AWMA virtual Seminar n°5

AWMA virtual Seminar n°5

The speaker, Deborah Olayide AJAYI is an Associate Professor of Mathematics at the University of Ibadan, Ibadan, NIGERIA. She studied Mathematics at the University of Ibadan and obtained her Ph.D. in 1996. She specialized in the field of algebraic topology under the supervision of Professor S. A. Ilori. The title of her thesis is ‘Stiefel-Whitney classes and the span of some real flag manifolds.’

Deborah was an Affiliate of the International Center for Theoretical Physics (ICTP), Italy, in 1995 and was granted research fellowship as a junior associate of ICTP from 2002 to 2007. She received Mac Arthur Foundation Fellowship of the University of Ibadan which she utilized as a Visiting Scientist at the Institute of Mathematics, Technische Universitaat, Berlin, Germany, from January to March, 2010 with Professor Gunter Ziegler as her host. She also received the Schlumberger Foundation Faculty for the Future Fellowship which she utilized as a Guest Scientist at Pennsylvania State University, University Park, USA under the supervision of Professor Augustin Banyaga from January – December 2011.

She has supervised over 20 Masters Degree Project work and 3 Ph.D theses  in Algebraic Topology, Differential Geometry,  Topological Data Analysis, Combinatorics and their applications


 Conference online Link

Register to attend: -

Meeting number (access code):  -
Meeting password: -
Date Thursday,  February 04, 2021
Time 14:00-15:00 (UTC)
Speaker Prof. Deborah Olayide AJAYI
Affiliation  University of Ibadan
Domain Topology
Title Stiefel-Whitney Classes and Persistent Stiefel-Whitney Classes
Abstract Persistent homology has emerged as a fundamental and important tool in topological based data analysis, which has found applications in many fields such as medicine, image processing, biology, network analysis, material science, sensor network. Persistent cohomology has consequently, also been found to be useful in the theory of data analysis. The goal of this talk is to present the notion of  special cohomology classes, the Stiefel-Whitney characteristic classes and persistence in the classes.


Thursday, February 4, 2021