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Mathematical Physics

arXiv:1812.03514 (math-ph)
[Submitted on 9 Dec 2018 (v1), last revised 1 Mar 2020 (this version, v2)]

Title:Bergman tau function: from Einstein equations and Dubrovin-Frobenius manifolds to geometry of moduli spaces

Authors:Dmitry Korotkin
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Abstract:We review the role played by tau functions of special type - called {\it Bergman} tau functions in various areas: theory of isomonodromic deformations, solutions of Einstein's equations, theory of Dubrovin-Frobenius manifolds, geometry of moduli spaces and spectral theory of Riemann surfaces. These tau functions are natural generalizations of Dedekind's eta-function to higher genus. Study of their properties allows to get an explicit form of Einstein's metrics, obtain new relations in Picard groups of various moduli spaces and derive holomorphic factorization formulas of determinants of Laplacians in flat singular metrics on Riemann surfaces, among other things.
Comments: Dedicated to 65th birthday of Emma Previato; a few misprints corrected
Subjects: Mathematical Physics (math-ph); Algebraic Geometry (math.AG); Exactly Solvable and Integrable Systems (nlin.SI)
Cite as: arXiv:1812.03514 [math-ph]
  (or arXiv:1812.03514v2 [math-ph] for this version)
  https://doi.org/10.48550/arXiv.1812.03514

Submission history

From: Dmitry Korotkin [view email]
[v1] Sun, 9 Dec 2018 16:32:10 UTC (59 KB)
[v2] Sun, 1 Mar 2020 04:06:42 UTC (59 KB)
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