Title
Group-theoretic Algorithms for Matrix Multiplication
Abstract
We further develop the group-theoretic approach to fast matrix multiplication introduced by Cohn and Umans, and for the first time use it to derive algorithms asymptotically faster than the standard algorithm. We describe several families of wreath product groups that achieve matrix multiplication exponent less than 3, the asymptotically fastest of which achieves exponent 2.41. We present two conjectures regarding specific improvements, one combinatorial and the other algebraic. Either one would imply that the exponent of matrix multiplication is 2.
Year
DOI
Venue
2006
10.1109/SFCS.2005.39
46TH ANNUAL IEEE SYMPOSIUM ON FOUNDATIONS OF COMPUTER SCIENCE, PROCEEDINGS
Keywords
Field
DocType
group theory,wreath product,matrix multiplication
Scalar multiplication,Matrix chain multiplication,Multiplication,Discrete mathematics,Combinatorics,Multiplication algorithm,Algebra,Algorithm,Strassen algorithm,Diagonal matrix,Matrix multiplication,Mathematics,Block matrix
Conference
ISSN
Citations 
PageRank 
0272-5428
30
2.95
References 
Authors
3
4
Name
Order
Citations
PageRank
Henry Cohn119220.23
Robert Kleinberg22886202.55
Balázs Szegedy328526.04
Christopher Umans487955.36