Dennis Sullivan, CUNY Graduate Center and SUNY-Stony Brook
Topology and Geometry of the Space of Closed Curves in a Manifold
Tuesday, September 08 2009, at 16:30
Dipartimento di Matematica - Università degli Studi di Milano, Via Saldini 50 - Aula Chisini | |
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Yaroslav D. Sergeyev, Università della Calabria
Numerical calculus with infinite and infinitesimal numbers and the Infinity computer
http://www.theinfinitycomputer.com
Monday, June 22 2009, at 17:00
Dipartimento di Matematica, Università di Milano, Sala di Rappresentanza |
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Abstract
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The lecture introduces a new methodology allowing one to execute numerical computations with finite, infinite, and infinitesimal numbers. It is based on the principle The part is less than the whole introduced by Ancient Greeks and applied to all numbers (finite, infinite, and infinitesimal) and to all sets and processes (finite and infinite). It is shown that it becomes possible to write down finite, infinite, and infinitesimal numbers by a finite number of symbols as particular cases of a unique framework different from those of the non-standard analysis and surreal numbers. The new approach gives possibility to introduce a new type of a computer - the Infinity Computer - able to operate numerically not only with finite numbers but also with infinite and infinitesimal ones (European Patent has been granted recently). The Infinity Calculator using the Infinity Computer technology is presented during the talk. An additional information can be downloaded from the page http://www.theinfinitycomputer.com
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Isaac Namioka, University of Washington
Analysis of the flow associated with the
function $n\mapsto\lambda^{n^k}$
Wednesday, June 17 2009, at 17:00
Dipartimento di Matematica, Politecnico di Milano, Aula Seminari III piano | |
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Gregory Margulis, Yale University
Homogeneous Dynamics And Number Theory
Monday, June 08 2009, at 16:30
Dipartimento di Matematica, Università di Milano, V. Saldini 50, Aula Chisini | |
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Gordana Todorov, Northeastern University (Boston, Stati Uniti)
Cluster categories and their relation to cluster algebras and semi-invariants
Wednesday, September 26 2007, at 17:00
Dipartimento di Matematica - Università degli Studi - Via Saldini 50 - Milano - Sala di Rappresentanza | |
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Marc Levine, Northeastern University (Boston, Stati Uniti)
Motivic homotopy theory
Monday, June 18 2007, at 17:00
Dipartimento di Matematica - Università degli Studi - Via Saldini 50 - Milano - Sala di Rappresentanza | |
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