Sciweavers

1380 search results - page 4 / 276
» A General Polynomial Sieve
Sort
View
GIAE
2004
Springer
119views Mathematics» more  GIAE 2004»
14 years 2 months ago
Polynomial General Solutions for First Order Autonomous ODEs
For a first order autonomous ODE, we give a polynomial time algorithm to decide whether it has a polynomial general solution and to compute one if it exists. Experiments show that...
Ruyong Feng, Xiao-Shan Gao
ARSCOM
2005
106views more  ARSCOM 2005»
13 years 8 months ago
Chromatic Equivalence of Generalized Ladder Graphs
A class of graphs called generalized ladder graphs is defined. A sufficient condition for pairs of these graphs to be chromatically equivalent is proven. In addition a formula for...
Stephen Guattery, Gary Haggard, Ronald C. Read
CSL
2008
Springer
13 years 10 months ago
On Counting Generalized Colorings
Abstract. The notion of graph polynomials definable in Monadic Second Order Logic, MSOL, was introduced in [Mak04]. It was shown that the Tutte polynomial and its generalization, a...
Tomer Kotek, Johann A. Makowsky, Boris Zilber
CIE
2006
Springer
14 years 10 days ago
From a Zoo to a Zoology: Descriptive Complexity for Graph Polynomials
Abstract. We outline a general theory of graph polynomials which covers all the examples we found in the vast literature, in particular, the chromatic polynomial, various generaliz...
Johann A. Makowsky
ANTS
2006
Springer
127views Algorithms» more  ANTS 2006»
14 years 10 days ago
Doubly-Focused Enumeration of Pseudosquares and Pseudocubes
This paper offers numerical evidence for a conjecture that primality proving may be done in (log N)3+o(1) operations by examining the growth rate of quantities known as pseudosquar...
Kjell Wooding, Hugh C. Williams