University of Calgary

Web applications (web mail, web stores, social networks) keep massive amounts of data that must be readily available to users. The storage system underlying these applications has evolved dramatically over the past 25 years, from file systems, to SQL...

We discuss some algebraic and combinatorial constructions of quantum codes. We give a variant of Construction X (known mainly from the theory of classical linear codes) that produces many new stabilizer quantum error correcting codes of lengths...

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Dr. Howitt's talk will focus on Maximum Entropy estimators and Chebychev polynomial approximations to costate functions, with examples available for download in two papers, Estimating Disaggregate Production Functions: An Application to Northern...

PIMS Distinguished Chair Lectures 2006

In various scientific fields from astro- and high energy physics to neuroimaging, researchers observe entire images or functions rather than single observations. The integral geometric properties, notably the Euler characteristic of the level...

A colorful diagrammatic language for the 2-category of categories has been exposited in a recent monograph by Dan Marsden and Ralf Hinze. In this tutorial, we will demonstrate how to use the language, and we will emphasize its benefits for the study...

Acyclic models, as its commonly seen today, is a proof technique used to show when two chain complexes are chain equivalent or have isomorphic homology. It originated as a theorem by Eilenberg and MacLane (1953), where it was immediately used to show...

The aim of this talk about work in progress is to describe the local/separable factorization for restriction functors and for join restriction functors.