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Darien DeWolf speaking at University of Regina in June 2019.

Darien DeWolf

Department of Mathematics and Statistics
St. Francis Xavier University
2323 Notre Dame Ave
Antigonish, NS B2G 2W5

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I am currently an assistant professor in the Department of Mathematics and Statistics at St. Francis Xavier University.

My current research areas include inverse semigroups, category theory, groupoids and restriction categories.


Publications | Preprints | Students Supervised | Theses | Talks | Education | Awards | Employment and Teaching | Other


Publications. [top]

In Print

"The Ehresmann-Schein-Nambooripad Theorem for Inverse Categories." Darien DeWolf, Dorette Pronk. Theory and Applications of Categories. (2018) 33:813-831.
PDF Direct Download: [pdf]
The final publication link is available at TAC.

"On commutation semigroups of dihedral groups." Darien DeWolf, Charles Edmunds, Christopher Levy. Semigroup Forum (2013) 87:467-488.
PDF Direct Download: [pdf]
The final publication link is available at link.springer.com: DOI: s00233-013-9483-x


Preprints. [top]

"Commutation Semigroups of Finite Metacyclic Groups with Trivial Centre (with Charles C. Edmunds)." 2018.
PDF Preprint Download: [pdf]
arXiv: 1807.10389

"On Double Inverse Semigroups (with Dorette Pronk)." 2015.
PDF Direct Download: [pdf]
arXiv: 1501.03690


Students Supervised. [top]

Honours Students

Maxwell Jennings
Thesis Title: Crossed Modules
Degree: B.Sc. Joint Honours in Mathematics and Computer Science
St. Francis Xavier University



Theses. [top]

"Restriction Category Perspectives of Partial Computation and Geometry." Ph.D. Dissertation (Dalhousie University, Halifax, N.S.), 2017.
PDF Direct Download: [pdf]

"On Double Inverse Semigroups." M.Sc. Dissertation (Dalhousie University, Halifax, N.S.), 2013.
PDF Direct Download: [pdf]

"On Commutation Semigroups of Dihedral Groups of Order 2N Where N is Even." B.Sc. Honours Thesis (Mount Saint Vincent University, Halifax, N.S.), 2012.
PDF Direct Download: [pdf]



Talks. [top]

"The equivalence of ordered groupoids and left cancellative categories using double categories"
"A comparison lemma for Ehresmann sites"
"Introduction to Categories"
"Groupoids Associated to Join Inverse Categories"
"Monads as Models of Computation"
"Restriction bicategories: two approaches"
"An Element-Based Reformulation of Restriction Monads"
"Restriction Monads and Their Algebras"
"Restriction Monads"
"Restriction Monads and Category Objects"
"Restriction Categories and Monads"
"Partial Functions and Categories of Partial Maps"
"Inverse Restriction Categories and Their Groupoids"
"Double Groups and Semigroups"
"On Double Inverse Semigroups"
"On Commutation Semigroups of Dihedral Groups"


Education. [top]

Ph.D. in Mathematics
M.Sc. in Mathematics
B.Sc. (Honours) in Mathematics


Awards. [top]

Izaak Walton Killam Predoctoral Scholarship
Nova Scotia Graduate Scholarship
NSERC CGS-D3 Research Scholarship
Dalhousie University President's Award
NSERC CGS-M Research Scholarship
Frank Bennett Research Award
Dr. Len Parent Computer Science Award


Employment and Teaching. [top]

St. Francis Xavier University, Antigonish, N.S.
August 2017 to Present: Assistant Professor

Mount Saint Vincent University, Halifax, N.S.
July 2014 to August 2017: Part-Time Faculty


Other Academic and Administrative Activities. [top]

Canadian Mathematical Society
St. Francis Xavier University
Science Atlantic Math/Stats/CS Conference [Conference Website]
Professional Development
AARMS/DMSGSA Summer School 2016 Student Conference
Dalhousie Mathematics and Statistics Graduate Students' Association
Math Circles Nova Scotia [website]


Copyright © Darien DeWolf 2010-2019
Updated: 07.14.2019