学术报告
Non-orientable surfaces and electric-magnetic duality，Professor Siye Wu (國立清華大學)
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时间： 2016-08-03
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题目：Non-orientable surfaces and electric-magnetic duality
报告人：Professor Siye Wu (國立清華大學)
摘要： We consider a twisted N=4 gauge theory on a 4-dimensional spacetime that incorporates a non-orientable surface and show that it reduces to a sigma-model on a worldsheet with boundary, where branes appear naturally. Special attention is paid to the topology of the bundle over the 4-manifold and its interpretation from the 2-dimensional point of view.
时间： 8月3日（周三）15:00-16:00
地点：首都师大北一教学楼708
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