From rjl at uw.edu Wed Apr 7 08:14:24 2010
From: rjl at uw.edu (Randy LeVeque)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Fwd: upcoming MAC lecture, Milliman series,
and MAA Public Lecture
In-Reply-To:
References:
Message-ID:
---------- Forwarded message ----------
From: Ioana Dumitriu
Date: Tue, Apr 6, 2010 at 9:21 PM
Subject: upcoming MAC lecture, Milliman series, and MAA Public Lecture
To: Ioana Dumitriu , Christopher Hoffman
, Rekha Thomas
Dear Departmental Contacts,
Once again, it's that time of the quarter! =) We would like to kindly
ask you to advertise the Spring MathAcrossCampus lecture, by the SIAM
president, Nick Trefethen--Tuesday, April 13th, 4-5pm in Kane 220.
Please see abstract and speaker bio below. Nick will also deliver the
Milliman 2010 lectures, on April 14th and 15th (see
http://www.math.washington.edu/Seminars/milliman_0910.php )
In addition, we would like to attract attention to an interesting talk
by Jeff Weeks, as part of the 2010 Meeting of the Pacific NW Section
of the MAA. The talk is entitled "The Shape of Space", and will be
delivered this coming Friday, April 9, at 8pm, in the Pigott
Auditorium at Seattle U. For more information, please see
http://www.seattleu.edu/scieng/math/Default.aspx?id=28096
Thank you very much!
Best regards,
Ioana
==========================================================================
MathAcrossCampus Lecture: April 13, 4-5pm in Kane Hall 220
? ? ? ? ? ? ? ? ? ? ? ?Reception to follow
? ? ? ? ? ? ? ?Colleen Rohrbaugh Room at UW Club
Title: ? Four bugs on a rectangle
Speaker: Nick Trefethen, Oxford University
Abstract:
Suppose four bugs at the corners of a 2 x 1 rectangle start chasing
each other at speed 1. Bug 1 chases bug 2, bug 2 chases bug 3, and so
on. What happens next will amaze you. As we follow the bugs to their
eventual collision at the center, we will encounter the biggest
numbers you've probably ever seen and confront some fundamental
questions about what it means to try to understand our world through
mathematics.
This talk is co-sponsored by the Milliman Committee.
===========================================================================
About the speaker:
Nick Trefethen is Professor of Numerical Analysis and Head of the
Numerical Analysis Group at Oxford University. He is the President of
the Society for Industrial and Applied Mathematics. Nick is an
Institute for Scientific Information Highly Cited Researcher whose
contributions to scientific computing and numerical analysis also
include four influential books. He is the "father" of pseudospectral
theory. Among his many honors, he is the winner of the inaugural
Leslie Fox Prize for Numerical Analysis, a Fellow of the British Royal
Society, and a member of the US National Academy of Engineering. He
has been invited to lecture both at the International Congress of
Mathematicians and at the International Congress on Industrial and
Applied Mathematics.
===============================================================
http://www.math.washington.edu/mac
From shlizee at uw.edu Mon Apr 19 22:08:45 2010
From: shlizee at uw.edu (Eli Shlizerman)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Applied Mathematics Seminar - Randall J. LeVeque,
Thursday April 22
Message-ID:
Dear All,
This Thursday, April 22, at 4:00 pm in Guggenheim 220, Randy LeVeque
will give talk in the Applied Mathematics Seminar. Randy's talk is
initiating the "Applied Mathematics Seminar" series - a talk given by
a faculty member in AMATH once a quarter. Hope to see you all there!
Best Regards,
Eli Shlizerman and Andrea Barreiro
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Speaker: Randall J. LeVeque
Title: Finite-volume Methods and Software for Wave Propagation Problems
Time: 4pm on Thursday, April 22, 2010
Room: Guggenheim 220
Abstract:
Wave propagation problems arise in nearly every field of science and
engineering: shock waves in supernovas or traffic flow, elastic waves
in earthquakes or ultrasound, water waves in tsunamis or storm surges,
blast waves in explosions or volcanoes, to name but a few. While the
applications may vary greatly, the mathematical structure of such
problems is often very similar: they can all be modeled by hyperbolic
partial differential equations that are often derived via conservation
of physical quantities such as mass, momentum, and energy.
For the past 15 years I have been working with collaborators (including
many UW students) on the development of a general open source software
package, Clawpack, for the solution of conservation laws and other
hyperbolic problems, using adaptive mesh refinement to allow much greater
resolution where needed. We have also been working with researchers in
several departments at UW and elsewhere on the solution of specific
problems.
In this talk I will give a flavor of the difficulties in solving nonlinear
hyperbolic equations and an overview of some current software projects
and applications, particularly in geophysics and biomechanics.
From rjl at uw.edu Fri Apr 23 12:20:59 2010
From: rjl at uw.edu (Randy LeVeque)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Talk by Rob Schreiber Thursday 4/29
Message-ID:
Rob Schreiber will be on campus all day next Thursday. Please contact
me if you would like to arrange to talk with him.
- Randy LeVeque
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Applied Mathematics Seminar
--------------------------------------------------------------------------
Speaker: Rob Schreiber
Exascale Computing Lab, HP Labs
Title: What's Coming (Maybe) in High Performance Computing
Time: 4pm on Thursday, April 29, 2010
Room: Guggenheim 220
Abstract:
For a few years now we have been focused on the multicore processor
and its impact on HPC. That has distracted us from some issues that
I argue are more important: getting enough memory bandwidth, getting
enough network bandwidth, getting enough storage bandwidth, tolerating
hardware and software failures, and finding more productive programming
environments.
We have recently completed a study of promising HPC research directions.
In this talk, I will focus on memory, storage, interconnect, and
programming and discuss some new technologies, specifically photonics and
non-volatile memory that may help open some of the bandwidth bottlenecks
we now encounter. I will also talk about new programming models that
may make clusters less formidable for the programmer.
----------------------------------------------------------------------------------
For other AMath events and subscription information, please visit
http://www.amath.washington.edu/events/
From shlizee at gmail.com Tue May 4 21:53:30 2010
From: shlizee at gmail.com (shlizee@gmail.com)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Boeing Seminar - Thursday May 6 - Michael Brenner
Message-ID:
Dear All,
Our second Boeing Distinguished Lecture of the spring quarter will
take?place this Thursday, May?6, at 4:00 pm at Guggenheim Hall room
220.
Please join us for a reception afterwards on the 4th floor of Guggenheim.
-------------------------------------------------------------------------------------------------------
Boeing Distinguished Lecture Series
"Sphere packings and Self Assembly"
Michael Brenner
Harvard University
Time & Location:
Thursday, May 6, at 4:00 pm at Guggenheim Hall 220
Abstract:
Self assembly is the idea of creating a system whose component parts
spontaneously assemble into a structure of interest.
In this talk I will outline our research program aimed at creating
self-assembled structures out of very small spheres,
that bind to each other on sticking. The talk will focus on (i) some
fundamental mathematical questions in
finite sphere packings (e.g. how do the number of rigid packings grow
with N, the number of spheres); (ii) algorithms for self assembly
(e.g. suppose the spheres are not identical, so that every sphere does
not stick to every other; how to design the system to promote
particular structures); (iii) physical questions (e.g. what is the
probability that a given packing with N particles forms for a system
of colloidal nanospheres); (iv) comparisons with experiments on
colloidal nanospheres.
and (v) ways of using microfluidics to enable kinetically driven self assembly.
From shlizee at uw.edu Tue May 18 12:32:48 2010
From: shlizee at uw.edu (Eli Shlizerman)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Boeing Seminar - Thursday May 20 - Nancy Kopell
Message-ID:
Dear All,
Our last (but definitely not the least) Boeing Distinguished lecture
of the year, by Nancy Kopell from Boston University, will take place
this Thursday, May 20, at 4:00 pm at Guggenheim Hall room 220.
Please join us for a reception afterwards on the 4th floor of Guggenheim.
---------------------------------------------------------------------------------------------------------------------------------------------------
Nancy Kopell of Boston U. will deliver
** Gamma, beta and cell assemblies: brain rhythms from
physiology to function **
as part of Applied Math's Boeing Distinguished Colloquia series.
DATE AND TIME: *** THURSDAY MAY 20 4-5 PM ***
LOCATION: 220 GUGGENHEIM HALL (Near Drumheller fountain).
Abstract: It has been known for a long time that the brain can
produce rhythmic patterns of electrical activity, and that these can
be associated with cognitive activity. However, it remains
controversial whether these rhythms participate in cognition, or
simply reflect processes that happen during cognition. To make the
case that rhythms are functionally important, it is necessary to
understand the mechanisms by which the rhythms alter processing in the
nervous system. This line of research is still in its infancy, but
there is enough to see how such arguments might work. This talk
focuses on the gamma (35 -90 Hz) and beta (12-30 Hz) frequency bands,
using models to show how the differences in physiology underlying at
least some versions of those brain rhythms have different and
complementary properties with respect to the creation and interaction
of cell assemblies, providing a framework for understanding a variety
of data.
More about the speaker: http://cbd.bu.edu/members/nkopell.html
From rjl at uw.edu Fri May 21 15:33:01 2010
From: rjl at uw.edu (Randall J. LeVeque)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Applied Math Seminar by Bob Higdon, Thursday 5/27
Message-ID:
Bob Higdon from Oregon State will be visiting next Thursday and
Friday, and is speaking at 4pm Thursday.
Please let me know if you'd like to meet with him while he is here.
- Randy LeVeque
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Applied Mathematics Seminar
--------------------------------------------------------------------------
Speaker: Robert L. Higdon
Department of Mathematics
Oregon State University
Title: Layered Ocean Circulation Models and Multiple Time Scales
Time: 4pm on Thursday, May 27, 2010
Room: Guggenheim 218
Abstract:
In a layered ocean model, the vertical coordinate is a quantity related to
density, and a vertical discretization amounts to dividing the fluid into
water masses having distinct physical properties. This talk will begin with
an overview of this kind of model and will then describe some issues related
to multiple time scales. In a ocean circulation model the fastest motions
are typically external gravity waves, and it is commonplace to split the
fast and slow motions into separate subsystems that are solved by different
techniques. In connection with this time-splitting process, I will outline
some work related to numerical stability, time-stepping, and conservation of
mass, and I will also mention some issues with spatial discretization that
have recently become apparent.
------------------------------------------------------------------
For other AMath events and subscription information, please visit
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From rjl at uw.edu Fri Jun 4 12:40:52 2010
From: rjl at uw.edu (Randall J. LeVeque)
Date: Tue Jun 12 13:43:54 2018
Subject: [Amath-seminars] Talk by Bob Robey, LANL, Tuesday June 8
Message-ID:
Bob Robey from Los Alamos National Labs will be visiting next week and
is interested in recruiting students to work on high-performance
computing this summer (or in the future), and talking with people
about possible collaborations.
He's giving a presentation next Tuesday at 3:30 pm about the lab and
the sorts of things going on there. Anyone interested in learning
about this, whether or not you're interested in a job, is welcome.
Details below.
He'd also be happy to talk with people after the presentation, or if
you want to contact him to set up another time to talk, his email is
brobey@earthlink.net.
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LANL Recruiting and Collaboration Presentation
--------------------------------------------------------------------------
Speaker: Bob Robey
Eulerian Codes, LANL
Time: 3:30 pm on Tuesday, June 8, 2010
Room: Guggenheim 218
Abstract:
The Eulerian Codes group is just one of the many groups at Los Alamos
National Laboratory that are facing significant technical challenges in
their future work plans. For us, these challenges include Exascale
computing, improved fidelity of physics, new numerical methods, and
innovative experimental work.
A key to successfully accomplishing the goals on our roadmap is the
talent of the research scientists in our organization. For this we need
top-notch scientists willing to tackle hard challenges.
Just as important is renewing our collaboration with the academic community
in pursuit of breakthroughs in scientific capabilities.
------------------------------------------------------------------
For other AMath events and subscription information, please visit
http://www.amath.washington.edu/events/