Logarithmic cohomological field theories
arXiv (Cornell University)(2023)
摘要
We introduce a new logarithmic structure on the moduli stack of stable curves, admitting logarithmic gluing maps. Using this we define cohomological field theories taking values in the logarithmic Chow cohomology ring, a refinement of the usual notion of a cohomological field theory. We realise the double ramification cycle as a partial logarithmic cohomological field theory.
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关键词
logarithmic cohomological field theories,field theories
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