%0 Journal Article %T On harmonic weak Maass forms of half integral weight %A Bumkyu Cho %A YoungJu Choie %J Mathematics %D 2010 %I arXiv %X We show that certain space of vector valued harmonic weak Maass forms of half integral weight is isomorphic to a space of scalar valued ones whose Fourier coefficients are supported on suitable progressions. This kind of result for holomorphic modular forms was proved by Eichler and Zagier. %U http://arxiv.org/abs/1002.1528v3