Commutative algebra seminars
Speaker: Hema Srinivasan
Affiliation: University of Missouri, Columbia, MO, USA
Date: 12 Nov. Monday 3.30-5.00, 15 Nov. Thursday 2.00-3.30
Venue: Room 215
Title: Mixed Multiplicities I and II
Abstract: Given a Noetherian Local Ring, with a maximal ideal $m$,
we will present the definition and existence of Mixed Multiplicities of
filtrations of $m-$ primary ideals. We will show that this mixed
multiplicity for general filtrations satisfies the standard theorems and
inequalities for mixed multiplicities for $m-$ primary ideals including the
Minkowski inequalities.
(This is joint work with Dale Cutkosky and Parangama Sarkar )
Time:
5:00pm
Location:
Room. 215
Description:
Speaker: Cutkosky, Steven D.
Time & Date: 5pm Tuesday, November 13.
Venue: Room 215
Title: Poincare' series of divisors on surface singularities.
Abstract: We associate a Hilbert function to the exceptional components of a resolution of singularities of a surface singularity, and study its structure. We consider the question of when its associated Poincare' series is rational.
Time:
2:30pm-3:30pm
Location:
Ramanujan Hall, Department of Mathematics
Description:
Mathematics Colloquium
Speaker: Steven Dale Cutkosky, University of Mossouri
Date: Wednesday 14 November 2019
Time: 2.30-3.30
Venue: Ramanujan Hall
Title: Local Uniformization, Defect and Associated Graded Rings
Abstract: We discuss the problem of local uniformization (resolution of singularities along a valuation). We define the defect of an extension of valued fields and show that it is the only obstruction to local uniformization in positive characteristic. We explain how defect can be seen through lack of finite generation of associated graded rings along the valuation.
Time:
2:00pm-3:00pm
Location:
Room. 215
Description:
Commutative algebra seminars
Speaker: Hema Srinivasan
Affiliation: University of Missouri, Columbia, MO, USA
Date: 12 Nov. Monday 3.30-5.00, 15 Nov. Thursday 2.00-3.30
Venue: Room 215
Title: Mixed Multiplicities I and II
Abstract: Given a Noetherian Local Ring, with a maximal ideal $m$,
we will present the definition and existence of Mixed Multiplicities of
filtrations of $m-$ primary ideals. We will show that this mixed
multiplicity for general filtrations satisfies the standard theorems and
inequalities for mixed multiplicities for $m-$ primary ideals including the
Minkowski inequalities.
(This is joint work with Dale Cutkosky and Parangama Sarkar )
Time:
4:00pm-5:00pm
Location:
Ramanujan Hall, Department of Mathematics
Description:
Title: Control of wave equation.
Speaker: Debanjana Mitra,
Time: Friday, 16-11-18, 4p.m.-5p.m.
Venue: Ramanujan Hall, Department of Mathematics, IIT Bombay.
Abstract: In this talk, we will prove the observability inequality for
wave equation in the case of localized interior control.
Then the control of wave equation with variable coefficients will be
discussed.