Results 71 to 80 of about 2,645,047 (151)

Instantaneously complete Ricci flows on surfaces [PDF]

open access: yes
The intention of this thesis is to give a survey of instantaneously complete Ricci flows on surfaces, focussing on the existence and uniqueness of its Cauchy problem.
Giesen, Gregor
core  

Some generalizations of RADO'S inequality

open access: yes, 2011
碩士在本文中,主要以系統化的方式整合文獻資料中與Rado不等式及Popoviciu不等式有相關的不等式。以更簡易的方法(如Jensen不等式和凸函數基本性質)去證明,最後再舉一些例子說明。In this article, mainly in the systematic way to with the Rado''s inequality and Popoviciu''s inequalities are related to inequality.
何振泰; Ho, Chen-Tai
core  

Chen-like Inequalities for Submanifolds in Kähler Manifolds Admitting Semi-Symmetric Non-Metric Connections

open access: yes
The geometry of submanifolds in Kähler manifolds is an important research topic. In the present paper, we study submanifolds in complex space forms admitting a semi-symmetric non-metric connection.
Ion Mihai, Andreea Olteanu
core   +1 more source

On the blow-up of four-dimensional Ricci flow singularities [PDF]

open access: yes, 2013
textIn 2002, Feldman, Ilmanen, and Knopf constructed the first example of a non-trivial (i.e. non-constant curvature) complete non-compact shrinking soliton, and conjectured that it models a Ricci flow singularity forming on a closed four-manifold.
Máximo Alexandrino Nogueira, Davi
core  

B. Y. Chen-Ricci inequalities for anti-invariant Riemannian submersions in Kenmotsu space forms

open access: yesArabian Journal of Mathematics
AbstractThe aim of the present paper is to analyze sharp type inequalities including the scalar and Ricci curvatures of anti-invariant Riemannian submersions in Kenmotsu space forms$$K_{s}(\varepsilon )$$Ks(ε). We give non-trivial examples for anti-invariant Riemannian submersions, investigate some curvature relations between the total space and fibres
openaire   +1 more source

MINKOWSKI INEQUALITY ON COMPLETE RIEMANNIAN MANIFOLDS WITH NONNEGATIVE RICCI CURVATURE [PDF]

open access: yes
We consider Riemannian manifolds of dimension at least 3, with nonnegative Ricci curvature and Euclidean volume growth. For every open bounded subset with smooth boundary we establish the validity of an optimal Minkowski inequality.
Mazzieri L., Fogagnolo M., Benatti L.
core   +1 more source

ISOPERIMETRIC INEQUALITY UNDER KAHLER RICCI FLOW

open access: yes, 2014
Let (M, g(t)) be a Kahler Ricci flow with positive first Chern class. First, we prove a uniform isoperimetric inequality for all time. In the process, we also prove a Cheng-Yau type log gradient bound for positive harmonic functions on (M,g(t)) without ...
Zhang, Qi S., Tian, Gang
core  

Home - About - Disclaimer - Privacy