Past Events

We shall start by outlining some aspects of the long history of the Artin Conjecture. Then we shall consider a multiplicative subgroup G of Q*. If p is a prime for which the valuation v p(x) = 0 for every x in G, then the group G p ={x (mod p): x is...

A video of this event is available on www.mathtube.org. Factor analysis is a core technique in applied statistics with implications for biology, education, finance, psychology and engineering. It represents a large matrix of data through a small...

The extent to which climate change may affect human health by facilitating biological invasion and vector-host interaction to increase vector-borne diseases has been under considerable debate, resolution of which imposes significant challenge for...

The conventional view holds that girih (geometric star-and-polygon) patterns in medieval Islamic architecture were conceived by their designers as a network of zigzagging lines, and drafted directly with a straightedge and a compass. I will describe...

In the 70's, Tutte developed a clever algebraic approach, based on certain "invariants," to solve a functional equation that arises in the enumeration of properly coloured triangulations. The enumeration of plane lattice walks confined to the first...

In this talk, we will discuss the theory of Vector and Banach lattices, as well as some recent developments. In particular, we will discuss order convergence and unbounded order convergence (uo-convergence). In many classical function spaces, uo...

The presentation will take us along the road to the ozone standard for the United States, announced in Mar 2008 by the US Environmental Protection Agency, and then the new proposal in 2014. That agency is responsible for monitoring that nation’s air...

In this talk, we will discuss order convergence and unbounded order convergence (uo-convergence) on vector lattices. In many classical function spaces, uo-convergence agrees with almost everywhere convergence. Thus, uo-convergence may be viewed as a...

Aggregation is an ubiquitous natural phenomenon that pervades both the animal world and many inanimate physical systems. In the animal kingdom, group formation is observed across all levels from bacterial colonies and insect swarms to complex...

The classical theorem of Hasse-Minkowski asserts that a quadratic form over a number field represents zero nontrivially provided it represents zero nontrivially over its completions at all its places. We discuss analogous local global principles over...