Kuei-Nuan Lin, Penn State University
Authors: Kuei-Nuan Lin and Yi-Huang Shen
2022 AWM Research Symposium
Combinatorial and Homological Methods in Commutative Algebra
As a generalization of the ideals of star configurations of hypersurfaces, we consider the $a$-fold product ideal $I_a(f_1^{m_1} ···f_s^{m_s})$ when $f_1,…,f_s$ is a sequence of generic forms and $1 ≤ a ≤ m_1 +· · ·+m_s.$ Firstly, we show that this ideal has complete intersection quotients when these forms are of the same degree and essentially linear. Then we study its symbolic powers while focusing on the uniform case with $m_1 = ··· = m_s.$ For large $a$, we describe its resurgence and symbolic defect. And for general a, we also investigate the corresponding invariants for meeting-at-the-minimal-components version of symbolic powers.