Description

Combinatorics seminar.

Speaker: Niranjan Balachandran.

Affiliation: IIT Bombay.

Date and Time: Friday 13 September, 11:00 am - 12:00 pm.

Venue: Room No.215, Department of Mathematics.

Title: Equiangular lines in R^d.

Abstract: Suppose $0<\alpha<1$. The problem of determining the size of a

maximum set of lines (through the origin) in R^d s.t. the angle between

any two of them is arccos(\alpha) has been one of interest in

combinatorial geometry for a while now (since the mid 60s). Recently,

Yufei Zhao and some of his students settled this in a strong form. We will

see a proof of this result. The proof is a linear algebraic argument and

should be accessible to all grad students.

Speaker: Niranjan Balachandran.

Affiliation: IIT Bombay.

Date and Time: Friday 13 September, 11:00 am - 12:00 pm.

Venue: Room No.215, Department of Mathematics.

Title: Equiangular lines in R^d.

Abstract: Suppose $0<\alpha<1$. The problem of determining the size of a

maximum set of lines (through the origin) in R^d s.t. the angle between

any two of them is arccos(\alpha) has been one of interest in

combinatorial geometry for a while now (since the mid 60s). Recently,

Yufei Zhao and some of his students settled this in a strong form. We will

see a proof of this result. The proof is a linear algebraic argument and

should be accessible to all grad students.

Description

Room No.215, Department of Mathematics

Date

Fri, September 13, 2019

Start Time

11:00am-12:00pm IST

Duration

1 hour

Priority

5-Medium

Access

Public

Created by

DEFAULT ADMINISTRATOR

Updated

Thu, September 12, 2019 6:27pm IST