# Mathematics Colloquium | R.B. Bapat

## October 19 @ 4:30 pm - 5:30 pm

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### Event Details

Speaker: R.B. Bapat

Visiting Professor of Mathematics, Ashoka University

**Title**: **A glimpse of spectral graph theory**

**Abstract**: Spectral graph theory is the study of the interplay between the spectrum of the adjacency matrix of a graph and the properties of the graph. We present a selection of results from spectral graph theory. These include a result on non-isomorphic cospectral trees, a problem on decomposing the complete graph on ten vertices by copies of the Petersen graph, and characterization of nonsingular trees. We conclude by presenting a path-breaking recent proof of the sensitivity conjecture by Huang.

The talk will be live-streamed on Youtube. Please watch this space for more updates

**About the Speaker**: Professor Ravindra B. Bapat obtained his M.Stat. at the Indian Statistical Institute, New Delhi and Ph.D. at the University of Illinois at Chicago. After serving for two years at the University Of Mumbai he joined the Indian Statistical Institute, Delhi from where he superannuated. In 2019. At present he is INSA Senior Scientist at the same institute.

The main areas of research interest of Dr. Bapat are combinatorial matrix theory and generalized inverses. He has published more than 160 research papers and has written books on Linear Algebra, published by Hindustan Book Agency, Springer and Cambridge University Press. He has also written a book on Mathematics for the general reader, in Marathi.

Dr. Bapat has been on the editorial boards of Linear and Multilinear Algebra, Electronic Journal of Linear Algebra and Kerala Mathematical Association Bulletin. He has been elected Fellow of the Indian Academy of Sciences and the Indian National Science Academy.

He was a recipient of the J.C. Bose Fellowship. During 2009-2018. Dr. Bapat was elected president of the Indian Mathematical Society during 2007-2008.