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Department of Mathematics

Mathematical Biology Seminars

Memorial Union on sunny day

The Mathematical Biology Seminar attempts to bring together those interested in applying mathematical techniques to important biological problems. The seminar will be comprised of talks by students and faculty in mathematics as well as from several ecological and biological departments from across the Oregon State University campus. Talks revolve around the mathematics of infectious diseases, deterministic and stochastic models of population dynamics, spatial ecology, and genomics, among others.

See below for upcoming seminars or access the seminar archive

Organizer

Swati Patel

Meeting time

Tuesdays at 3 pm in location KIDDER 238

Mailing lists

Attendees are encouraged to join the student mailing list and faculty mailing list.

Random permutations from q-Demazure products

STAG 112

Speaker: Mikhail Tikhonov

Morales, Panova, Petrov, and Yeliussizov introduced a family of random permutations obtained by applying the q-Demazure product to a Bernoulli(p) random subword of the staircase reduced word for the longest element of the symmetric group. At q=0 this is the 0-Hecke (Demazure) product, recovering their Grothendieck permuton; at q=1 it is the ordinary group product, studied by Defant. They conjectured a permuton limit for all q in (0,1). I will resolve this conjecture and show, perhaps surprisingly, that the limiting permuton for any q in [0,1) coincides with the q=0 Grothendieck permuton evaluated at a reparametrized probability p' = p(1-q)/(1-qp). The proof encodes the model as a colored stochastic six-vertex model on a triangular domain with reflective boundary, and then sandwiches the relevant uncolored model between two stochastic six-vertex models whose hydrodynamic limits are accessible. Read more.

TBA

STAG 112

Speaker: Sovanlal Mondal

Read more.

TBA

STAG 112

Speaker: Greg Lawler

Read more.

TBA

STAG 112

Speaker: William Leeb

Read more.