# Seminar Archive - 2009

Our regular seminar program covers a broad range of topics from applied mathematics, pure mathematics and statistics. All staff and students are welcome.
A complete list of past seminars can be accessed via the left-hand menu.

*Dr. Robert Bailey - Carleton University*

The spanning tree packing number of a graph G, denoted s(G), is the largest number of edge-disjoint spanning trees in G. An obvious upper bound on s(G) is the edge-connectivity of G. We consider...

*Vidar Thomee - Chalmers University*

Talk on the lumped mass finite element method for parabolic problems.

*Prof. Sergey Astashkin - Samara State University*

The main result we will discuss is the following: the square function inequality holds in an rearrangement invariant space X for all sequences of independent mean zero random variables from X if and...

*Wolfgang Hackbusch - Max-Planck-Institut Leipzig*

Matrices of large size arise in particular from elliptic partial differential equations and integral equations. In the former case one make use of the sparsity, in the latter case a standard...

*Associate Professor Paul Kabaila - La Trobe University*

We consider h-step-ahead prediction for a time series process satisfying a Markov assumption. Our aim is to find an upper 1-a prediction limit that covers the h-step-ahead value of the time series...

*Kerstin Hesse - University of Sussex*

We consider the hybrid approach to scattered data approximation on the sphere S2 with radial basis functions plus a polynomial. If the given data of the unknown function contain noise, then we need...

*Prof. Evgeny M. Semenov - Voronezh State University*

Abstract (PDF).

*Dr Petr Stehlik - University of West Bohemia, Pilsen, Czech Republic*

Motivated by the importance of maximum principles in the theory of partial differential equations and in the numerical analysis, we establish simple maximum principles for basic partial dynamic...

*Prof. Vladimir Peller - Michigan State University*

I am going to speak about recent joint results with A. B. Aleksandrov. It is well known that a Lipschitz function does not have to be operator Lipschitz. In other words, the inequality |f(x)-f(y)| =...