摘要

We specify a class of graphs, H-t, and characterize the irreducible decompositions of all powers of the cover ideals. This gives insight into the structure and stabilization of the corresponding associated primes; specifically, providing an answer to the question For each integer t0, does there exist a (hyper) graph H-t such that stabilization of associated primes occurs at n((H-t) -1)+t? [4]. For each t, H-t has chromatic number 3 and associated primes that stabilize at n=2+t.

  • 出版日期2014-5-4

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