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Niklas Brännström, PhD

Postdoctoral research fellow

email: niklas.brannstrom at helsinki.fi

Telephone: +358-9-191 51529

Postal address:
Department of Mathematics
P.O. Box 68
FI-00014 University of Helsinki
Finland

Visiting address:
Room B421
Gustaf Hällströms gata 2b (Kumpula campus)
00014 University of Helsinki


Photograph courtesy of Oskari Ajanki

Teaching

Introduktion till diskret matematik, hösten 2009

Publications

Preprint:

N. Brännström, E. de Simone, V. Gelfreich, Geometric shadowing in slow-fast Hamiltonian systems with one slow degree of freedom, (preprint: http://arxiv.org/abs/0905.3087), 2009

V. Gelfreich, N. Brännström, Asymptotic series for the splitting of separatrices near a Hamiltonian bifurcation, (preprint: http://arxiv.org/abs/0806.2403), 2008

Papers:

N. Brännström, Averaging in weakly coupled discrete dynamical systems, Journal of Nonlinear Mathematical Physics, (to appear), 2009

N. Brännström, V. Gelfreich, Drift of slow variables in slow-fast Hamiltonian systems, Physica D 237, pp. 2913-2921, 2008

N. Brännström, Drift in the slow dynamics of Hamiltonian systems with two time scales, PhD Thesis, University of Warwick, Dec 2007.

Conference proceedings:

V. Gelfreich, N. Brännström, Slow drift in a slow-fast Hamiltonian system, conference proceedings of the 6th EUROMECH Nonlinear Dynamics Conference (ENOC 2008),http://lib.physcon.ru/?item=1604

 

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