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,

EAS Seminar: Modeling NY/NJ Harbor Storm Surge Flood Hazards and Influences of Barriers and Natural Systems Apr 10, 2014 from 12:30 PM to 01:30 PM — MR 107,

Hurricane Sandy caused coastal flooding in Northern New Jersey and New York City that exceeded any levels reached in over three hundred years of the region’s history. Dr. Philip Orton will explain the physics behind the record-setting flooding, and then place Sandy’s flood heights in the context of (1) historically increasing storm tides and sea levels, (2) the hydrodynamic model-based FEMA flood hazard mapping/assessment for present-day sea levels, and (3) our similar assessment for future sea levels.

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.

Biology Department Colloquium, Eli Stahl, Mt. Sinai Feb 04, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

Genetic architecture of human complex traits through case/control GWAS data.

Biology Department Colloquium/Sally Hoskins, The City College of New York Feb 11, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

How new understanding of learning could transform principles and the C.R.E.A.T.E. experience, at CCNY and beyond.

Biology Department Colloquium/Reza Khayat, The City College of New York Feb 20, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

"Structural studies of Circovirus from entry to egress"

Biology Department Colloquium/Katharina De La Cruz, SUNY Buffalo Mar 04, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

TBD

Biology Department Colloquium/Andrea Viczian, SUNY Upstate Mar 11, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

"Understanding the signals that direct stem cells to eye cells"

Biology Department Colloquium/Robert Hijmans, UCDavis Mar 18, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

TBD

Biology Department Colloquium/Jason Fridley, Syracuse University Feb 25, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

"Forest invasions of Eastern North America: a case of pre-adaptation?"

Biology Department Colloquium/Frances Champagne, Columbia University Apr 08, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

"Epigenetics & Inheritance: Evolving Perspectives on Gene-Environment Interplay"

Biology Department Colloquium/Dieter Soll, Yale University Apr 15, 2013 from 01:00 PM to 02:00 PM — Marshak 801,

"Transfer RNA and Synthetic Biology"

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