title: Positive basis for surface skein algebras.
abstract: We show that the twisted SL2 skein algebra of a surface has a natural basis (the bracelets basis) that is positive, in the sense that the structure constants for multiplication are positive integers.
authors: Department of Mathematics, Indiana University, Bloomington, IN 47405 dpthurst@indiana.edu.
authors: Dylan Paul
authors: DP
authors: Thurston
keywords: Jones polynomial; canonical basis; character variety; cluster algebras