SAMSA-Masamu Virtual CRN Colloquia Series

2026 (Feb – Nov) Virtual Colloquia Series (Schedule)

Frobenius

Dr. Overtoun Jenda

Date and time: Tuesday, November 10, 2026 at 10:00 AM Central Time

Abstract: This is a test

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Graham’s Conjecture in Graph Pebbling

Dr. Glenn Hurlbert

Date and time: Tuesday, November 3, 2026 at 10:00 AM Central Time

Abstract: Graph pebbling began as a method to solve zero-sum problems in combinatorial number theory and group theory. Like many "games" that move tokens along the edges of a graph according…

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Can AI agents ask questions that have never been asked before?

Dr. Peter Johnson

Date and time: Tuesday, October 13, 2026 at 11:00 AM Central Time

Abstract: I do not know the answer to the question in the title; I think that it is an important question. Examples will be given.

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Consequences of Exponential Parameter Estimation in Simulation

Dr. Dave Goldsman

Date and time: Tuesday, October 6, 2026 at 11:00 AM Central Time

Abstract: Simulation analysts routinely estimate model parameters from data and then substitute those estimates into subsequent analyses. While this “plug-in” paradigm is nearly universal, its consequences can have significant implications for…

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Comparabilty in Bruhat Orders

Dr. Paul Horn

Date and time: Tuesday, September 29, 2026 at 11:00 AM Central Time

Abstract: The weak and strong Bruhat orders are fundamental objects in algebraic combinatorics. Both are partial orders on the symmetric group — that is the set of permutations on [n] letters…

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A Predictive Model for Combined Oncolytic Virotherapy: Mechanism, Synergy and Optimal Timing

Dr. Joseph Malinzi

Date and time: Tuesday, September 22, 2026 at 11:00 AM Central Time

Abstract: I will present a mathematical model of synergistic oncolytic virotherapy combining Vesicular Stomatitis Virus (VSV) and Vaccinia Virus (VV). The model centres on the B18R protein secreted by VV-infected cells,…

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Bias-corrected integration of abundance and occupancy data.

Dr. Eduard Camillo-Funollet

Date and time: Tuesday, September 15, 2026 at 11:00 AM Central Time

Abstract: Data integration synthesizes information from multiple sources to yield a comprehensive understanding of complex systems. By combining diverse data streams, researchers can leverage the unique strengths of different sampling designs…

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Directed Graph Models for Recruitment-Based Systems: Solvency Thresholds, Branching Structures, and Contagion Dynamics.

Dr. Cadavious Jones

Date and time: Tuesday, September 8, 2026 at 11:00 AM Central Time

Abstract: Pyramid schemes, Ponzi schemes, multi-level marketing  (MLM) programs, and blessing looms are often described in financial or legal terms, but each also has an underlying mathematical structure. In this talk,…

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Using the data around All of Us: Characterizing High-Risk Patterns in Large-Scale Cohorts

Vinny Jodoin

Date and time: Tuesday, September 1, 2026 at 11:00 AM Central Time

Abstract: Heart disease and its associated comorbidities represent a leading global cause of morbidity and mortality.Yet the physiological signatures preceding clinical diagnosis remain poorly characterized. The mechanistic links between short-term changes in physiological…

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Ranking Quantilized Mean Field Games with an Application to Early-Stage Venture Investments. 

Dr. Rinel Foguen Tchuendom

Date and time: Tuesday, August 25, 2026 at 11:00 AM Central Time

Abstract: Quantilized mean-field game models involve quantiles of the population’s distribution. We study a class of such games with a capacity for ranking games, where the performance of each agent is…

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Beyond Exact Reachability: Approximate Controllability of Infinite-Dimensional Boundary Controlled Systems

Dr. Patrice Ndambomve

Date and time: Tuesday, August 18, 2026 at 11:00 AM Central Time

Abstract: Controllability is a fundamental concept in control theory concerned with the ability to steer a dynamical system toward a desired target state using admissible controls. We begin with the classical…

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Historical Account of Some Important Facts in Harmonic Analysis and Recent Results

Dr. Geraldo de Souza

Date and time: Tuesday, August 4, 2026 at 11:00 AM Central Time

Abstract: This talk presents a historical overview of several important developments in harmonic analysis, emphasizing how foundational questions led to major advances in modern mathematics. Beginning with classical Hardy spaces, Lebesgue…

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Demographic stochasticity:  what is it and how to measure it?

Dr. F. Stephen Dobson

Date and time: Tuesday, July 28, 2026 at 11:00 AM Central Time

Abstract: The purpose of my talk is to give a progress report on a Masamu research program, the elephant demography project.  The elephant project has morphed over time, and during the…

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2025 (Feb – Nov) Virtual Colloquia Series (Schedule)

Ranks of Matrix Factorizations

Dr. Michael Brown

Date and time: Tuesday, August 5, 2025 at 11:00 AM Central Time

Abstract: A free resolution of a module over a ring is an approximation of the module in terms of simple building blocks, namely free modules. Several of the most important open…

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On almost cosymplectic generalized (k,μ)′-spaces

Dr. Fortun´e Massamba

Date and time: Tuesday, July 29, 2025 at 11:00 AM Central Time

Abstract: In this talk, we introduce almost cosymplectic manifolds whose characteristic vector field ξ belongs to a generalized (k, µ)′-nullity distribution involving a certain tensor h′ of type (1,1). If h′…

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Archived Virtual Colloquia Series Resources