Events
Department of Mathematics and Statistics
Texas Tech University
 | Monday
Oct. 21
|
| Algebra and Number Theory
No Seminar
|
Consider the sample path of a one-dimensional diffusion for which the diffusion coefficient is given and where the drift may take on one of two values with an unknown priori distribution. Given an initial state for the observed process, a minimax formulation of the Wiener sequential testing problem (with non-constant signal-to-noise ratio) is considered for detecting the correct drift coefficient as soon as possible and with minimal probabilities of incorrect terminal decisions. The existence of a least favorable (priori) distribution is investigated and its characterization is derived. When the signal-to-noise ratio is a constant particularly, it is shown that the least favorable distribution is half and half.
Please attend this week's Statistics seminar at 4 PM (UT-5) Monday via this Zoom link.
Meeting ID: 952 3422 4981
Passcode: 996564
Bring your own lunch and discuss (mostly) biology-related topics in math. Students, postdocs and faculty welcome from any discipline.
See the pdf flyer for this semester's schedule.
Abstract. Pulsed power drivers like the Z-machine at Sandia are effective tools for probing wide ranging material states. Effective modeling tools are required to design experiments and to back out and improve property descriptions. A stripline target may be modeled by a 2D resistive magnetohydrodynamic model but in this geometry the far field must be included. We describe an approach to derive and implement local DtN far field boundary conditions applicable for non-circular boundaries for the scalar vector potential. We also discuss our experience with using a modern software engineering approach for managing computational complexity and reproducibility.
When: 4:00 pm (Lubbock's local time is GMT -5)
Where: room MATH 011 (basement)
ZOOM details:
- Choice #1: use this link
Direct Link that embeds meeting and ID and passcode.
- Choice #2: join meeting using this link
Join Meeting, then you will have to input the ID and Passcode by hand:
* Meeting ID: 979 1333 6658
* Passcode: Applied (Note the capital letter "A")
Math Circle Fall Poster
abstract 10 AM CDT (UT-5)
Zoom link available from Dr. Brent Lindquist upon request.