II WORKSHOP :NOVA FÍSICA NO ESPAÇO

VOLTAR         INTRODUÇÃO

 

Reinaldo R. Rosa

 

GRADIENT PATTERN ANALYSIS OF TOPOLOGICAL
DEFORMATIONS IN DYNAMICAL MANIFOLDS

 

Cristiane P. Camilo, Reinaldo R. Rosa, N. Vijaykumar, Fernando M. Ramos(1)

 and Marcelo Rebouças(2)

(1) INPE

(2) CBPF

 

Characterization of local response due to topological deformation in extended dynamical manifolds is a key problem to understand the role of geometrical singularities to the global stability of the manifold during its spatio-temporal evolution. Here, we present a 2D single extended dynamical manifold based on the Laplacian of a scalar function on a triangulated surface. This surface is divided in two regions: (a) where a local deformation occurs and (b) where the effect of this deformation reaches. The application of the Gradient Pattern Analysis on these regions under different deformations shows that the topological deformation is undetectable if the local asymmetry is Less than a critical value depending on the manifold extension. We also discuss the deformation detectability in hyperbolic manifolds and its application for direct recognition of multiple images in cosmological topologies.