EYAL GOREN, McGill University
RECENT DEVELOPMENTS IN THE THEORY OF COMPLEX MULTIPLICATION
Monday, June 27 2011, at 17:00
Università di Milano, Dipartimento di Matematica, Via Saldini 50, Sala Rappresentanza | |
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JEAN BOURGAIN, Institute for Advanced Study, Princeton
EXPANSION IN LINEAR GROUPS, SPECTRAL GAPS AND APPLICATIONS
Tuesday, June 21 2011, at 16:30
Luogo: Dipartimento di Matematica, V. Saldini, 50, Aula Chisini | |
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DE WITT L. SUMNERS, Florida State University
DNA TOPOLOGY
Tuesday, June 14 2011, at 14:30
Dipartimento di Matematica, Università di Milano Bicocca, aula seminari 3014 |
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Abstract
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This lecture will give an introduction to the topology and geometry of DNA. Cellular DNA is a long, thread-like molecule with remarkably complex topology. Enzymes that manipulate and carefully control the geometry and topology of cellular DNA perform many important cellular
processes (including segregation of daughter chromosomes, gene regulation, DNA repair, and generation of antibody diversity). Some enzymes pass DNA through itself via enzyme-bridged transient breaks in the DNA; other enzymes break the DNA apart and reconnect it to different ends. In the topological approach to enzymology, circular DNA is incubated with an enzyme, producing an enzyme signature in the form of DNA knots and links. By observing the changes in DNA geometry (supercoiling) and topology (knotting and linking) due to enzyme action, the enzyme binding and mechanism can often be characterized. This talk is intended for a general scientific audience, and will discuss topological models for DNA strand passage and exchange, including the analysis of topoisomerase experiments on circular DNA using knot theory.
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JUAN LUIS VAZQUEZ, Universidad Autonoma de Madrid
NONLINEAR DIFFUSION, FROM POROUS MEDIA TO FRACTIONAL DIFFUSION. EVOLUTIONS, FREE BOUNDARIES AND ASYMPTOTICS
Tuesday, June 07 2011, at 16:30
Dipartimento di Matematica, V. Saldini, 50, Aula Chisini | |
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ROBERTO MAURI, Dip.to di Ing. Chimica, Chimica Ind. e Scienze dei Materiali, Università di Pisa
MEAN FIELD MODELING OF MULTIPHASE SYSTEMS
Monday, May 23 2011, at 17:00
Dipartimento di Matematica, Politecnico di Milano, Aula Seminari VI piano | |
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THOMAS BARTSCH, University of Giessen
SOLITARY WAVES FOR COUPLED NONLINEAR SCHROEDINGER EQUATIONS
Wednesday, March 30 2011, at 17:00
Università di Milano, Dipartimento di Matematica, Via Saldini | |
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