%0 Journal Article %T Mock theta functions and weakly holomorphic modular forms modulo 2 and 3 %A Scott Ahlgren %A Byungchan Kim %J Mathematics %D 2013 %I arXiv %R 10.1017/S0305004114000565 %X We prove that the coefficients of certain mock theta functions possess no linear congruences modulo 3. We prove similar results for the moduli 2 and 3 for a wide class of weakly holomorphic modular forms and discuss applications. This extends work of Radu on the behavior of the ordinary partition function modulo 2 and 3. %U http://arxiv.org/abs/1306.4386v1