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MARCH 2007 |
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Discrete Mathematics Seminar |
Topic: |
Interger sets having the maximum number of distinct differences |
Presenter: |
Oleg Pikhurko, Carnegie Mellon University |
Date: |
Wednesday, March 14, 2007, Time: 2:15 p.m., Location: Fine 224 |
Abstract: |
See http://www.math.princeton.edu/~bsudakov/pikhurko2007-spring.pdf |
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Geometry, Representation Theory, and Moduli Seminar |
Topic: |
Weighted projective embeddings and constant scalar curvature orbifold Kahler metrics |
Presenter: |
R. Thomas, Imperial College |
Date: |
Wednesday, March 14, 2007, Time: 3:00 p.m., Location: Fine 214 |
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Department Colloquium |
Topic: |
Exact Solution of the Six-Vertex Model with Domain Wall Boundary Condition |
Presenter: |
Pavel Bleher, Indiana University and Purdue University, Indianapolis |
Date: |
Wednesday, March 14, 2007, Time: 4:30 p.m., Location: Fine 314 |
Abstract: |
The six-vertex model, or the square ice model, with domain wall boundary conditions (DWBC) has been introduced and solved for finite $N$ by Korepin and Izergin. The solution is based on the Yang-Baxter equations and it represents the free energy in terms of an $N\times N$ Hankel determinant. Paul Zinn-Justin observed that the Izergin-Korepin formula can be re-expressed in terms of the partition function of a random matrix model with a nonpolynomial interaction. We use this observation to obtain the large $N$ asymptotics of the six-vertex model with DWBC in the disordered phase. The solution is based on the Riemann-Hilbert approach and the Deift-Zhou nonlinear steepest descent method. As was noticed by Kuperberg, the problem of enumeration of alternating sign matrices (the ASM problem) is a special case of the the six-vertex model. We compare the obtained exact solution of the six-vertex model with known exact results for the 1, 2, and 3 enumerations of ASMs, and also with the exact solution on the so-called free fermion line. We prove the conjecture of Zinn-Justin that the partition function of the six-vertex model with DWBC has the asymptotics, $Z_N\sim CN^\kappa e^{N^2f}$ as $N\to\infty$, and we find the exact value of the exponent $\kappa$. |
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Ergodic Theory and Statistical Mechanics Seminar |
Topic: |
Large N asymptotics in random matrix models |
Presenter: |
Pavel Bleher, Indiana University and Purdue University Indianapolis |
Date: |
Thursday, March 15, 2007, Time: 2:00 p.m., Location: Fine 401 |
Abstract: |
We review recent results and methods on the large N asymptotics in unitary ensembles of random matrices. The main results concern with the universal scaling limits of eigenvalue correlation functions in the bulk of the spectrum, at the edge points, and at the critical points. We discuss the powerful Riemann-Hilbert approach to the problem. |
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Princeton University and Institute for Advanced Study Number Theory Seminar |
Topic: |
Mixed Hodge polynomials of character varieties |
Presenter: |
Fernando Rodriguez Villegas, Austin Texas |
Date: |
Thursday, March 15, 2007, Time: 4:30 p.m., Location: IAS SH-101 |
Abstract: |
Thanks to the Weil conjectures (proved by Deligne) we know that
counting points of varieties over finite fields yields topological information about them. In this talk I will describe such a
calculation for certain character varieties, parameterizing representations of the fundamental group of a Riemann surface into GL_n.
I will discuss the main ingredients of the calculation, which involves an array of techinques from combinatorics and representation theory of finite groups of Lie type. The outcome of the calculation has several geometric consequences about the varieties; for example, it allows us to compute their topological Euler characteristic. But more importantly they naturally suggest
interesting conjectures about their mixed Hodge polynomials.
Besides their intrinsic interest the varieties in question are closely related to the moduli spaces of Higgs bundles on the surface. Somewhat surprisingly we discover a tight connection between the geometry of these character varieties and the Macdonald polynomials of combinatorics.
This is joint work with T. Hausel and E. Letellier. |
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Topology Seminar |
Topic: |
Hunting the smallest hyperbolic 3-manifold with Mom-technology |
Presenter: |
Peter Milley, U. Melbourne |
Date: |
Thursday, March 15, 2007, Time: 4:30 p.m., Location: Fine 314 |
Abstract: |
Finding the minimum-volume compact hyperbolic 3-manifold is a long-outstanding problem that seems at last to be coming to a close. This talk will discuss recent joint work with David Gabai and Rob Meyerhoff to prove that the Weeks manifold is the smallest such manifold, and furthermore to classify all one-cusped hyperbolic 3-manifolds with volume less than 2.848. |
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Differential Geometry and Geometric Analysis Seminar |
Topic: |
Curvature and the continuity of optimal transportation maps
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Presenter: |
Robert McCann, University of Toronto |
Date: |
Friday, March 16, 2007, Time: 3:00 p.m., Location: Fine 314 |
Abstract: |
I shall briefly review new and old results concerning optimal transportation of mass between two manifolds, in particular the regularity theory of Ma, Trudinger, Wang and Loeper, and counterexamples due to Loeper. I will then describe an unexpected semi-Riemannian structure underlying these results, which yields the much-desired direct proof of a key result in this theory, and opens new directions. This represents joint work with Young-Heon Kim (University of Toronto). |
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Symplectic Geometry Seminar |
Topic: |
Formality and symplectic manifolds |
Presenter: |
Vicente Munoz, IMAFF and IAS |
Date: |
Friday, March 23, 2007, Time: 2:00 p.m., Location: Fine 214 |
Abstract: |
We shall review the notion of formality associated to the rational homotopy type of a space. As compact K\"ahler manifolds are always formal, this property is relevant to the study of topological properties of symplectic manifolds which do not admit K\"ahler structures. Several constructions of symplectic manifolds which are not formal will be discussed. |
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Analysis Seminar |
Topic: |
TBA |
Presenter: |
Ovidiu Savin, Columbia University |
Date: |
Monday, March 26, 2007, Time: 4:00 p.m., Location: Fine 110 |
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PACM Colloquium |
Topic: |
Modeling Science: Topic models of Scientific Journals and Other Large Text Databases |
Presenter: |
David Blei, Computer Science, Princeton University |
Date: |
Monday, March 26, 2007, Time: 4:00 p.m., Location: Fine 214 |
Abstract: |
A surge of recent research in machine learning and statistics has developed new techniques for finding patterns of words in document collections using hierarchical probabilistic models. These models are called "topic models" because the word patterns often reflect the underlying topics that are combined to form the documents; however topic models also naturally apply also such data as images and biological sequences.
After reviewing the basics of topic modeling, I will describe two related lines of research in this field, which extend the current state of the art.
First, I will describe probabilistic models designed to capture the dynamics of topics as they evolve over time. Many document collections change over time: scientific articles, emails, and search queries reflect evolving content, and it is important to model the corresponding evolution of the underlying topics.
Second, I will describe a probabilistic topic model which can capture correlations between the hidden topics. Previous models assume that the occurrence of the different topics are independent. In many document collections, however, the presence of a topic may be correlated with the presence of another. For example, a document about sports is more likely to also be about health than international finance.
In addition to giving quantitative, predictive models of a corpus, topic models provide a qualitative window into the structure of a large document collection. This allows a user to explore a corpus in a topic-guided fashion. I will demonstrate the capabilities of these new models on the archives of the journal Science, founded in 1880 by Thomas Edison. The models are built on the noisy text from JSTOR, an online scholarly journal archive, resulting from an optical character recognition engine run over the original bound journals.
(joint work with M. Jordan, A. Ng, and J. Lafferty)
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Algebraic Geometry Seminar |
Topic: |
Desingularization of quasi-excellent Q-schemes |
Presenter: |
Michael Temkin, University of Pennsylvania |
Date: |
Tuesday, March 27, 2007, Time: 4:30 p.m., Location: Fine 322 |
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Geometry, Representation Theory, and Moduli Seminar |
Topic: |
TBA |
Presenter: |
B. Eynard, CEA/Saclay |
Date: |
Wednesday, March 28, 2007, Time: 3:00 p.m., Location: Fine 214 |
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Ergodic Theory and Statistical Mechanics Seminar |
Topic: |
Regularity of solutions to the Navier-Stokes equations evolving from small initial data in a critical space |
Presenter: |
Natasa Pavlovich, Princeton University |
Date: |
Thursday, March 29, 2007, Time: 2:00 p.m., Location: Fine 401 |
Abstract: |
In this talk we will present a joint work with Pierre Germain and Gigliola Staffilani on regularity of solutions to the Navier-Stokes equations evolving from small initial data in a critical space in R^n. More precisely, in 2001 H. Koch and D. Tataru proved the existence of global in time solutions to the incompressible Navier-Stokes equations in R^n corresponding to the initial data small enough in BMO^{-1}. We prove that under certain smallness condition on the initial data in BMO^{-1}, the solutions constructed by Koch and Tataru are more regular. As a consequence, we obtain a decay estimate in time for any space derivative, and space analyticity of the solution. Also as an application of our regularity theorem, we prove a regularity result for self-similar solutions. |
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Differential Geometry and Geometric Analysis Seminar |
Topic: |
TBA |
Presenter: |
Simon Brendle, Stanford University |
Date: |
Friday, March 30, 2007, Time: 3:00 p.m., Location: Fine 314 |
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APRIL 2007 |
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Analysis Seminar |
Topic: |
TBA |
Presenter: |
Becca Thomases, Courant Institute |
Date: |
Monday, April 2, 2007, Time: 4:00 p.m., Location: Fine 110 |
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PACM Colloquium |
Topic: |
Simulation of Black Hole Collisions |
Presenter: |
Frans Pretorius, Physics, University of Alberta |
Date: |
Monday, April 2, 2007, Time: 4:00 p.m., Location: Fine 214 |
Abstract: |
The collision of two black holes is thought to be one of the most energetic events in the universe, emitting in gravitational waves as much as 5-10% of the rest mass energy of the black holes. An international effort is presently underway to detect gravitational waves from black hole collisions and other cataclysmic events in the universe. The early success of the detectors will rely on the matched filtering technique to extract what are, by the time the waves reach earth, very weak distortions in the local geometry of space and time. In the case of binary black hole mergers, obtaining the predicted waveforms for use in the matched filters requires numerical solution of the merger process during the final stages of the collision. In this talk I will describe the computational challenges and techniques required to simulate black holes within the framework of Einstein's theory of general relativity, and present results form recent successful simulations of black hole coalescence. |
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Algebraic Geometry Seminar |
Topic: |
Local systems and multiplier ideals |
Presenter: |
Nero Budur, Notre Dame and IAS |
Date: |
Tuesday, April 3, 2007, Time: 4:30 p.m., Location: Fine 322 |
Abstract: |
One of the most versatile tools that measures the complexity of singularities is the multiplier ideal. Locally, the multiplier ideals are quite well-understood through different interpretations and connections with many local invariants of singularities. In this talk we show how spaces of unitary local systems of rank one provide natural settings for studying global invariants of singularities involving multiplier ideals. |
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Mathematical Physics Seminar |
Topic: |
Laser-Atom Interaction: Ionization and Resonances for a model system |
Presenter: |
Christian Stucchio, Rutgers University |
Date: |
Tuesday, April 3, 2007, Time: 4:30 p.m., Location: Jadwin 343 |
Abstract: |
The behavior of an atom in a radiation field is a topic of fundamental importance in atomic physics. Except for a few limiting regimes (radiation is small, radiation is slowly varying), very little is known rigorously about the the time-dependent behavior of the electron's wavefunction. present a new method for analyzing the problem, based on domain restriction using Dirichlet-to-Neumann boundary conditions. As an application, I show that ionization always occurs (regardless of the frequency, or field strength) in a common physical model. This is a joint work with O. Costin and J. L. Lebowitz. |
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Discrete Mathematics Seminar |
Topic: |
TBA |
Presenter: |
Endre Szemeredi, Rutgers University |
Date: |
Wednesday, April 4, 2007, Time: 2:15 p.m., Location: Fine 224 |
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Department Colloquium |
Topic: |
TBA |
Presenter: |
Edward Frenkel, UC Berkeley |
Date: |
Wednesday, April 4, 2007, Time: 4:30 p.m., Location: Fine 314 |
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Operations Research and Financial Engineering Seminar |
Topic: |
TBA |
Presenter: |
Rama Cont, Columbia University |
Date: |
Wednesday, April 4, 2007, Time: 4:30 p.m., Location: E-219, E-Quad |
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Ergodic Theory and Statistical Mechanics Seminar |
Topic: |
Baby-talk on Sato-Tate problem |
Presenter: |
Nicholas Katz, Princeton University |
Date: |
Thursday, April 5, 2007, Time: 2:00 p.m., Location: Fine 401 |
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Symplectic Geometry Seminar *** Please note special time and location |
Topic: |
Symplectic 6-manifolds via tropical 3-manifolds: An informal introduction to torus fibrations of Calabi-Yau manifolds |
Presenter: |
Ricardo Castano-Bernard, Kansas State University |
Date: |
Thursday, April 5, 2007, Time: 3:00 p.m., Location: Fine 601 |
Abstract: |
Tropical manifolds are manifolds which admit an integral affine structure away from a codimension two singular set. In mirror symmetry, such manifolds are expected to arise as Gromov-Hausdorff limits of degenerating families of Calabi-Yau manifolds. In this talk I will give a simple algorithm that produces symplectic 6-manifolds starting from tropical 3-manifolds. |
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Special Department Colloquium |
Topic: |
Layered lattices |
Presenter: |
Hendrik Lenstra, Mathematisch Instituut, Universiteit Leiden |
Date: |
Thursday, April 5, 2007, Time: 4:30 p.m., Location: TBA |
Abstract: |
Lattice basis reduction algorithms can be used for solving systems of linear equations over the ring of integers. An analysis of this application suggests that it is more appropriately handled by means of a "layered lattice". This is a new notion of lattice, for which the length function takes values in an ordered vector space of dimension greater than one. |
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Symplectic Geometry Seminar |
Topic: |
Lagrangian 3-torus fibrations |
Presenter: |
Ricardo Castano-Bernard, Kansas State University |
Date: |
Friday, April 6, 2007, Time: 2:00 p.m., Location: Fine 214 |
Abstract: |
In the paper "Topological Mirror Symmetry," Mark Gross developed a method to construct topological models of mirror pairs of Calabi-Yau manifolds. These models are equipped with SYZ-dual topological 3-torus fibrations. In this talk, we give a generalization of Gross' construction to the symplectic category. We shall explain how to modify topological fibrations to obtain Lagrangian fibrations giving rise to symplectic models of mirror pairs of Calabi-Yau 3-manifolds. These models are naturally associated to the conjectural tropical limits of degenerating families of CY's. |
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Differential Geometry and Geometric Analysis Seminar |
Topic: |
Energy functionals, Kahler-Einstein metrics, and the Moser-Trudinger-Onofri inequality |
Presenter: |
Yanir Rubinstein, MIT |
Date: |
Friday, April 6, 2007, Time: 3:00 p.m., Location: Fine 314 |
Abstract: |
The problem of finding necessary and sufficient conditions for the existence of a Kahler-Einstein metric on a Fano manifold has attracted much attention. Fundamental work done in the '80s related this question to certain energy functionals defined on the infinite-dimensional space of Kahler metrics. In the mid '90s Tian provided a first characterization of Kahler-Einstein manifolds in terms of two such functionals. In this talk we present a generalization of this analytic characterization to a family of energy functionals defined by Chen and Tian. We also show how our arguments provide a new proof of the classical Moser-Trudinger-Onofri inequality on the sphere and how they can be used to formulate an extension of it for higher-dimensional manifolds, extending the work of Ding and Tian. |
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Analysis Seminar |
Topic: |
TBA |
Presenter: |
Jared Wunsch, Northwestern University |
Date: |
Monday, April 9, 2007, Time: 4:00 p.m., Location: Fine 110 |
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PACM Colloquium |
Topic: |
Dispersive shock waves in homogeneous and periodic systems |
Presenter: |
Jason W. Fleischer, Electrical Engineering, Princeton University |
Date: |
Monday, April 9, 2007, Time: 4:00 p.m., Location: Fine 214 |
Abstract: |
Dispersive shock waves (DSW) are a fundamental type of nonlinear wave and appear in many hydrodynamic settings, including fluids, superfluids, plasma, and optics. Their basic existence conditions are a dispersive medium with positive pressure (e.g. repulsive interactions or defocusing nonlinearity) and a high density/intensity region atop a low-level background. In the ensuing dynamics, different components of the initial hump couple to the background and walk off from each other. Unlike ordinary shock waves, which have a well-defined front due to viscosity, DSWs are characterized by an oscillating front. Here, an overview of DSWs is given in both homogeneous and periodic media. In homogeneous media, particular attention is paid to shock wave interactions and the dynamics of mode coupling, in both one and two dimensions. In periodic media, the focus is on modified dynamics due to the underlying Floquet-Bloch mode structure and the momentum-dependent dispersion profile. The results show enhanced energy transport among modes and bands and represent the opposite nonlinear regime from lattice (gap) solitons. In all cases, theory is compared to recent experiments in nonlinear optical systems, Bose-Einstein condensates, and plasma. |
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Algebraic Geometry Seminar |
Topic: |
TBA |
Presenter: |
Jacob Lurie, Harvard and AIM |
Date: |
Tuesday, April 10, 2007, Time: 4:30 p.m., Location: Fine 322 |
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Operations Research and Financial Engineering Seminar |
Topic: |
Reliable methods for rare event estimation |
Presenter: |
Paul Dupuis, Brown University |
Date: |
Tuesday, April 10, 2007, Time: 4:30 p.m., Location: E-219, E-Quad |
Abstract: |
Monte Carlo estimation of small probabilities and expected values determined by rare events can be tricky. The two most commonly applied methods are those based on change-of-measure arguments and known as importance sampling, and those which use branching processes and are referred to as multi-level splitting. There are a number of heuristic guides to the design of schemes, and certainly successful applications have been reported. However, it is also known that these guides can suggest schemes that perform badly. In this talk we first review both approaches and the sources of poor performance. When the probability of interest can be approximated via large deviations, there is a naturally related nonlinear partial differential equation (known as a Hamilton-Jacobi-Bellman equation). Schemes for both types of approximation can be associated with what are called importance functions. We will show that these schemes are stable in an appropriate sense if and only if the importance function is a subsolution to this equation, and also characterize the performance of the scheme in terms of the value of the function at a certain point. |
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Discrete Mathematics Seminar |
Topic: |
TBA |
Presenter: |
David Gamarnik, MIT |
Date: |
Wednesday, April 11, 2007, Time: 2:15 p.m., Location: Fine 224 |
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Geometry, Representation Theory, and Moduli Seminar |
Topic: |
TBA |
Presenter: |
Samuel Grushevsky, Princeton University |
Date: |
Wednesday, April 11, 2007, Time: 3:00 p.m., Location: Fine 214 |
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Ergodic Theory and Statistical Mechanics Seminar |
Topic: |
Quantum random walks on integer lattices |
Presenter: |
Robin Pemantle, Univ. of Penn. |
Date: |
Thursday, April 12, 2007, Time: 2:00 p.m., Location: Fine 401 |
Abstract: |
Motivated by quantum information theory, a number of nearest neighbor quantum particle models have been introduced, mostly in the last five years, under the name quantum random walk (QRW). Many of these results may be unified and extended by working directly with a space-time generating function. Obtaining the generating function is in fact quite simple. Transferring this back to limiting behavior of QRW is a matter of harnessing some recent technology concerning asymptotics of multivariate generating functions. This is joint work with M. Wilson, Y. Baryshnikov and others. |
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Symplectic Geometry Seminar |
Topic: |
Moduli spaces of folded holomorphic maps |
Presenter: |
Jens von Bergmann, University of Notre Dame |
Date: |
Friday, April 13, 2007, Time: 2:00 p.m., Location: Fine 214 |
Abstract: |
The theory of folded holomorphic maps is a program to extend the tools of $J$--holomorphic curves to all oriented 4--manifolds by utilizing folded symplectic structures. A folded symplectic structure on a manifold is a closed 2-form that is non-degenerate away from a real codimension 1 hypersurface ("fold"), on which its kernel gives a 1-dimensional foliation. Every oriented 4--manifold admits such a structure. Folded holomorphic maps are pairs of $J$--holomorphic maps from two halfs of a Riemann surfaces. The halfs are separated by a codimension 1 submanifold, which has image on the fold and is satisfying an appropriate boundary condition. This boundary condition constitutes the heart of the theory and can be visualized by "tunneling" in the fold, allowing maps to exit at a location that is different from where they enter the fold. We prove that under the simplifying assumption that the fold is "circle-invariant" this leads to a Fredholm problem. Such folds occur frequently. Under suitable genericity assumptions, moduli spaces of folded holomorphic maps have the expected dimension. In the case of pseudoconvex folds we show that they possess a natural compactification with boundary stratum of codimension at least 2. We will explain the theory and the mentioned results and give examples of moduli spaces of folded holomorphic maps, including moduli spaces of maps into the the 4-sphere. |
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Differential Geometry and Geometric Analysis Seminar |
Topic: |
TBA |
Presenter: |
Xiuxiong Chen, University of Winsconsin |
Date: |
Friday, April 13, 2007, Time: 3:00 p.m., Location: Fine 314 |
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Analysis Seminar |
Topic: |
Soliton collision for the nonintegrable gKdV equations |
Presenter: |
Yvan Martel, Versailles |
Date: |
Monday, April 16, 2007, Time: 4:00 p.m., Location: Fine 110 |
Abstract: |
See http://www.math.princeton.edu/~seminar/2006-07-sem/MartelAbstract4-16-2007.pdf |
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PACM Colloquium |
Topic: |
TBA |
Presenter: |
Daniel Rockmore, Mathematics, Dartmouth College |
Date: |
Monday, April 16, 2007, Time: 4:00 p.m., Location: Fine 214 |
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Algebraic Geometry Seminar |
Topic: |
TBA |
Presenter: |
Junecue Suh, Princeton University |
Date: |
Tuesday, April 17, 2007, Time: 4:30 p.m., Location: Fine 322 |
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Department Colloquium |
Topic: |
TBA |
Presenter: |
Curtis T McMullen, Harvard University |
Date: |
Wednesday, April 18, 2007, Time: 4:30 p.m., Location: Fine 314 |
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Symplectic Geometry Seminar |
Topic: |
TBA |
Presenter: |
Jean-Michel Bismut, U Paris-Sud and NYU |
Date: |
Friday, April 20, 2007, Time: 2:00 p.m., Location: Fine 214 |
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PACM Colloquium |
Topic: |
Heterogeneous Lipid Bilayers: Evolving Microstructures in Biology |
Presenter: |
Mikko Haataja, MAE, Princeton University |
Date: |
Monday, April 23, 2007, Time: 4:00 p.m., Location: Fine 214 |
Abstract: |
The design and processing of materials with novel physical and mechanical properties requires a fundamental understanding of the connections between processing, microstructure, and properties. For example, mechanical properties in pure metals and alloys can be varied by manipulating the polycrystalline grain size or the size of the compositional domains through heat treatment, while elastic strain provides a way to tune the optical properties of self-assembled quantum dots during growth. In an analogous manner, the biological function of cell membranes is strongly affected by the details of the local "microstructure".
Typically, microstructural evolution takes place across multiple length and time scales, ranging from atomistic to mesoscopic ones. In this talk I will describe our recent efforts in developing physically-based, coarse-grained continuum models, which bridge the atomistic and mesoscopic scales, to elucidate lateral organization and non-equilibrium dynamics of heterogeneous lipid bilayers. In particular, I will focus on spatially organized, dynamic heterogeneities in the local lipid composition ("lipid rafts") which have been implicated in many important cellular processes including signal transduction, membrane trafficking, cytoskeleton organization, and pathogen entry. |
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Algebraic Geometry Seminar |
Topic: |
TBA |
Presenter: |
David Harbater, University of Pennsylvania |
Date: |
Tuesday, April 24, 2007, Time: 4:30 p.m., Location: Fine 322 |
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Operations Research and Financial Engineering Seminar |
Topic: |
TBA |
Presenter: |
Andreas Hamel, Princeton University |
Date: |
Tuesday, April 24, 2007, Time: 4:30 p.m., Location: E-219, E-Quad |
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Discrete Mathematics Seminar |
Topic: |
TBA |
Presenter: |
Assaf Naor, NYU |
Date: |
Wednesday, April 25, 2007, Time: 2:15 p.m., Location: Fine 224 |
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Department Colloquium |
Topic: |
TBA |
Presenter: |
Jacob Rasmussen, Princeton University |
Date: |
Wednesday, April 25, 2007, Time: 4:30 p.m., Location: Fine 314 |
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Symplectic Geometry Seminar |
Topic: |
TBA |
Presenter: |
Peter Albers, NYU |
Date: |
Friday, April 27, 2007, Time: 2:00 p.m., Location: Fine 214 |
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Differential Geometry and Geometric Analysis Seminar |
Topic: |
TBA |
Presenter: |
Meijun Zhu, University of Oklahoma |
Date: |
Friday, April 27, 2007, Time: 3:00 p.m., Location: Fine 314 |
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MAY 2007 |
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Algebraic Geometry Seminar |
Topic: |
TBA |
Presenter: |
Charles Cadman, University of Michigan |
Date: |
Tuesday, May 1, 2007, Time: 4:30 p.m., Location: Fine 322 |
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Operations Research and Financial Engineering Seminar |
Topic: |
TBA |
Presenter: |
Rong Chen, University of Illinois at Chicago |
Date: |
Tuesday, May 1, 2007, Time: 4:30 p.m., Location: E-219, E-Quad |
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Department Colloquium |
Topic: |
TBA |
Presenter: |
Tamar Ziegler, University of Michigan |
Date: |
Wednesday, May 2, 2007, Time: 4:30 p.m., Location: Fine 314 |
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Operations Research and Financial Engineering Seminar |
Topic: |
TBA |
Presenter: |
Frank Heyde, MLU Halle-Wittenberg |
Date: |
Tuesday, May 8, 2007, Time: 4:30 p.m., Location: E-219, E-Quad |
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Symplectic Geometry Seminar |
Topic: |
TBA |
Presenter: |
Robert Lipshitz, Columbia University |
Date: |
Friday, May 11, 2007, Time: 2:00 p.m., Location: Fine 214 |
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