Title
Separating multilinear branching programs and formulas
Abstract
This work deals with the power of linear algebra in the context of multilinear computation. By linear algebra we mean algebraic branching programs (ABPs) which are known to be computationally equivalent to two basic tools in linear algebra: iterated matrix multiplication and the determinant. We compare the computational power of multilinear ABPs to that of multilinear arithmetic formulas, and prove a tight super-polynomial separation between the two models. Specifically, we describe an explicit n-variate polynomial F that is computed by a linear-size multilinear ABP but every multilinear formula computing F must be of size nΩ(log n).
Year
DOI
Venue
2011
10.1145/2213977.2214034
STOC '12 Proceedings of the forty-fourth annual ACM symposium on Theory of computing
Keywords
DocType
Citations 
size n,multilinear abps,separating multilinear,multilinear arithmetic formula,log n,linear algebra,linear-size multilinear,computational power,explicit n-variate polynomial f,multilinear formula computing f,multilinear computation,matrix multiplication,branching program,polynomials,model specification
Journal
9
PageRank 
References 
Authors
0.56
11
4
Name
Order
Citations
PageRank
Zeev Dvir143730.85
Guillaume Malod2544.53
Sylvain Perifel3646.61
Amir Yehudayoff453043.83