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CAGD
2010
88views more  CAGD 2010»
13 years 7 months ago
Topological mesh operators
Abstract. In this paper we introduce an unified framework for topological manipulation on triangulated 2manifolds with or without boundary. We show that there are two kinds of prim...
Thomas Lewiner, Hélio Lopes, Esdras Medeiro...
CORR
2010
Springer
85views Education» more  CORR 2010»
13 years 7 months ago
Partial Denominator Bounds for Partial Linear Difference Equations
We investigate which polynomials can possibly occur as factors in the denominators of rational solutions of a given partial linear difference equation (PLDE). Two kinds of polynom...
Manuel Kauers, Carsten Schneider
JAPLL
2008
96views more  JAPLL 2008»
13 years 7 months ago
Simulating Turing machines on Maurer machines
Maurer machines are much closer to real computers than Turing machines. Computer instructions play a prominent part in Maurer machines. We show a straightforward way to simulate Tu...
Jan A. Bergstra, C. A. Middelburg
JSYML
2008
68views more  JSYML 2008»
13 years 7 months ago
Some pathological examples of precipitous ideals
We construct a model with an indecisive precipitous ideal and a model with a precipitous ideal with a non precipitous normal ideal below it. Such kind of examples were previously ...
Moti Gitik
JCT
2006
100views more  JCT 2006»
13 years 7 months ago
Approximating clique-width and branch-width
We construct a polynomial-time algorithm to approximate the branch-width of certain symmetric submodular functions, and give two applications. The first is to graph "clique-wi...
Sang-il Oum, Paul D. Seymour