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SCALESPACE
2007
Springer
13 years 11 months ago
Numerical Invariantization for Morphological PDE Schemes
Abstract. Based on a new, general formulation of the geometric method of moving frames, invariantization of numerical schemes has been established during the last years as a powerf...
Martin Welk, Pilwon Kim, Peter J. Olver
APPML
2010
88views more  APPML 2010»
13 years 5 months ago
Evolution of weak discontinuities in shallow water equations
In this paper, we determine the critical time, when a weak discontinuity in the shallow water equations culminates into a bore. Invariance group properties of the governing system...
T. Raja Sekhar, V. D. Sharma
IMAGING
2003
13 years 6 months ago
Group Theoretical Invariants in Color Image Processing
Many image formation processes are complex interactions of several sub-processes and the analysis of the resulting images requires often to separate the influence of these sub-pr...
Reiner Lenz, Linh Viet Tran, Thanh Hai Bui
CSJM
2008
91views more  CSJM 2008»
13 years 5 months ago
An algebraic approach to a study of two-dimensional affine differential system
In a present paper a problem of classification of Aff(2, R)orbits' dimensions is considered on example of an autonomous two-dimensional affine differential system of first or...
E. Naidenova