Title: From random matrices to long range dependence
Speaker: Prof Arijit Chakrabarty ISI Delhi
Date: 10 February 2014
Time: 2:00 - 3:00 p.m.
Venue: Lecture Hall I, Department of Mathematics
Random matrices whose entries come from a stationary Gaussian process are studied. The limiting behavior of the eigenvalues as the size of the matrix goes to infinity is the main subject of interest in this talk. It is shown that the limiting spectral distribution is determined by the absolutely continuous component of the spectral measure of the stationary process, a phenomenon resembling that in the situation where the entries of the matrix are i.i.d. On the other hand, the discrete component contributes to the limiting behavior of the eigenvalues in a completely different way. Therefore, this helps to define a boundary between short and long range dependence of a stationary Gaussian process in the context of random matrices.