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Behavior of gaussian curvature and mean curvature near non-degenerate singular points on wave fronts
(2016-01-01)
We define cuspidal curvature Kc (resp. normalized cuspidal curvature μc) along cuspidal edges (resp. at a swallowtail singularity) in Riemannian 3-manifolds, and show that it gives a coefficient of the divergent term of ...
Landscape tomography through primordial non-Gaussianity
(American Physical Society, 2018)
In this paper, we show how the structure of the landscape potential of the primordial Universe
may be probed through the properties of the primordial density perturbations responsible for the
origin of the cosmic microwave ...
Wrinkles and splay conspire to give positive disclinations negative curvature
(National Academy of Sciences, 2015-10)
Recently, there has been renewed interest in the coupling between geometry and topological defects in crystalline and striped systems. Standard lore dictates that positive disclinations are associated with positive Gaussian ...
Tópicos de geometria diferencial
(Universidade Estadual Paulista (Unesp), 2011-09-21)
O principal objetivo deste trabalho é confeccionar um texto para alunos de gradua ção na área de Ciências Exatas e da Terra concernente ao estudo da Curvatura Gaussiana e Aplicação de Gauss, Superfícies Mínimas, Teorema ...
Tópicos de geometria diferencial
(Universidade Estadual Paulista (Unesp), 2011-09-21)
O principal objetivo deste trabalho é confeccionar um texto para alunos de gradua ção na área de Ciências Exatas e da Terra concernente ao estudo da Curvatura Gaussiana e Aplicação de Gauss, Superfícies Mínimas, Teorema ...
Hermite Gaussian model for quantum states
(Elsevier Science, 2019-10-15)
In order to characterize quantum states within the context of information geometry, we propose a generalization of the Gaussian model, which we called the Hermite-Gaussian model. We obtain the Fisher-Rao metric and the ...
Tópicos de geometria diferencial
(Universidade Estadual Paulista (UNESP), 2014)
Origin of ultra-light fields during ination and their suppressed non-Gaussianity
(IOP Publishing, 2020)
We study the structure of multi-field inflation models where the primordial curvature perturbation is able to vigorously interact with an ultra-light isocurvature field - a massless fluctuation orthogonal to the background ...
A Equação de Codazzi em superfícies
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Matemática - PPGM, 2011-03-04)
In this work, based on the article The Codazzi Equation for Surfaces by Juan A. Aledo, José M. Espinar and José A. Gálvez [8], we describe some applications of an abstract theory for the Codazzi equation on surfaces. ...
Gaussian curvature
(Wikimedia Commons, 2016)