University of Calgary

Research Group Events

Submitted by admin on Thu, 05/05/2011 - 11:38am.

Active Deception in CyberSecurity

Submitted by jlongwor on Wed, 04/25/2012 - 10:33am.
Apr 26 2012 - 3:00pm
Apr 26 2012 - 4:00pm
Speaker: 

Angelos Keromytis, Columbia University

Location: 
BIO587

We will discuss the basic principles behind active deception, and its application in some interesting and technically difficult problem domains.

Mesh refining in data preprocessing for the seismic inversion problem

Submitted by rmmoffat on Mon, 04/09/2012 - 9:29am.
Apr 10 2012 - 12:00pm
Apr 10 2012 - 12:50pm
Speaker: 

Dr. Vladimir Zubov

University of Calgary

 

Location: 
MS 325

Seismic inversion is a complex wave equation coefficients problem. Modern geophysical equipment provides researchers with high resolution
images and seismograms which makes the wave data inversion more and more challenging.

Initial Value Problem for Quasilinear Dispersive Problems

Submitted by jlongwor on Mon, 04/02/2012 - 10:58am.
Apr 3 2012 - 12:00pm
Apr 3 2012 - 12:50pm
Speaker: 

Timur Akhunov

Location: 
MS 325

Dispersion is a familiar effect of disturbances disappearing to far away places. Intuitively this suggests some kind of transport mechanism, but a more careful "accounting" relates dispersion to a link between spatial and temporal oscillations.

The Martin boundary theory for the nonlinear p.d.e.1/2 \Delta u=2 u^2: A probabilistic approach

Submitted by jlongwor on Wed, 03/21/2012 - 8:40am.
Mar 27 2012 - 12:00pm
Mar 27 2012 - 12:50pm
Speaker: 

Deniz Sezer

Location: 
MS 325

The classical Martin boundary is concerned with harmonic functions: the non-negative solutions of Laplace's equation 1/2\Delta u=0 in a given domain D of R^n.  Harmonic functions are extensively studied and well understood. A culminating result is the integral representation of harmonic functions in terms of the so-called Martin kernel. Can one develop a similar theory for the nonlinear p.d.e.  1/2 \Delta u=2 u^2 as well?

Square roots for weighted operators

Submitted by rmmoffat on Mon, 03/19/2012 - 3:22pm.
Mar 20 2012 - 12:00pm
Mar 20 2012 - 12:50pm
Speaker: 

Cristian Rios
University of Calgary

Location: 
MS 325

We extend the validity of the Kato conjecture to operators with ellipticity controlled by an Mckemphoupt A_2 weight.