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2019 Psi-class intersections on Hassett spaces for genus 0 with all weights $\frac {1}{2}$
Nand Sharma
Rocky Mountain J. Math. 49(7): 2297-2324 (2019). DOI: 10.1216/RMJ-2019-49-7-2297

Abstract

Hassett spaces are moduli spaces of weighted stable pointed curves. We consider such spaces of curves of genus $0$ with weights all $\frac {1}{2}$. These spaces are interesting, since they are isomorphic to $\overline{M}_{0,n}$ but have different universal families and different intersection theory. We develop a closed formula for intersections of $\psi $-classes on such spaces. In our main result, we encode the formula for top intersections in a generating function obtained by applying a differential operator to the Witten potential.

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Nand Sharma. "Psi-class intersections on Hassett spaces for genus 0 with all weights $\frac {1}{2}$." Rocky Mountain J. Math. 49 (7) 2297 - 2324, 2019. https://doi.org/10.1216/RMJ-2019-49-7-2297

Information

Published: 2019
First available in Project Euclid: 8 December 2019

zbMATH: 1428.14045
MathSciNet: MR4039971
Digital Object Identifier: 10.1216/RMJ-2019-49-7-2297

Subjects:
Primary: 14Q99

Rights: Copyright © 2019 Rocky Mountain Mathematics Consortium

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Vol.49 • No. 7 • 2019
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