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Stochastic and Multiscale Modeling and Computation Seminar

The seminar organizer (as of Fall 2017) is Yue Cao (email: ycao33_AT_hawk_DOT_iit_DOT_edu).

Upcoming Seminars

Organizational notes: 
The seminars are usually Thursdays 12:45 – 1:50 PM.

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Stochastic and Multiscale Modeling and Computation Seminar Archive

Jinchao Xu - Department of Mathematics, The Pennsylvania State University
Feb 8, 2019 - 3:00pm to 4:00pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 242
In this talk, I will address several issues related to numerical and mathematical aspects of phase-field models and their numerical simulations. For the two-phase Allen-Cahn and Cahn Hilliard model, I will demonstrate that (1) the popular convex splitting schemes are fully... read more
Fri.
Feb 8
Renming Song - Department of Mathematics, University of Illinois at Urbana-Champaign
Sep 6, 2018 - 2:00pm to 3:00pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 025
Consider the following time-dependent stable-like operator with drift \[\mathscr{L}_{t}\varphi(x) = \int_{\mathbb{R}^{d}}\left[\varphi(x+z)-\varphi(x)-z^{(\alpha)}\cdot\nabla\varphi(x)\right]\sigma(t,x,z)\nu_{\alpha}(dz)+b(t,x)\cdot\nabla\varphi(x),\] where \(d\geq 1\), \(\nu_{\alpha}\) is an \(\... read more
Thu.
Sep 6
Chenghua Duan - School of Electronic, Electrical and Communication Engineering, Chinese Academy of Sciences
Apr 19, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 119
We study the numerical methods for porous media equation (PME). There are two characteristics: the finite speed of propagation of the free boundary and the potential waiting time, which make the problem not easy to handle. Based on different dissipative energy laws, we develop two numerical schemes... read more
Thu.
Apr 19
Duan Chen - Department of Mathematics and Statistics, University of North Carolina at Charlotte
Apr 12, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 119
In this work, we propose a fractional Poisson-Nernst-Planck model to describe ion permeation in gated ion channels. Due to the intrinsic conformational changes, crowdedness in narrow channel pores, binding and trapping introduced by functioning units of channel proteins,  ionic transport in... read more
Thu.
Apr 12
Ping Ao - Shanghai Center for Quantitative Life Sciences, Shanghai University
Mar 28, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 034
In this seminar, I will discuss a new approach emerged from biological study. The core result is so-called fundamental theorem of dynamics: a generic dynamical processes can be decomposed into at most three parts. It appears powerful enough to solve a few fundmental problems in both biology and... read more
Wed.
Mar 28
Stefan Metzger - Department of Mathematics, Friedrich-Alexander University of Erlangen–Nurnberg
Mar 22, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 119
The rheology of fluids may be heavily affected by dissolved polymers. To describe this effect, a thermodynamically consistent micro-macro model for two-phase flow with dilute polymeric solutions is derived via combining a phase-field approach for the description of the fluids with a FENE-dumbbell... read more
Thu.
Mar 22
Mimi Dai - Department of Mathematics, Statistics, and Computer Science, University of Illinois at Chicago
Mar 8, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 119
In this talk we will review classical results on determining modes for fluid equations and present a slightly different approach where we start with a time-dependent determining wavenumber defined for each individual trajectory and then study its dependence on the force. While in some cases... read more
Thu.
Mar 8
Chao Tang - Center for Quantitative Biology, Peking University
Mar 5, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 032
Precise and robust patterns emerge in biology, especially during development. Dissecting the genetic interactions that lead to these patterns has been the corner stone in developmental biology. This is usually done by observing changes in the pattern when perturbing the system, e.g., by deletions... read more
Mon.
Mar 5
Wenjun Ying - Institute of Natural Sciences, Shanghai Jiaotong University
Feb 15, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 119
I will present two Cartesian grid based evaluation methods for boundary integrals. The first method uses intersection points of an underlying Cartesian grid with the boundary (curve or surface) as quadrature points. The corresponding numerical quadrature has super-algebraic convergence as long as... read more
Thu.
Feb 15
Wei Wang - Professor, Department of Mathematics, Nanjing University, China
Feb 8, 2018 - 12:50pm to 1:50pm
College of Science, Applied Mathematics - Seminar - Rettaliata Engineering Center, Room 119
This talk introduce some effective modelling for some SPDEs with separated  time scales. First we consider SPDEs with slow-fast part and averaging method is applied to derive the averaged approximation model. Normal deviation is also considered and large deviations further confirms the... read more
Thu.
Feb 8

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