TH String Theory Seminar

Sebastian Greiner, 'Calabi-Yau Fourfolds with non-trivial Three-Form Cohomology'

4-3-006 - TH Conference Room (CERN)

4-3-006 - TH Conference Room


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In this seminar, we will discuss various aspects of Calabi-Yau fourfolds, relevant for M- and F-theory effective actions in three and four dimensions. First, we perform a dimensional reduction of type IIA supergravity on a general Calabi-Yau fourfold and then apply mirror symmetry at the large volume/large complex structure point to gain information about the non-trivial three-form cohomology of the fourfold. In the second part, we discuss an explicit construction of Calabi-Yau fourfolds as toric hypersurfaces. In course of this discussion we develop tools to compute the metric on the three-form cohomology that arises in the effective action of type IIA supergravity on the fourfold.

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