Photo of Omar Dennaoui
Mathematics · University of Louisiana at Lafayette

Omar Dennaoui

I study finite groups locally at a prime p, and the higher-categorical structures that encode them: partial groups, fusion systems, Segal conditions, and nerve theorems.

dennaoui@louisiana.edu
Maxim Doucet Hall 315 · Lafayette, LA 70504
Curriculum vitae ↓

Research

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I'm a graduate student advised by Justin Lynd and Philip Hackney. My thesis has two connected threads:

Localities & higher Segal

The higher Segal degree of localities of symmetric and alternating groups at the prime 2.

Nerve theorems

Nerve theorems for higher categorical structures via monads, including cyclic multicategories.

More broadly, I think about fusion systems and their homotopy theory and homological algebra, and modular representation theory.

Articles1

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Contractibility of the orbit space of a saturated fusion system after Steinberg
with Jonathon Villareal · J. Algebra 677 (2025), 267–277

Talks11

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Invited
2026
Higher Segal conditions and localities of symmetric and alternating groups at the prime 2
Topology Seminar, University of Virginia · October 2026
Contributed
2026
Higher Segal conditions and localities of symmetric and alternating groups at the prime 2
Representations of Finite Groups and Related Structures, UC Santa Cruz · August 2026
A nerve theorem for cyclic multicategories
International Category Theory Conference (CT26), Johns Hopkins University · July 2026
Higher Segal conditions and localities of symmetric and alternating groups at the prime 2
Southern Regional Algebra Conference, Southeastern Louisiana University · March 2026
2025
Contractibility of the orbit space of a saturated fusion system after Steinberg
Southern Regional Algebra Conference & Lloyd Roeling UL Lafayette Mathematics Conference · April 2025
Contractibility of the orbit space of a saturated fusion system after Steinberg
South Central Topology Conference IV, Texas A&M University · March 2025
Older contributed talks (2023–2024)
Contractibility of the orbit space of a saturated fusion system after Steinberg
Zassenhaus Groups and Friends Conference, Texas State University · June 2024
Contractibility of the orbit space of a saturated fusion system after Steinberg
South Central Topology Conference III, New Mexico State University · October 2023
Local & expository
2026
Higher Segal conditions and localities of symmetric and alternating groups at the prime 2
Algebra Seminar, University of Louisiana at Lafayette · October 2026
Older local talks (2022–2023)
Contractibility of the orbit space of a saturated fusion system after Steinberg
Algebra Seminar, University of Louisiana at Lafayette · November 2023
Limits and colimits, generators and relations of partial groups
Algebra Seminar, University of Louisiana at Lafayette · March 2022

Teaching

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Courses taught at the University of Louisiana at Lafayette:

MTHS 105/105S · Applied College Algebra Fundamentals · Fall 2024
MTHS 109/109S · Pre-Calculus Algebra · Spring 2024
MTHS 105/105S · Applied College Algebra Fundamentals · Fall 2023
MATH 105 · Applied College Algebra · Spring 2023
MATH 103/104 · Applied College Algebra Fundamentals · Fall 2022

Education

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Ph.D. Mathematics, University of Louisiana at Lafayette · 2021–present
Advised by Justin Lynd and Philip Hackney
B.S. Mathematics with honors, University of Balamand, Lebanon · 2017–2020