CHARACTERIZATION OF LINEAR AND NONLINEAR STRUCTURE IN HIGH-DIMENSIONAL, SPATIALLY EXTENDED SYSTEMS: THE ALGORITHM OF MULTICHANNEL NONLINEAR CROSS PREDICTION

2000 ◽  
Author(s):  
C. J. STAM ◽  
W.S. PRITCHARD
Keyword(s):  
High Dimensional ◽  
Cross Prediction ◽  
Nonlinear Structure ◽  
Extended Systems ◽  
Spatially Extended ◽  
Spatially Extended Systems ◽  
Linear And Nonlinear

CHARACTERIZATION OF ASYMMETRIC FRAGMENTATION PATTERNS IN SPATIALLY EXTENDED SYSTEMS

1999 ◽  
Vol 10 (01) ◽  
pp. 147-163 ◽  
Author(s):  
R. R. ROSA ◽  
A. S. SHARMA ◽  
J. A. VALDIVIA
Keyword(s):  
Structural Complexity ◽  
Quantitative Measure ◽  
Gradient Field ◽  
Extended Systems ◽  
Fragmentation Parameter ◽  
Spatially Extended ◽  
Spatially Extended Systems ◽  
Spatio Temporal ◽  
Fragmentation Patterns

Spatially extended systems yield complex patterns arising from the coupled dynamics of its different regions. In this paper we introduce a matrix computational operator, [Formula: see text], for the characterization of asymmetric amplitude fragmentation in extended systems. For a given matrix of amplitudes this operation results in an asymmetric-triangulation field composed by L points and I straight lines. The parameter (I-L)/L is a new quantitative measure of the local complexity defined in terms of the asymmetry in the gradient field of the amplitudes. This asymmetric fragmentation parameter is a measure of the degree of structural complexity and characterizes the localized regions of a spatially extended system and symmetry breaking along the evolution of the system. For the case of a random field, in the real domain, which has total asymmetry, this asymmetric fragmentation parameter is expected to have the highest value and this is used to normalize the values for the other cases. Here, we present a detailed description of the operator [Formula: see text] and some of the fundamental conjectures that arises from its application in spatio-temporal asymmetric patterns.

Observation of Chaotic Attractor in Spatially Extended Systems: Coarse-Grained Dimension of Frozen Chaos

1999 ◽  
Vol 38 (Part 1, No. 6A) ◽  
pp. 3784-3792
Author(s):  
Donghak Choi ◽  
Nobuko Fuchikami ◽  
Eriko Hirokami ◽  
Shunya Ishioka ◽  
Masayoshi Naito
Keyword(s):  
Chaotic Attractor ◽  
Coarse Grained ◽  
Extended Systems ◽  
Spatially Extended ◽  
Spatially Extended Systems
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