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» A topological characterization of weakness
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APPML
2010
88views more  APPML 2010»
14 years 9 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
DATE
2006
IEEE
135views Hardware» more  DATE 2006»
15 years 3 months ago
FPGA architecture characterization for system level performance analysis
We present a modular and scalable approach for automatically extracting actual performance information from a set of FPGA-based architecture topologies. This information is used d...
Douglas Densmore, Adam Donlin, Alberto L. Sangiova...
VIS
2008
IEEE
134views Visualization» more  VIS 2008»
15 years 10 months ago
A Practical Approach to Morse-Smale Complex Computation: Scalability and Generality
The Morse-Smale (MS) complex has proven to be a useful tool in extracting and visualizing features from scalar-valued data. However, efficient computation of the MS complex for lar...
Attila Gyulassy, Peer-Timo Bremer, Bernd Hamann,...
DM
2008
69views more  DM 2008»
14 years 9 months ago
The signed-graphic representations of wheels and whirls
We characterize all of the ways to represent the wheel matroids and whirl matroids using frame matroids of signed graphs. The characterization of wheels is in terms of topological...
Daniel C. Slilaty, Hongxun Qin
COLOGNETWENTE
2009
14 years 10 months ago
A Simple Linear-Time Recognition Algorithm for Weakly Quasi-Threshold Graphs
: Weakly quasi-threshold graphs form a proper subclass of the well-known class of cographs by restricting the join operation. In this paper we characterize weakly quasi-threshold g...
Stavros D. Nikolopoulos, Charis Papadopoulos