Symbolic powers of sums of ideals

Huy Tai Ha, Dang Hop Nguyen, Ngo Viet Trung +1

Let $I$ and $J$ be nonzero ideals in two Noetherian algebras $A$ and $B$ over a field $k$. Let $I+J$ denote the ideal generated by $I$ and $J$ in $A{\otimes }_{k}B$. We prove the follo…