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JSC
2010
103views more  JSC 2010»
13 years 10 months ago
Bounds on absolute positiveness of multivariate polynomials
We propose a general framework for obtaining bounds on absolute positiveness of multivariate polynomials. We show that a known bound by Hong is a nearly optimal bound within this ...
Prashant Batra, Vikram Sharma
SODA
2004
ACM
160views Algorithms» more  SODA 2004»
14 years 25 days ago
On colorings of squares of outerplanar graphs
We study vertex colorings of the square G2 of an outerplanar graph G. We find the optimal bound of the inductiveness, chromatic number and the clique number of G2 as a function of...
Geir Agnarsson, Magnús M. Halldórsso...
STOC
2005
ACM
133views Algorithms» more  STOC 2005»
14 years 11 months ago
An O(log n log log n) space algorithm for undirected st-connectivity
Abstract. We present a deterministic O(log n log log n) space algorithm for undirected stconnectivity. It is based on a space-efficient simulation of the deterministic EREW algorit...
Vladimir Trifonov