05C50 Online

05C50 Online is a virtual seminar about graphs and matrices held twice a month on a Friday, 10AM Central Time via Zoom. This is organized by Stephen Kirkland and Hermie Monterde, both from the University of Manitoba.

May 17, 10am CT

Speaker: Minerva Catral

Affiliation: Xavier University 

Title: Spectral properties of a structured sign pattern related to a system of second order ODEs

Abstract: A sign pattern (matrix) has entries in {+, -, 0}. We investigate eigenvalue properties of a sign pattern of order 2n where two of the blocks are prescribed sign patterns of order n, and the other two (order n) blocks are the positive diagonal sign pattern and the sign pattern consisting of all zeros.  Such sign patterns arise from dynamical systems of second-order ordinary differential equations. 

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Please contact Hermie Monterde  if you have inquiries about the seminar.