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James Faeder
Mon Jun 12, 2017
4:00 pm
My group uses computational approaches in collaboration with experimental labs to develop better mechanistic understanding of cell decision processes. One of the major challenges in modeling these systems is that the molecular constituents of signaling networks interact in a multitude of ways to form densely connected networks involving hundreds...
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Vera Mikyoung Hur
Mon Jun 5, 2017
4:00 pm
Stokes in his classical memoir made many contributions about periodic traveling waves at the free surface of a water flow. In particular, he conjectured that a wave of greatest possible height would exhibit stagnation with a 120 degree's corner. In the zero vorticity case, Amick, Fraenkel, and Toland answered the conjecture affirmatively. But...
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Howard Elman
Mon May 22, 2017
4:00 pm
We discuss efficient numerical algorithms for solving parameterized partial differential equations. These include reduced-basis methods, in which parameterized approximate solutions are constructed from a space of dimension significantly smaller than the dimension of the spatial discretization; stochastic Galerkin methods...
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Melvin Leok
Mon May 15, 2017
4:00 pm
Many gauge field theories can be described using a multisymplectic Lagrangian formulation, where the configuration manifold is the space of Lorentzian metrics. Group-equivariant interpolation spaces are critical to the construction of geometric structure-preserving discretizations of such problems, since they can be used to construct a variational...
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Chrysoula Tsogka
Mon May 8, 2017
4:00 pm
We consider the problem of coherent imaging using intensity-only measurements. The main challenge in intensity-only imaging is recovering phase information that is not directly available in the data, but is essential for coherent image reconstruction. Imaging without phases arises in many applications such as crystallography, ptychography...
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CANCELLED - James Faeder
Mon May 1, 2017
4:00 pm
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Steven Wise
Mon Apr 24, 2017
4:00 pm
I will describe and analyze preconditioned steepest descent (PSD) solvers for fourth and sixth- order nonlinear elliptic equations that include p-Laplacian terms on periodic domains in 2 and 3 dimensions. The highest and lowest order terms of the equations are constant-coefficient, positive linear operators, which suggests a natural...
