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COMBINATORICS
2006
112views more  COMBINATORICS 2006»
15 years 6 months ago
More Forbidden Minors for Wye-Delta-Wye Reducibility
A graph is Y Y reducible if it can be reduced to isolated vertices by a sequence of series-parallel reductions and Y Y transformations. It is still an open problem to characterize...
Yaming Yu
COMBINATORICS
2006
155views more  COMBINATORICS 2006»
15 years 6 months ago
Orthogonal Art Galleries with Holes: A Coloring Proof of Aggarwal's Theorem
We prove that n+h 4 vertex guards are always sufficient to see the entire interior of an n-vertex orthogonal polygon P with an arbitrary number h of holes provided that there exis...
Pawel Zylinski
CORR
2006
Springer
161views Education» more  CORR 2006»
15 years 6 months ago
Consensus Propagation
We propose consensus propagation, an asynchronous distributed protocol for averaging numbers across a network. We establish convergence, characterize the convergence rate for regul...
Ciamac Cyrus Moallemi, Benjamin Van Roy
IPL
2006
98views more  IPL 2006»
15 years 6 months ago
Transforming spanning trees and pseudo-triangulations
Let TS be the set of all crossing-free straight line spanning trees of a planar n-point set S. Consider the graph TS where two members T and T of TS are adjacent if T intersects T...
Oswin Aichholzer, Franz Aurenhammer, Clemens Hueme...
TIT
2008
106views more  TIT 2008»
15 years 6 months ago
Some Results on FCSR Automata With Applications to the Security of FCSR-Based Pseudorandom Generators
This article describes new theoretical results concerning the general behavior of a Feedback with Carry Shift Register (FCSR) automaton. They help to better understand how the init...
François Arnault, Thierry P. Berger, Marine...