Pseudo-Frobenius numbers and defining ideals of numerical semigroup rings
Speaker: Đỗ Văn Kiên (ĐHSP Hà Nội 2)

Time: 9:30 - 11:30, March 31, 2021

Venue: Room 612, A6, Institute of Mathematics, VAST

Abstract: In this talk, we introduce some of the main results in the dissertation “Some homological properties of almost Gorenstein rings”. We focus on the followings:

  • Describe the structure of the defining ideals of numerical semigroup rings when the pseudo-Frobenius numbers are multiples of a fixed integer.
  • Determine characterizations of determinantal defining ideals in numerical semigroup rings of maximal embedding dimension.
  • Some the ring-theoretic properties of numerical semigroup rings with determinantal defining ideals are also explored.

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