%0 Journal Article %A Takigiku, Motoki %T A Pieri formula and a factorization formula for sums of $K$-theoretic $k$-Schur functions %J Algebraic Combinatorics %D 2019 %P 447-480 %V 2 %N 4 %I MathOA foundation %U http://archive.numdam.org/articles/10.5802/alco.45/ %R 10.5802/alco.45 %G en %F ALCO_2019__2_4_447_0