[Math-cs-seminar] Reminder: Seminar today: Uwe Hansen

[Jeff Kinne]

This is the last reminder of Uwe Hansen's seminar talk today at noon. 
Note the time is 12 noon (different than the last few times).

--Jeff

On 04/01/2012 08:04 PM, Jeff Kinne wrote:
> This message is being sent to announce an ISU Math and CS Dept Seminar
> this week. It will be at noon on Wednesday. Details are below.
>
> --Jeff
>
>
> Date/Time/Location:
> Wednesday April 4, 2012 at 12 noon in RO A-187
>
> Title:
> Projection Operators in Physics
>
> Presenter:
> Uwe Hansen, Professor Emeritus of Physics, Adjunct Instructor of
> Mathematics, ISU
>
> Abstract:
> In an anisotropic medium, Maxwell’s Equations become tensor
> relationships. For certain geometries this results in a problem
> remarkably similar to an Eigenvalue problem, except that the third
> eigenvalue is missing. With the use of a projection operator, which
> projects the equations into a two-dimensional subspace, this is reduced
> to a standard two dimensional Eigenvalue problem. The operators involved
> relate to measurable physical quantities and are thus Hermetian, with
> real Eigenvalues and orthogonal Eigenvectors in the two dimensional
> sub-space. This is illustrated for the case of observing cyclotron
> resonance in a semiconductor with an ellipsoidal Fermi Surface.
>
> With a PhD in Solid State Physics Uwe Hansen Joined the ISU faculty in
> 1968 after two years as an NRC/NAS Postdoctoral Research Associate at
> the US Naval research laboratory in Washington DC. His primary research
> interests have focused on Mode Studies in Musical Instruments. He is a
> Fellow of the Acoustical Society of America and the Indiana Academy of
> Science. He has served as chair of the ISU Physics Department, and is
> currently serving as editor of the IAS Proceedings and as executive
> Director of CSUI, a consortium of Midwest Universities. He was the 2011
> recipient of the ASA distinguished Service Citation.