Abelian homotopy Dijkgraaf-Witten theory

Autor: Hansen, S. K., Slingerland, J. K., Turner, P. R.

Publikováno v: Adv.Theor.Math.Phys. 9 (2005) 321-353

We construct a version of Dijkgraaf-Witten theory based on a compact abelian Lie group within the formalism of Turaev's homotopy quantum field theory. As an application we show that the 2+1-dimensional theory based on U(1) classifies lens spaces up t

Externí odkaz: http://arxiv.org/abs/math/0410179

Reshetikhin-Turaev invariants of Seifert 3-manifolds for classical simple Lie algebras, and their asymptotic expansions

Autor: Hansen, S. K., Takata, T.

Publikováno v: J. Knot Theory Ramifications 13 (2004), no. 5, 617--668

We derive formulas for the Reshetikhin-Turaev invariants of all oriented Seifert manifolds associated to an arbitrary complex finite dimensional simple Lie algebra $\mathfrak g$ in terms of the Seifert invariants and standard data for $\mathfrak g$.

Externí odkaz: http://arxiv.org/abs/math/0209403

Relativistic analysis of upper hybrid wave propagation and trapping

Autor: Hansen, S. K., Nielsen, S. K., Stober, J.

Publikováno v: Physics of Plasmas
EUROfusion MST1 Team, ASDEX Upgrade Team, Hansen, S K, Nielsen, S K & Stober, J 2023, ' Relativistic analysis of upper hybrid wave propagation and trapping ', Physics of Plasmas, vol. 30, no. 4, 042103 . https://doi.org/10.1063/5.0138249

We investigate the impact of relativistic effects on upper hybrid (UH) waves in plasmas with thermal electrons, particularly focusing on modifications of the conditions under which UH wave trapping and related low-threshold parametric decay instabili

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b5e154d686b631c8835d8ff04159cd2c
https://hdl.handle.net/21.11116/0000-000C-F3EA-A21.11116/0000-000C-F3EC-8

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