%0 Journal Article %T K-Groups of reciprocity functors for G_a and abelian varieties %A Kay Rščlling %A Takao Yamazaki %J Mathematics %D 2013 %I arXiv %X We prove that the $K$-group of reciprocity functors, defined by F. Ivorra and the first author, vanishes over a perfect field as soon as one of the reciprocity functors is $\mathbb{G}_a$ and one is an abelian variety. %U http://arxiv.org/abs/1312.4205v2