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New Faculty Arriving Soon

The Mathematics Department has hired several new faculty to start in the fall

Math faculty win research seed grants

Seed funding from the College of Science Research and Innovation Seed (SciRIS) program awarded to four math faculty

A sustainable future: Unravelling the data

Mathematics and statistics are two of the quickest-growing fields in the country, and it's not hard to guess why.

Math in the Valley 2022

Our annual alumni newsletter: Math in the Valley 2021-2022

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Events

May
23
2022
Geometry-Topology Seminar Chung-Ping Lai Persistent Homology and Finite Group Actions BEXL 328 and Zoom, Monday, 12:00 PM

Persistent homology is a novel tool in data analysis executed by first assigning Vietoris-Rips complexes onto data and then compute the homology. In this talk we explore how finite group actions have the potential to improve existing persistent homology algorithms. We look at an interesting class of Vietoris-Rips complexes called the Regular Cyclic Graphs and see how ideas of group actions can be applied to it.

May
23
2022
Department Colloquium Holly Swisher Generalizations of the Alder-Andrews Theorem in Partition Theory Pharmacy Building 305 and Zoom, Monday, 4:30 PM

The study of integer partitions is a fascinating and far-reaching area of study. Integer partitions with parts that differ by at least $d$, called $d$-distinct partitions, arise in a famous identity of Euler and the first Rogers-Ramanujan identity. The Alder-Andrews Theorem, namely that there are at least as many $d$-distinct partitions of $n$ as partitions of $n$ into parts that are $\pm 1$ modulo $d+3$, was proved in 2011 after more than 50 years of work. In 2020, Kang and Park constructed an extension of Alder's conjecture which relates to the second Rogers-Ramanujan identity.

May
24
2022
M.Sc. Presentation Wei Xi Boo Effective Parameter Estimation in Heterogeneous Lorentz Media Kidder 274, Tuesday, 10:00 AM

A material's interaction with electromagnetic waves can be described by complex permittivity. Moreover, electromagnetic waves can be simulated with the Finite Difference Time Domain method. We will explore how to estimate the effective complex permittivity of a heterogeneous Lorentz Media from a Finite Difference Time Domain simulation.

May
26
2022
Number Theory Seminar Alina Ostafe Integer matrices with a given characteristic polynomial and multiplicative dependence of matrices Zoom only, contact Clayton Petsche for details, Thursday, 4:00 PM

We consider the set M_n(Z; H) of n x n matrices with integer elements of size at most H and obtain upper and lower bounds on the number of s-tuples of matrices from M_n(Z; H), satisfying various multiplicative relations, including multiplicative dependence, commutativity and bounded generation of a subgroup of GL_n(Q). These problems generalise those studied in the scalar case n=1 by F. Pappalardi, M. Sha, I. E. Shparlinski and C. L. Stewart (2018) with an obvious distinction due to the non-commutativity of matrices.

May
27
2022
Applied Mathematics and Computation Seminar SIAM PNW student presenters TBA ZOOM, Friday, 12:00 PM
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Contact Info

Department of Mathematics
Kidder Hall 368
Oregon State University
Corvallis, OR 97331-4605

Main Office: (541) 737-4686
Facsimile: (541) 737-0517

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