Author: msaienga

Algebra and Geometry Seminar: An invitation to Nichols algebras

Speaker: Guillermo Sanmarco (ISU) Nichols algebras of diagonal type are generalizations of (positive parts) of small quantum groups that play a crucial role in the classification of finite-dimensional pointed Hopf algebras with abelian group of group-likes. Remarkably, many combinatorial tools of quantum groups were extended to this setting which led to the classification of such … Continue reading Algebra and Geometry Seminar: An invitation to Nichols algebras

November 30, 2021, 2:00-2:50pm | Webex

Mathematics Colloquium: Introduction to a Hopf fibration and an anti-de Sitter space in sub-Riemannian geometry

Speaker: Gunhee Cho (University of California, Santa Barbara) Title: Introduction to a Hopf fibration and an anti-de Sitter space in sub-Riemannian geometry Abstract: Sub-Riemannian geometry is a generalization of Riemannian geometry and we introduce Hopf fibration and anti-de Sitter space as natural objects in sub-Riemannian geometry that appears very naturally in various contexts of Physics and Mathematics. On … Continue reading Mathematics Colloquium: Introduction to a Hopf fibration and an anti-de Sitter space in sub-Riemannian geometry

November 30, 2021, 4:10-5:00pm | Zoom

Mathematical Biology Seminar: Age-Structured Population Models of Tissue Organization

Speaker: Anayse Miller, Iowa State University (Mathematics) Abstract: Age-Structured Population Models of Tissue OrganizationTissue disorganization is present in many diseases, including cancer. In the case of cancer, genetic mutations cause tissue to go from a healthy steady-state to an unhealthy system. In order to gain a better understanding of this process, we first must have … Continue reading Mathematical Biology Seminar: Age-Structured Population Models of Tissue Organization

December 1, 2021, 3:10-4:00pm | Carver 401 and Zoom

PADS Seminar: Recent Developments in Parabolic Uniform Rectifiability

Speaker: Simon Bortz, University of Alabama Abstract: In the 1980’s harmonic analysis was being rapidly adapted to `rough’ settings. Among the important early developments was the proof of the L^2 boundedness of the (principal value) Cauchy integral operator on a Lipschitz graph due to Coifman, McIntosh and Meyer. Soon after Coifman, David and Meyer extended this … Continue reading PADS Seminar: Recent Developments in Parabolic Uniform Rectifiability

December 1, 2021, 4:10-5:00pm | Zoom

PADS Seminar: Schur functions- A brief survey

Speaker: Jaydeb Sarkar, Indian Statistical Institute Abstract: The Schur class, denoted by S(D), is the set of all functions analytic and bounded by one in modulus in the open unit disc D in the complex plane. Elements of S(D) are called Schur functions. A classical result going back to Issai Schur states: A function f is … Continue reading PADS Seminar: Schur functions- A brief survey

November 17, 2021, 4:10-5:00pm | Zoom

CAM Seminar: A reinterpreted discrete fracture model for fracture and barrier networks

Speaker: Yang Yang, Michigan Technological University Abstract: In this talk, we construct the reinterpreted discrete fracture model for flow simulation of fractured porous media containing flow blocking barriers on non-conforming meshes. The methodology of the approach is to modify the traditional Darcy’s law into the hybrid-dimensional Darcy’s law where fractures and barriers are represented as … Continue reading CAM Seminar: A reinterpreted discrete fracture model for fracture and barrier networks

November 1, 2021, 4:00-5:00pm | Zoom

Geometric Analysis Seminar: The Hermitian geometry of Strominger connections

Speaker: Fangyang Zheng, Chongqing Normal University Abstract: Abstract: In this talk we will discuss the geometry of Strominger connection of Hermitian manifolds, based on recent joint works with Quanting Zhao. We will focus on two special types of Hermitian manifolds: Strominger K¨ahler-like (SKL) manifolds, and Strominger parallel torsion (SPT) manifolds. The first class means Hermitian … Continue reading Geometric Analysis Seminar: The Hermitian geometry of Strominger connections

October 28, 2021, 12:40-1:30pm | Zoom

Iowa PDE Seminar

The mission of this meeting is to bring together experts and young researchers to discuss recent research advances in the field of partial differential equations. Come to Carver 205 Saturday October 30, 2021 for multiple presentations from Iowa State and University of Iowa faculty on topics in partial differential equations. Please see our website for … Continue reading Iowa PDE Seminar

October 30, 2021, 9:30am-5:00pm | 205 Carver Hall

PADS seminar: How Does Tempering Affect the Local and Global Properties of Fractional Brownian Motion?

Speaker: Farxad Sabzikar, Iowa State University Abstract: In this talk, we discuss the effects of tempering the power-law kernel of the moving average representation of a fractional Brownian motion (fBm) on some local and global properties of this Gaussian stochastic process. Tempered fractional Brownian motion (TFBM) and tempered fractional Brownian motion of the second kind (TFBMII) … Continue reading PADS seminar: How Does Tempering Affect the Local and Global Properties of Fractional Brownian Motion?

October 27, 2021, 4:25-5:00pm |  Zoom

Mathematical Biology Seminar: Competition dynamics of phytoplankton species in eutrophic water columns

Speaker: Professor Adrian Lam, Ohio State University Abstract: The paradox of the plankton highlights the apparent contradiction between Gause’s law of competitive exclusion and the observed diversity of phytoplankton. We are interested in the dynamics phytoplankton populations in competition for light in a eutrophic water column. In the first part of the talk, we analyze … Continue reading Mathematical Biology Seminar: Competition dynamics of phytoplankton species in eutrophic water columns

October 27, 2021, 3:10-4:00pm | Carver 401