Functions on groups and computational complexity
Group Theory
2007-05-23 v1
Abstract
We give some connections between various functions defined on finitely presented groups (isoperimetric, isodiametric, Todd-Coxeter radius, filling length functions, etc.), and we study the relation between those functions and the computational complexity of the word problem (deterministic time, nondeterministic time, symmetric space). We show that the isoperimetric function can always be linearly decreased (unless it is the identity map). We present a new proof of the Double Exponential Inequality, based on context-free languages.
Cite
@article{arxiv.math/0202124,
title = {Functions on groups and computational complexity},
author = {Jean-Camille Birget},
journal= {arXiv preprint arXiv:math/0202124},
year = {2007}
}