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Series: Other Talks

Hosted by Dana Randall

I will present a number of stories about some results that I think
highlight how results get proved and how they do not. These will
span problems from almost all areas of theory, and will include
both successes and failures. I hope that beyond the actual results
you will enjoy and hopefully profit from the stories.

Series: Other Talks

Host: Shina Tan, School of Physics, Georgia Tech

Hydrodynamics is the theory describing collective behaviors of fluids and gases. It has a very long history and is usually considered to belong to the realm of classical physics. In recent years, it has been found that, in many cases, hydrodynamics can manifest a purely quantum effect --- anomalies. We will see how this new appreciation of the interplay between quantum and classical physics has emerged, unexpectedly, through the idea of gauge/gravity duality, which originates in modern string theory. I will briefly mention the possible relevance of the new findings to the physics of the quark gluon plasma.

Series: Other Talks

Emory University, Georgia Tech and Georgia State University, with support from the
National Science Foundation and the National Security Agency, will continue the
series of mini-conferences and host a series of 9 new mini-conferences from
2014-2017. The 12th of these mini-conferences will be held at
Georgia Tech during April 26-27, 2014. The conferences will stress a variety of
areas and feature one prominent researcher giving 2 fifty minute lectures and 4
outstanding researchers each giving one fifty minute lecture. There will also be
several 25 minute lecturers by younger researchers or graduate students.
For more details, see the
schedule

Series: Other Talks

Algorithms and Randomness Center (ARC) Theory Day is an annual event that features hour-long lectures focusing on recent innovative results in theoretical computer science, spanning a wide array of topics several of which are inspired by practical problems.
See the complete list of titles and times of talks.

Series: Other Talks

We
consider a diffusion on a potential landscape which is given by a
smooth Hamiltonian in the regime of small noise. We give a new proof of
the Eyring-Kramers
formula for the spectral gap of the associated generator of the
diffusion. The proof is based on a refinement of the two-scale approach
introduced by Grunewald, Otto, Villani, and Westdickenberg and of the
mean-difference estimate introduced by Chafai and Malrieu. The Eyring-Kramers
formula follows as a simple corollary from two main ingredients : The
first one shows that the Gibbs measure restricted to a domain of
attraction has a "good" Poincaré constant mimicking the fast convergence
of the diffusion to metastable states. The second ingredient is the
estimation of the mean-difference by a new weighted transportation
distance. It contains the main contribution of the spectral gap,
resulting from exponential long waiting times of jumps between
metastable states of the diffusion. This new approach also allows to
derive sharp estimates on the log-Sobolev constant. This is joint work with Andre Schlichting.

Series: Other Talks

Using basic linear algebra as a natural language of special relativity, and assuming very little knowledge of physics, we present a novel linear-algebraic derivation of the Lorentz transformation. Through the geometry of Minkowski diagrams, we analyze properties and paradoxes of special relativity including the Twin paradox and the bug-rivet paradox.Dr. de Pillis is a renowned cartoonist and animator, and his new book entitled Illustrated Special Relativity Through its Paradoxes is a fusion of Linear Algebra, Graphics, and Reality.

Series: Other Talks

The Southeast Geometry Seminar is a series of semiannual one-day events focusing on geometric analysis. These events are hosted in rotation by the following institutions: The University of Alabama at Birmingham, The Georgia Institute of Technology, Emory University, The University of Tennessee Knoxville. The following six speakers will give presentations on topics that include geometric analysis, and related fields, such as partial differential equations, general relativity, and geometric topology:
Robert Finn (Stanford University),
Bo Guan (Ohio State University),
John Harvey (University of Notre Dame),
Fernando Schwartz (University of Tennessee),
Henry Wente (Toledo, Ohio),
Xiangwen Zhang (Columbia University) .

Series: Other Talks

Contact Yuliya Babenko, <a href="mailto:ybabenko@kennesaw.edu">ybabenko@kennesaw.edu</a>

The Georgia Scientific Computing Symposium 2014 will be held at
Kennesaw State University (KSU) on Saturday, February 22. It is organized by KSU Departments of
Mathematics and Statistics and Computer Science.
There will be six plenary talks and a poster session.
Graduate students, postdocs, and junior faculty are encouraged to present posters.
For complete details and to register, see the symposium website

Series: Other Talks

Emory University, Georgia Tech and Georgia State University, with support from the
National Science Foundation and the National Security Agency, will continue the
series of mini-conferences and host a series of 9 new mini-conferences from
2013-2016. The 11th of these mini-conferences will be held at
Georgia State University from January 25-26, 2014. The conferences will stress a variety of
areas and feature one prominent researcher giving 2 fifty minute lectures and 4
outstanding researchers each giving one fifty minute lecture. There will also be
several 25 minute lecturers by younger researchers or graduate students.
For more details, see the
schedule

Series: Other Talks

Host: Dan Goldman, Physics

I introduce a class of dynamical systems which exhibit motion in their
lowest-energy states and thus spontaneously break time-translation
symmetry. Their Lagrangians have nonstandard kinetic terms and their
Hamiltonians are multivalued functions of momentum, yet they are perfectly
consistent and amenable to quantization. Possible applications to
condensed matter systems and cosmology will be discussed.