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Turing mechanism for homeostatic control of synaptic density during C. elegans growth (Heather Zinn Brooks, UCLA)

Emmy Noether Room, Millikan 1021, Pomona College 610 N. College Ave., Claremont, California

It has been observed that motor neuron synapses in the worm C. elegans are remarkably evenly spaced, even during growth and development. In this work, we propose a novel mechanism for Turing pattern formation that provides a possible explanation for the regular spacing of synapses along the ventral cord of C. elegans during development. The […]

A renormalization approach to existence of the blow-up solutions of the Navier-Stokes equations (Denis Gaidashev, Uppsala University, Sweden)

Emmy Noether Room, Millikan 1021, Pomona College 610 N. College Ave., Claremont, California

The Navier-Stokes existence and smoothness problem is one of the most important open problems in modern mathematics.   Ya. Sinai and D. Li have proposed a renormalization approach to constructing a counter-example to existence. In this approach, existence of  a blow-up solution (a solution whose energy becomes infinite in finite time) is equivalent to existence of fixed […]

Weil sums of binomials: properties and applications (Daniel Katz, CSUN)

Millikan 2099, Pomona College 610 N. College Ave., Claremont, CA, United States

We consider sums in which an additive character of a finite field F is applied to a binomial whose individual terms (monomials) become permutations of F when regarded as functions.  These Weil sums characterize the nonlinearity of power permutations of interest in cryptography.  They also tell us about the correlation of linear recursive sequences over finite fields that are used […]

Convolutional Dictionary Learning for Tomographic Reconstruction (Cristina Garcia-Cardona, LANL)

Argue Auditorium, Pomona College 610 N. College Ave., Claremont, CA, United States

Convolutional sparse representation is an efficient tool for computing sparse representations for entire signals in terms of sums of a set of convolutions with dictionary filters. Unlike representations that are based on overlapping image patches, the convolutional representation optimizes over the entire image, yielding representations that are very sparse both spatially and across the filters. […]

A Martingale Approach to the Question of Fiscal Stimulus (Michael Imerman, CGU)

Emmy Noether Room, Millikan 1021, Pomona College 610 N. College Ave., Claremont, California

Joint work with Larry Shepp & Philip Ernst In this paper we develop a mathematical model to address an ongoing politico-economic debate between Democrats and Republicans. Democrats in the US say that government spending can be used to “grease the wheels’ of the economy, create wealth, and increase employment; the Republicans say that government spending […]

Sperner’s lemma: generalizations and applications (Oleg Musin, UT Rio Grande Valley)

Millikan 2099, Pomona College 610 N. College Ave., Claremont, CA, United States

The classical Sperner -  KKM (Knaster - Kuratowski - Mazurkiewicz) lemma has many applications  in combinatorics, algorithms, game theory and mathematical economics. In this talk we consider generalizations of this lemma as well as Gale's colored KKM lemma and Shapley's KKMS theorem. It is shown that spaces and covers can be much more general and […]

The kissing number and related problems (Oleg Musin, University of Texas Rio Grande Valley)

Argue Auditorium, Pomona College 610 N. College Ave., Claremont, CA, United States

Abstract: The kissing number problem asks for the maximal number k(n) of equal size nonoverlapping spheres in n-dimensional space that can touch another sphere of the same size. This problem in dimension three was the subject of a famous discussion between Isaac Newton and David Gregory in 1694. In three dimensions the problem was finally […]

GEMS Workshop: Exploring the fascinating world of prime numbers, Part II with Professor Adolfo Rumbos, from Pomona College.

Shanahan 1480, Harvey Mudd College 301 Platt Blvd., Claremont, CA, United States

TOPIC: Exploring the fascinating world of prime numbers, Part II The study of patterns in the sequence of prime numbers has fascinated mathematicians for centuries.  Are there formulas that generate prime numbers?  Are there patterns in the distribution of prime numbers and the distribution of gaps between consecutive primes?  In this series of two workshops, […]

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Transfinite $\zeta$-metrics (Zair Ibragimov, CMC)

Emmy Noether Room, Millikan 1021, Pomona College 610 N. College Ave., Claremont, California

I will discuss the concept of transfinite ζ-metrics. In some details I will discuss transfinite Apollonian metric in the settings of semi-metric spaces. I will discuss specific examples of domains where the transfinite Apollonian metric can be computed explicitly. This is a preliminary work.

The Bateman—Horn conjecture II: applications (Stephan Garcia, Pomona)

Millikan 2099, Pomona College 610 N. College Ave., Claremont, CA, United States

We begin with a review of the Bateman—Horn conjecture, which sheds light on the intimate relationship between polynomials and prime numbers.  In this expository talk, we survey a host of applications of the conjecture.  For example, Landau’s conjecture, the twin prime conjecture, and the Green—Tao theorem are all consequences of the Bateman—Horn conjecture.  Moreover, the […]