University of Regina | PIMS - Pacific Institute for the Mathematical Sciences

The University of Regina PIMS site office is located in the Department of Mathematics and Statistics at the University of Regina (Map).

A $P$-matrix is a matrix all of whose principal minors are positive. In this talk, we demonstrate that the fractional powers of a $P$-matrix are also $P$-matrices. This insight allows us to affirmatively address a longstanding conjecture raised in [D...

In this talk, we consider the non-penalty shrinkage and pretest estimation methods for the regression parameters of the generalized log-logistic proportional hazards (PH) model. This model, a simple extension of the log-logistic model (which...

In the first talk of this series, we saw how the first Stiefel-Whitney class is a complete invariant of real line bundles. Building on this, we will now study how to build a complete invariant for complex line bundles: the Chern class. Among other...

The synthetic analogue of the bar comonad controls the universal differentials in the bar spectral sequence of algebras over spectral operads. This can be viewed as a deformation of Koszul duality of such algebras. I will explain ongoing work with...

In topology, cohomology is an invariant we can assign to spaces. In algebra, there are also cohomology theories for various algebraic structures, such as group cohomology, Lie algebra cohomology, and André-Quillen cohomology of commutative rings...

We will see the definition and some examples of broken toric varieties and balloon animal maps between them. After an overview of some of the many different areas in which they appear, we look at how their geometry can be studied via complexes of...

In this third part, we will discuss orientations of manifolds, Poincaré duality, and the intersection product.

In this second part, we will look at more examples of cohomology rings. We will then focus on manifolds and discuss de Rham cohomology, orientations, Poincaré duality, and the intersection product.

A matrix is called totally positive if all of its minors are positive. These matrices are important in mathe- matics, but checking whether a large matrix is totally positive can be challenging. In this talk, we explore whether certain matrices...

Characteristic classes are certain cohomology classes that we assign to vector bundles. In this talk, we will first familiarize ourselves with cohomology. We will go over singular cohomology of spaces, the cup product, the cap product, along with...

Can you embed the real projective plane in three-dimensional space? Motivated by this and similar questions, I will introduce the correspondence between real line bundles and hypersurfaces, the first Stiefel-Whitney class, and Poincare duality. In...

Staff

Position	Name	Email	Phone #	Office
PIMS Site Director - University of Regina	Allen Herman	aherman@math.uregina.ca	+1 (306) 585-4487	College West 307.18
Site Administrator, University of Regina	Connie Renwick	Connie.Renwick@uregina.ca	(306) 337-3122
Education Coordinator - University of Regina	Patrick Maidorn	patrick.maidorn@uregina.ca	+1 (306) 585-4013	College West 307.3

Name	Position	Research Interests	Supervisor	Year
Alice Lacaze-Masmonteil	PIMS-CNRS Postdoctoral Fellow, University of Regina	Combinatorics	Karen Meagher	2024
Samir Mondal	PIMS Postdoctoral Fellow, University of Regina	Linear Algebra, Matrix Theory & Combinatorics	Shaun Fallat	2024
Himanshu Gupta	PIMS Postdoctoral Fellow, University of Regina	Combinatorics	Shaun Fallat	2023
Prateek Vishwakarma	PIMS Postdoctoral Fellow, University of Regina	Linear and Multilinear Algebra, Matrix Theory	Shaun Fallat	2021
Venkata Raghu Tej Pantangi	Postdoctoral Researcher	Group Theory and Generalizations	Karen Meagher	2021
Seyed Ahmad Mojallal	Postdoctoral Researcher, University of Regina	Combinatorics	Shaun Fallat	2020
Tseleung So	University of Regina	Algebraic topology	Donald Stanley	2019
Ferdinand Ihringer	University of Regina	Combinatorics	Karen Meagher	2016
Asghar Ghorbanpour	University of Regina	Geometry		2015
Paul Arnaud Songhafouo Tsopmene	University of Regina			2015