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Universität Augsburg
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Universität Augsburg
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Frau Marine Fontaine
Univrsity of Manchester
spricht am
Montag, 31. Juli 2017
um
16:00 Uhr
im
Raum 2004 (L1)
über das Thema:
| Abstract: |
| Explicit symmetry breaking occurs when a dynamical system having a certain group of symmetry is perturbed in a way that the perturbation conserves only some symmetries of the original system. Simple examples include perturbing the rotational motion of small molecules by adding a weak magnetic field or perturbing a symmetric heavy top to one that is not symmetric. A geometric approach to study this phenomenon for Hamiltonian systems will be presented and we give a lower bound for the number of orbits of equilibria and relative equilibria that persist under a small perturbation, subject to some non-degeneracy condition and a regularity condition that depends on the geometry. This work is in collaboration with James Montaldi. |
| Hierzu ergeht herzliche Einladung. |
| Urs Frauenfelder |