- Friday, February 23, 2018, 12:00pm, 119 Physics, Wolfram Technologies in Education and Research
*Using Mathematica*

Troy Schaudt (Wolfram Technologies in Education and Research)- I'll be on campus giving a technical seminar on utilizing Mathematica, Wolfram|Alpha, and other Wolfram technologies for teaching and research, and I thought you might be interested in attending. I like to begin with a technical overview of Mathematica, as well as briefly touching on the creation of Wolfram|Alpha. Next, we can discuss emerging trends in technology and what is currently available (or being developed) to support those trends. Then, to give you a sense of what's possible, I'll discuss how other organizations use these tools for teaching and research. I think you'll be pleasantly surprised to see how suitable these technologies are for projects, course examples, and student assignments in any course where data and mathematical relationships are involved--from social science to business and economics and across all STEM fields. So that my presentation touches on the right topics, can you let me know where you'd like to use software more in your courses and research?

- Monday, February 26, 2018, 3:15pm, 119 Physics, Geometry/topology Seminar
*From instantons to vortices on spherically symmetric ALF manifolds*

Ákos Nagy (Duke University)- Yang-Mills theory on Asymptotically Locally Flat (ALF) 4-manifolds has been intensely studied by geometers and physicists since the late 70's. The most important examples are R^3 x S^1, the (multi-)Taub-NUT spaces, and the Euclidean Schwarzschild manifold. In this talk, I will outline the correspondence between spherically symmetric Yang-Mills instantons and planar Abelian vortices (following the ideas of Witten, Taubes, and Garcia-Prada), and then apply this instanton-vortex duality to spherically symmetric ALF 4-manifolds. Finally, I will show how this construction can be used to describe the low energy instanton moduli spaces of the Euclidean Schwarzschild manifold, and its generalizations. This is a joint work with Gonçalo Oliveira (IMPA).

- Wednesday, February 28, 2018, 12:00pm, 119 Physics, Applied Math And Analysis Seminar
*TBA*

Xiaoqian Xu (Carnegie Mellon University) - Thursday, March 1, 2018, 3:15pm, Physics 119, Probability Seminar
*title*

Hao Shen (Columbia University) - Wednesday, March 7, 2018, 12:00pm, 119 Physics, Applied Math And Analysis Seminar
*Multi-segment Reconstruction with Invariant Features*

Zhizhen (Jane) Zhao (UIUC)- Multi-segment reconstruction (MSR) problem consists of recovering a signal from noisy segments with unknown positions of the observation windows. One example arises in DNA sequence assembly, which is typically solved by matching short reads to form longer sequences. Instead of trying to locate the segment within the sequence through pair-wise matching, we propose a new approach that uses shift-invariant features to estimate both the underlying signal and the distribution of the positions of the segments. Using the invariant features, we formulate the problem as a constrained nonlinear least-squares. The non-convexity of the problem leads to its sensitivity to the initialization. However, with clean data, we show empirically that for longer segment lengths, random initialization achieves exact recovery. Furthermore, we compare the performance of our approach to the results of expectation maximization and demonstrate that the new approach is robust to noise and computationally more efficient.

- Thursday, March 8, 2018, 3:15pm, 119 Physics, Probability Seminar
*title*

Daniel Sanz-Alonso (Brown University)- abstract

- Wednesday, March 14, 2018, 12:00pm, Gross 330, Applied Math And Analysis Seminar
*TBA*

Gal Mishne (Yale) - Monday, March 19, 2018, 3:15pm, 119 Physics, Geometry/topology Seminar
*TBA*

Adam Saltz (University of Georgia)- TBA

- Tuesday, March 20, 2018, 3:00pm, 119 Physics, CNCS Seminar
*Making a Two-Dimensional Thermal Ideal Gas by Shaking Your Breakfast*

Eric Corwin (University of Oregon, Physics)- Active, driven systems as diverse as flocking starlings, swarming bacteria, and vibrating granular beds are by definition non-equilibrium, lacking a well defined thermal temperature that characterizes their dynamics. Because of this, the creation of a coherent non-equilibrium statistical mechanics has proven elusive, and it remains unclear whether, for any non-equilibrium system, a meaningful effective temperature exists. We have constructed an active, driven system of chaotic faraday waves whose statistical mechanics, we find, are surprisingly simple, mimicking those of a thermal ideal gas. We use real-time tracking of a single floating probe, energy equipartition, and the Stokes-Einstein relation to define and measure a pseudotemperature, diffusion constant, and coefficient of viscous friction for a test particle in this pseudothermal gas. Because of its simplicity this system serves as a starting point for direct experimental investigation of non-equilibrium statistical mechanics, much as the ideal gas is the starting point for equilibrium statistical mechanics.

- Wednesday, March 21, 2018, 12:00pm, 119 Physics, Applied Math And Analysis Seminar
*TBA*

Terry Loring (University of New Mexico) - Tuesday, March 27, 2018, 3:00pm, 119 Physics, CNCS Seminar
*TBA*

Jeffrey Wong - Wednesday, March 28, 2018, 12:00pm, Physics 119, Applied Math And Analysis Seminar
*TBA*

Nicolas Brunel (Duke) - Monday, April 2, 2018, 3:15pm, 119 Physics, Geometry/topology Seminar
*TBA*

Melissa Zhang (Boston College)- TBA

- Wednesday, April 4, 2018, 12:00pm, Physics 119, Applied Math And Analysis Seminar
*TBA*

Yu Gu (CMU) - Thursday, April 5, 2018, 3:15pm, UNC, 130 Hanes Hall, Probability Seminar
*title*

Jim Nolen (Duke University)- abstract

- Monday, April 9, 2018, 12:00pm, 119 Physics, Graduate/faculty Seminar
*TBA*

Ashleigh Thomas - Monday, April 9, 2018, 3:15pm, 119 Physics, Geometry/topology Seminar
*TBA*

Akram Alishahi (Columbia University, Mathematics) - Wednesday, April 11, 2018, 12:00pm, Physics 119, Applied Math And Analysis Seminar
*TBA*

Anna Gilbert (Michigan) - Thursday, April 19, 2018, 3:15pm, 119 Physics, Probability Seminar
*title*

Gautam Iyer (Carnegie Mellon) - Monday, April 23, 2018, 3:15pm, 119 Physics, Geometry/topology Seminar
*TBA*

Steven Rayan (University of Saskatchewan, Department of Mathematics & Statistics)- TBA

- Wednesday, April 25, 2018, 12:00pm, Physics 119, Applied Math And Analysis Seminar
*TBA*

Rongjie Lai (Rensselaer Polytechnic Institute) - Thursday, April 26, 2018, 9:00am, Physics 128, The Fourth Duke Mathematical Journal Conference
*The Fourth Duke Mathematical Journal Conference*

Various- The talks will cover an array of subject areas that are well-represented in the Duke Journal. There will be nine talks by young mathematicians. These speakers are: Emmanuel Breuillard (Munster) Ivan Corwin (Columbia) Alessio Figalli (Zurich) John Pardon (Princeton) Lu Wang (Wisconsin) Melanie Matchett Wood (Wisconsin) Giulia Saccà (MIT) Alex Wright (Stanford) Zhiwei Yun (Yale)

- Thursday, April 26, 2018, 3:15pm, 119 Physics, Probability Seminar
*title*

Mykhaylo Shkolnikov (Princeton University) - Friday, April 27, 2018, 9:00am, Physics 128, The Fourth Duke Mathematical Journal Conference
*The Fourth Duke Mathematical Journal Conference*

Various- The talks will cover an array of subject areas that are well-represented in the Duke Journal. There will be nine talks by young mathematicians. These speakers are: Emmanuel Breuillard (Munster) Ivan Corwin (Columbia) Alessio Figalli (Zurich) John Pardon (Princeton) Lu Wang (Wisconsin) Melanie Matchett Wood (Wisconsin) Giulia Saccà (MIT) Alex Wright (Stanford) Zhiwei Yun (Yale)

- Saturday, April 28, 2018, 9:00am, Physics 128, The Fourth Duke Mathematical Journal Conference
*The Fourth Duke Mathematical Journal Conference*

Various- The talks will cover an array of subject areas that are well-represented in the Duke Journal. There will be nine talks by young mathematicians. These speakers are: Emmanuel Breuillard (Munster) Ivan Corwin (Columbia) Alessio Figalli (Zurich) John Pardon (Princeton) Lu Wang (Wisconsin) Melanie Matchett Wood (Wisconsin) Giulia Saccà (MIT) Alex Wright (Stanford) Zhiwei Yun (Yale)

- Sunday, April 29, 2018, 9:00am, Physics 128, The Fourth Duke Mathematical Journal Conference
*The Fourth Duke Mathematical Journal Conference*

Various

This calendar is available on the Web at http://www.math.duke.edu/cgi-bin/mcal. To subscribe to the email list, please email calendar@math.duke.edu.

Generated at 11:01pm Friday, February 23, 2018 by Mcal. Top * Reload * Login