Bufalo, R. [UNESP]Pimentel, B. M. [UNESP]2015-03-182015-03-182014-09-20International Journal Of Modern Physics A. Singapore: World Scientific Publ Co Pte Ltd, v. 29, n. 23, 19 p., 2014.0217-751Xhttp://hdl.handle.net/11449/117212In this paper, we present a study based on the use of functional techniques on the issue of insertions of massive fermionic fields in the two-dimensional massless gauged Thirring model. As it will be shown, the fermionic mass contributes to the Green's functions in a surprisingly simple way, leaving therefore the original nonperturbative nature of the massless results still intact in the massive theory. Also, by means of complementarity, we present a second discussion of the massive model, now at its bosonic representation.19engNonperturbative methodsmass insertionpath-integral bosonizationArtigo10.1142/S0217751X1450122XWOS:000342220300007Acesso restrito