## Scientific Lectures

- 21-Feb-08

Modelling the Endothelial Cell Response to Fluid Flow

Following the onset of shear stress due to fluid flow endothelial cells polarise and elongate in the direction of flow. How the mechanical signal is transformed into an organised and directed response is poorly understood. A multi-scale cellular P more››

University of British Columbia

- 7-Feb-08

An extension to the Brun-Titchmarsh theorem

The Siegel-Walfisz theorem states that for any B>0, we have Sp=x, p?d (mod v) 1 ~ x/f(v) log(x) for v = logB(x) and (v,d)=1. This only gives an asymptotic formula for the number of primes in an arithmetic progression for quite a small modulus v co more››

Simon Fraser University

- 7-Feb-08

Manin conjectures for K3 surfaces

The Manin conjectures describe for geometrically easy varieties how the number of their rational points of bounded height should grow as the height bound varies. In this talk I will describe recent computations that suggest a similar statement for more››

Simon Fraser University

- 7-Feb-08

Newton Polyhedra and Sharp Estimates for Oscillatory Integrals more››

University of British Columbia

- 31-Jan-08

When optimization becomes irrelevant: time-inconsistency and its consequences

In optimal control, one traditionally discounts the future at a constant rate: a gain u occurring at time t>0 is valued today at u exp(-rt), where r is the discount rate. If non-constant discount rates are used, as they should more››

University of Victoria

- 29-Jan-08

Root numbers and Selmer groups of elliptic curves

The theory of root numbers predicts when elliptic curves over number fields have rational points of infinite order. In this talk, we shall discuss results which bring together the root numbers and non-commutative Iwasawa theory. It is joint work with more››

University of British Columbia

- 29-Jan-08

Elliptic divisibility sequences are integer recurrence sequences, each of which is associated to an elliptic curve over the rationals together with a rational point on that curve. I'll give the background on these and present a higher-dimensional ana more››

University of British Columbia

- 24-Jan-08

Financial Hedging of Operational Flexibility

We extend the framework of real options to value the compound timing option owned by a manager of an industrial asset. The operator has control over the production modes, but faces operational constraints which introduce path-dependency. Moreover, more››

University of British Columbia

- 18-Jan-08

The purpose of this talk is to explore the new generation of computational mechanics procedures based on modern developments in computational geometry. The emphasis will be on the Isogeometric approach in which basis functions generated from NURBS more››

University of Alberta

- 18-Jan-08

Monitoring the health of Queensland's rivers: steps to designing an optimal spatial sampling scheme

Spatial sampling design is a key step in developing an optimal large-scale, multi-objective aquatic monitoring program. Aquatic systems can be complex and irregular, thus it is critical to ensure that a spatial design is statistically valid, imple more››

Simon Fraser University

- 17-Jan-08

- 17-Jan-08

Determinants of Laplacians as functions on spaces of metrics more››

University of British Columbia

- 15-Jan-08

Polynomial configurations in difference sets more››

University of British Columbia

- 14-Jan-08

Sensors, signal processing hardware, and algorithms are under increasing pressure to accommodate ever larger and higher-dimensional data sets; ever faster capture, sampling, and processing rates; ever lower power consumption; communication over ev more››

University of British Columbia

- 10-Jan-08

A bound from below for the temperature in compressible Navier-Stokes equations more››

University of British Columbia

- 13-Dec-07

We consider the well-known edge-disjoint path problem (EDP) where we are given a graph G and pairs of nodes (“demands”) s1t1, s2t2, . . . sktk. A subset F of {1, 2, . . . , k} is routable if there exists |F| edge-disjoint paths in G that conne more››

University of Victoria

- 30-Nov-07

Banach algebras of continuous functions and measures, and their second duals

For every Banach algebra A, there are two products on the second dual space A'' that make A'' into a Banach algebra; they may or may not coincide. A lot of information about the original algebra A comes easily by looking at these second duals. We more››

University of Alberta

- 29-Nov-07

Multi-Banach spaces and Multi-Banach Algebras

The very extensive theories of Banach spaces and Banach algebras, including algebras of operators on Banach spaces, are the foundation stones of much modern analysis. For certain reasons M. Polyakov and I were led to introduce a more more››

University of Alberta

- 23-Nov-07

Efficent smooth GMM through dimension reduction

We propose a new GMM criterion for models defined by conditional moment restrictions that takes into account a number of moment conditions which increases with the sample size. Our criterion allows us to reduce the dimensionality of the conditioni more››

University of Victoria

- 22-Nov-07

Level lowering and Shapiro's conjecture

Let E/Q be an elliptic curve over the rationals. One can associate two rational integers that measure the ramification of this elliptic curve over various primes, the conductor NE and the minimal discriminant ?E. The Szpiro's conjecture states that f more››

University of British Columbia