Title
On the complexity of computing gröbner bases for quasi-homogeneous systems
Abstract
Let K be a field and (f1, ..., fn)\subset K[X1, ..., Xn] be a sequence of quasi-homogeneous polynomials of respective weighted degrees (d1, ..., dn) w.r.t a system of weights (w1,...,wn). Such systems are likely to arise from a lot of applications, including physics or cryptography. We design strategies for computing Gröbner bases for quasi-homogeneous systems by adapting existing algorithms for homogeneous systems to the quasi-homogeneous case. Overall, under genericity assumptions, we show that for a generic zero-dimensional quasi homogeneous system, the complexity of the full strategy is polynomial in the weighted Bézout bound Π_{i=1n}di / Π_{i=1nwi. We provide some experimental results based on generic systems as well as systems arising from a cryptography problem. They show that taking advantage of the quasi-homogeneous structure of the systems allow us to solve systems that were out of reach otherwise.
Year
DOI
Venue
2013
10.1145/2465506.2465943
ISSAC
Keywords
DocType
Citations 
cryptography problem,homogeneous system,bner base,respective weighted degree,quasi-homogeneous structure,quasi-homogeneous case,generic zero-dimensional quasi homogeneous,generic system,quasi-homogeneous polynomial,quasi-homogeneous system,subset k,algorithms
Conference
6
PageRank 
References 
Authors
0.47
10
3
Name
Order
Citations
PageRank
Jean-Charles Faugère1103774.00
Mohab Safey El Din245035.64
Thibaut Verron374.20