Genus-zero r-spin invariants
Tyler Kelly (Birmingham)
I’ll define genus-zero r-spin invariants and give a closed formula for them. These are the closed enumerative invariants for the simplest Landau-Ginzburg model with a well-defined closed enumerative theory. The formula is a piecewise polynomial. This was done through making an intertwining story between cohomological field theories and tropical techniques, along with some combinatorial work. This is joint work with Renzo Cavalieri and Rob Silversmith.
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