Upcoming Events
March 2021
Bekah White, NC State, Inferring the microstructural properties of cortical bone from ultrasound attenuation
Chair: Alen Alexanderian (alexanderian@ncsu.edu, contact for Zoom access)
Find out moreMateusz Kwaśnicki, Wrocław University of Science and Technology, Poland
Zoom ID: 939 3643 7199 (opens 15 min prior to the meeting) Passcode: 9917
Find out moreHédy Attouch, Université Montpellier II, France, Acceleration of first-order optimization algorithms via inertial dynamics with Hessian driven damping
In a Hilbert space, for convex optimization, we report on recent advances regarding the acceleration of first-order algorithms. We rely on inertial dynamics with damping driven by the Hessian, and the link between continuous dynamic systems and algorithms obtained by…
Find out moreVladimir Baranovsky (UC Irvine), Integral model for graph configuration spaces
This is a report on the joint work with Matthew Levy. We use surjection operations on integral cochains tof a topological space X (described by McClure-Smith and Berger-Fresse) to describe a complex computing (co)homology of the cartesian power of X…
Find out moreRekha Thomas, When Two Cameras Meet a Cubic Surface
An important problem in computer vision is to understand the space of images that can be captured by an arrangement of cameras. A description of this space allows for statistical estimation methods to reconstruct three-dimensional models of the scene that…
Find out moreSteven Heilman, University of Southern California, Three Candidate Plurality is Stablest for Small Correlations
Suppose we model n votes in an election between two candidates as n i.i.d. uniform random variables in {-1,1}, so that 1 represents a vote for the first candidate, and -1 represents a vote for the other candidate. Then, for…
Find out moreAlexander Reznikov, Florida State University
Zoom meeting: Link
Find out moreJane Coons, NC State, Applications of toric geometry in algebraic statistics
Chair: Seth Sullivant (smsulli2@ncsu.edu, contact for Zoom access)
Find out moreSilvia Gazzola, University of Bath, Iterative regularization methods for large-scale linear inverse problems
Inverse problems are ubiquitous in many areas of Science and Engineering and, once discretized, they lead to ill-conditioned linear systems, often of huge dimensions: regularization consists in replacing the original system by a nearby problem with better numerical properties, in…
Find out moreHelen Cleaves, NC State, Global sensitivity analysis and reducing order modeling for high-dimensional systems
Chair: Alen Alexanderian (alexanderian@ncsu.edu, contact for Zoom access)
Find out moreRoberto Cominetti, Universidad Adolfo Ibáñez, Chile, Convergence rates for Krasnoselskii-Mann fixed-point iterations
A popular method to approximate a fixed point of a non-expansive map is C is the Krasnoselskii-Mann iteration. This covers a wide range of iterative methods in convex minimization, equilibria, and beyond. In the Euclidean setting, a flexible method to…
Find out moreApril 2021
Prerona Dutta, NC State, Metric entropy and nonlinear partial differential equations
Chair: Seth Sullivant (smsulli2@ncsu.edu, contact for Zoom access)
Find out moreVakhtang Putkaradze, Variational Methods for Active Porous Media
Many biological organisms are comprised of deformable porous media, with additional complexity of an embedded muscle. Using geometric variational methods, we derive the equations of motion for the dynamics of such active porous media. The use of variational methods allows…
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