| 日時: |
2005-07-05 11:00 - |
| 場所: |
研究本館2階220号室 |
| 会議名: |
Algebraic classification of M-theory orbifolds |
| 連絡先: |
丹後 |
| 講演者: |
Dr. Maxime Bagnoud (京都大学大学院 理学研究科) |
| 講演言語: |
英語 |
| アブストラクト: |
In this talk, a new method of treating orbifolds by expressing the orbifold action on the physical fields of the theory in a purely algebraic manner will be presented. Doing so, a description of the untwisted sector as an invariant subalgebra of the U-duality symmetry algebra of M-theory can be obtained, as well as a description of charged states as a nilpotent subalgebra of an Iwasawa decomposition related to a certain Satake diagram of the U-duality symmetry algebra. A description of the twisted sector as an invariant subalgebra under some algebra automorphism can also be given. A few simple examples will be treated in detail, as well as results for more physically realistic cases. |
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