2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53977The axial anomaly is computed for Euclidean Dirac fermions on the plane. The dependence upon the self-adjoint extensions of the Dirac operator is investigated and its relevance concerning the second virial coefficient of the anyon gas is discussed.4 pages, Plain.TeX, Talk given at the Yamada Conference, XXth ICGTMP, ToyonakaHigh Energy Physics - Theorytext