| Carl Rees Lectures in Mathematical Sciences | Carl Rees Lectures in Mathematical Sciences | Gore 104 | Title: Control of Plasmon on Graphene<br>Colloquium Talk<br><br>
Speaker: Fadil Santosa, University of Minnesota
<br><br>
Description: Graphene has been demonstrated to be desirable matherical for concentrating plasmons due to its low loss property. We investigate the problem of controlling graphene plasmons by changing the conductivity of the sheet as a function of time. We show that wave reversal, amplification, and standing waves are possible by manipulating the conductivity.
<br><br>
Refreshments and reception in 536 Ewing Hall • 4:30pm | 9/28/2018 7:30:00 PM | 9/28/2018 8:30:00 PM | False | |
| Colloquium Series & UD Data Sciences Institute | Colloquium Series & UD Data Sciences Institute | Memorial Hall 127 | Title: Adaptive Methods for the Simulation of Diffusion in Complex Geometries<br><br>
Speaker: Leslie Greengard
<br><br>
Description: We will review the state of the art in integral equation methods for the solution of the heat equation in moving geometries. With suitable fast algorithms, such methods achieve optimal complexiy and, in th homogeneous case, require the discretization of the space-time boundary alone. They achieve higher order accuracy with suitable quadratures and are straightforward to implement adaptively in space-time. We will discuss applications to biophysical modeling, reaction-diffusion systems, and computational fluid dynamics. | 9/28/2018 2:00:00 PM | 9/28/2018 3:00:00 PM | False | |
| Carl Rees Lectures in Mathematical Sciences | Carl Rees Lectures in Mathematical Sciences | Kirkbride 204 | Title: An Approach to Statistical Shape Analysis<br>
General Talk (Graduate and Undergraduate Students Welcome) <br>
<br>
Speaker: Fadil Santosa, University of Minnesota</p>
<br>
Description: In Statistical Shapes Analysis, the goal is to obtain
characteristics such as mean, standard deviation, etc., from a set of
shapes. While much progress in this area has occurred in the past four
decades, many challenges remain. This presentation will review several of
the important developments in this field. An approach based on Fourier
Analysis is proposed and its capabilities demonstrated.<br>
<br>
</a></p>
<p><a href="http://www-users.math.umn.edu/~santo002/">http://www-users.math.umn.edu/~santo002/</a></p> | 9/27/2018 7:30:00 PM | 9/27/2018 8:30:00 PM | False | |
| Chi-Wang Shu, Brown University | Chi-Wang Shu, Brown University | Gore 104 | Title: Discontinuous Galerkin Method for Convection Dominated Partial Differential Equations
Abstract: Discontinuous Galerkin (DG) method is a finite element method
with features from high resolution finite difference and finite
volume schemes such as approximate Riemann solvers and nonlinear
limiters. It was originally designed for solving hyperbolic
conservation laws but has been generalized later to solve higher
order convection dominated partial differential equations (PDEs)
such as convection diffusion equations and convection dispersion
equations. The DG method has been widely applied, in areas such
as computational fluid dynamics, computational electromagnetism,
and semiconductor device simulations, just to name a few. In
this talk we will give a general survey of the DG method,
emphasizing its designing principles and main ingredients. We
will also describe some of the recent developments in DG methods. | 4/6/2018 7:30:00 PM | 4/6/2018 8:30:00 PM | False | |
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