, Sebastião C. +1 more
openaire +3 more sources
FEBS Letters, EarlyView.The pyruvate generator, which causes activation of respiration by extra‐mitochondrial Ca2+, is also present and functional in rat brainstem mitochondria, as it is in other brain regions. This finding is confirmed by experiments with a fully reconstituted malate–aspartate shuttle (MAS).
Grazyna Debska‐Vielhaber +7 more
wiley +1 more source
Submanifolds of Euclidean space with parallel mean curvature vector
International Journal of Mathematics and Mathematical Sciences, 1991 The object of the paper is to study some compact submanifolds in the Euclidean space Rn whose mean curvature vector is parallel in the normal bundle.
Tahsin Ghazal, Sharief Deshmukh
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Submanifolds of constant sectional curvature with parallel or constant mean curvature
Tohoku Mathematical Journal, 1993 We classify isometric immersions with flat normal bundle between spaces of constant sectional curvature if either the mean curvature is parallel or if the manifolds are complete Euclidean spaces and the mean curvature is of constant length.
Dajczer, Marcos, Tojeiro, Ruy
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A general halfspace theorem for constant mean curvature surfaces
, 2011 In this paper, we prove a general halfspace theorem for constant mean curvature surfaces. Under certain hypotheses, we prove that, in an ambient space M^3, any constant mean curvature H_0 surface on one side of a constant mean curvature H_0 surface ...
Mazet, Laurent
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FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
Global pinching theorems of submanifolds in spheres
International Journal of Mathematics and Mathematical Sciences, 2002 Let M be a compact embedded submanifold with parallel mean curvature vector and positive Ricci curvature in the unit sphere S n+p(n≥2 ,p≥1). By using the Sobolev inequalities of P.
Kairen Cai
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