ON TWO-DIMENSIONAL QUASITOPOLOGICAL FIELD THEORIES

We study a class of lattice field theories in two dimensions that includes gauge theories. We show that in these theories it is possible to implement a broader notion of local symmetry, based on semisimple Hopf algebras. A character expansion is developed for the quasitopological field theories, and partition functions are calculated with this tool. Expected values of generalized Wilson loops are defined and studied with the character expansion.

Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil