October 19, 2026 - October 23, 2026
Public Access Category: All |
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- Time:
- 11:30am-12:30pm
- Location:
- Room 215
- Description:
Commutative Algebra seminar
Speaker: Kaushik Khamari, IIT Bombay
Host: Tony Puthenpurakal
Title: On licci monomial ideals
Time, day and date: 11:30:00 AM - 12:30:00 PM, Monday, October 19
Venue: Room No .215
Abstract: In this talk, we discuss basic notions of complete-intersection liaison and licci ideals, which are ideals in the liaison class of a complete intersection. We then introduce universal linking sequences corresponding to an arbitrary sequence of links. As an application, we give a characterization of finite colength licci monomial ideals in a polynomial ring over a field, due to Huneke and Ulrich.
- Time:
- 5:00pm-6:00pm
- Location:
- Room 215
- Description:
Plancherel Measure seminar
Speaker: Dipendra Prasad, IIT Bombay
Title: Plancherel Measure
Time, day and date: 5:00:00 PM – 6:00:00 PM, Monday, October 19
Venue: Room 215
Abstract: following Waldspurge
- Time:
- 5:00pm-6:00pm
- Location:
- Room 215
- Description:
Algebraic Groups Seminar
Speaker: Shripad M. Garge, IIT Bombay
Title: -
Time, day and date: 5:00:00 PM – 6:00:00 PM, Thursday, October 22
Venue: Room 215
Abstract: tenth chapter of Digne Michel
- Time:
- 3:30pm-4:30pm
- Location:
- Ramanujan Hall
- Description:
Students' Seminar
Speaker: Surjeet Singh, IIT Bombay
Host: Suman Kumar Sahoo
Title: Curvature of Curves and Surfaces
Time, day and date: 3:30:00 PM – 4:30:00 PM, Friday, October 23
Venue: Ramanujan Hall (https://meet.google.com/meet/dvs-xapw-vbk)
Abstract: Curvature is a fundamental concept in differential geometry that describes how a curve bends and how a surface behaves locally. The aim of this seminar is to introduce the notion of curvature, beginning with curves and then extending the discussion to surfaces in Euclidean space.
We first discuss the curvature of a regular plane curve and interpret it geometrically as a measure of its bending. Using this notion as a starting point, we introduce parametrized surfaces and discuss their tangent spaces and unit normal fields. We then define the normal curvature of a surface in a given tangent direction and introduce Gaussian curvature as an intrinsic measure of the surface's local geometry. Through suitable examples, we illustrate these concepts and examine how curvature distinguishes different types of surfaces.
The seminar aims to develop an intuitive and mathematical understanding of curvature through definitions, geometric interpretations, and examples, highlighting the transition from the curvature of curves to the curvature of surfaces.