Science Division Calendar

Andrzej Zuk, "On the problem of Atiyah about L2 Betti numbers of closed manifolds" Feb 25, 2011 from 04:00 PM to 05:00 PM — Graduate Center of the City University of New York,

Prof. Andrzej Zuk, University of Paris will speak at the New York Group Theory Spring Seminar on February 25, 2011. His talk will be at 4pm in Room 5417. Join us for tea and cookies at 3:30pm in the the Mathematics Lounge on the 4th floor. The seminar meets at the Graduate Center of the City University of New York. The Graduate Center is located at 365 Fifth Avenue at 34th Street. If you are not affiliated with the City University of New York, you should allow a few extra minutes to sign in with the guards at the entrance.

Finitely Presented Solvable Groups Conference from Mar 17, 2011 09:00 AM to Mar 18, 2011 05:30 PM — City College of New York - Steinman Auditorium,

A 2-day conference at CCNY, focusing on the structure and properties of finitely presented solvable groups and on Gromov's view of groups as geometric objects.

NEW YORK GROUP THEORY SEMINAR - Mar 4th Mar 04, 2011 from 03:30 PM to 05:00 PM — Graduate Center / CUNY,

Moon Duchin, "Counting and distribution problems for word-metric spheres"

(Canceled) Math Colloquium: Martin Schmoll: Orbits on infinite surfaces stabilized by pseudo-Anosovs May 17, 2011 from 01:00 PM to 01:50 PM — NAC 6-113,

Cancelled: See note below. Math Colloquium talk by Martin Schmoll of Clemson University.

Math Colloquium: Arthur Szlam, "Low rank and block low rank matrix approximation" May 03, 2011 from 01:00 PM to 01:50 PM — NAC 1/511E,

Arthur Szlam (Courant Institute)

Math Colloquium: Brooke Feigon, "L-functions and number theory" May 05, 2011 from 01:00 PM to 01:50 PM — NAC 1/511E,

Brooke Feigon (MSRI)

Math Colloquium: Stuart Margolis: On Some Monoids Associated to Coxeter Groups Sep 20, 2011 from 01:00 PM to 02:00 PM — NAC 6-113,

Math Colloquium: Julien Keller: About the Calabi-Yau theorem : a numerical approach. Sep 15, 2011 from 01:00 PM to 02:00 PM — NAC 6-113,

Math Colloquium: Michael Shub: Solving one homogeneous polynomial in two complex variables Nov 10, 2011 from 12:20 PM to 01:20 PM — NAC 6-113,

Biochem Seminar: Jordan H. Chill, "A K+ channel @ 15: NMR has a say on KcsA" Jan 31, 2013 from 12:00 PM to 01:00 PM — MR-1027,

Jordan H. Chill, Department of Chemistry, Bar Ilan University, Ramat Gan, Israel

Biochem Seminar: Huey Huang, "What happens after peptides bind to the outer leaflet of the membrane"" Mar 20, 2013 from 12:00 PM to 01:00 PM — MR-1027,

Huey Huang, Chair and Professor, Dept of Physics & Astronomy, Rice University

Biochem Seminar: Arieh Warshel, "Advances in modeling of biological functions" Apr 03, 2013 from 12:00 PM to 01:00 PM — MR-1027,

Ariel Warshel, Professor of Chemistry, University of Southern California

Biochem Seminar: Dongping Zhong, "Soothing the burn: repairing sun-damaged DNA with enzymes" Apr 17, 2013 from 12:00 PM to 01:00 PM — MR-1027,

Dongping Zhong, Professor, Dept of Physics, and Dept of Chemistry & Biochemistry, The Ohio State University

Mathematics Colloquium: Kamiar Rahnama Rad (Columbia University), "High dimensional information processing with limited resources in neural systems" Feb 05, 2013 from 01:00 PM to 01:50 PM — NA 6113,

Abstract: As is the case in many information processing systems, in the nervous system information processing is performed by multiple neuronal networks each having access to different types and amounts of information. To understand information processing in the brain, we should thus study learning approaches that are based on computationally efficient information sharing methods. This is the focus of this talk. The first part of the talk will focus on a network of observers making local observations concerning an unknown vector. Each node faces a local identification problem, in the sense that it cannot consistently estimate the parameter in isolation. Employing a novel local message passing algorithm, I will show that despite local identification problems, local estimates can be as efficient as any ideal global estimator. In the second part of the talk, I will discuss optimal decoding, information rates and dimensionality reduction of high dimensional spatio-temporally correlated spiking activities. In particular, I will show that neural populations with strong history-dependent (non-Poisson) effects carry exactly the same information as do simpler equivalent populations of non-interacting Poisson neurons with matched firing rates. Finally, I will present a scalable and robust method for extracting as much information as possible from the simultaneously recorded activity of tens of thousands of neurons. The methodological innovation of our work is to use a regularizer that is robust to occasional discontinuities, and nevertheless if there is enough evidence in the data, enforces similarity between nearby neurons, all in an adaptive fashion.

High Energy Seminar: Justo López Sarrión, "Example of suppression of Lorentz Invariance Violation at low momenta by a fine-tuning at high momenta" Nov 15, 2013 from 02:00 PM to 03:00 PM — MR329,

High Energy Seminar: Justo López Sarrión, "Example of suppression of Lorentz Invariance Violation at low momenta by a fine-tuning at high momenta"

Current Topics in Physics: Jesse Balgley, "Directly Gated Graphene-hBN Heterostructures" Nov 13, 2013 from 11:00 AM to 12:00 PM — MR417A,

Current Topics in Physics: Jesse Balgley, "Directly Gated Graphene-hBN Heterostructures"

High Energy Seminar: Herbert Neuberger, "Lattice CFT" Nov 22, 2013 from 02:00 PM to 03:00 PM — MR329,

High Energy Seminar: Herbert Neuberger, "Lattice CFT"

Physics Seminar: Chandralekha Singh, "Improving student understanding of physics through research" Jan 25, 2013 from 12:30 PM to 01:30 PM — MR418N,

Physics Seminar: Chandralekha Singh, "Improving student understanding of physics through research"

Physics Executive Committee Meeting Jan 31, 2013 from 12:30 PM to 01:30 PM — MR419,

Physics Executive Committee Meeting

Physics Colloquium: Alexios Polychronakos; "Spinning Ghosts, or, Fun with Particles in One Dimension" Jan 30, 2013 from 04:00 PM to 05:00 PM — MR418N,

Physics Colloquium: Alexios Polychronakos; "Spinning Ghosts, or, Fun with Particles in One Dimension"

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