Flat Rank Two Vector Bundles on Genus Two Curves Paperback / softback
by Viktoria Heu, Frank Loray
Part of the Memoirs of the American Mathematical Society series
Paperback / softback
Description
The authors study the moduli space of trace-free irreducible rank 2 connections over a curve of genus 2 and the forgetful map towards the moduli space of underlying vector bundles (including unstable bundles), for which they compute a natural Lagrangian rational section.
As a particularity of the genus $2$ case, connections as above are invariant under the hyperelliptic involution: they descend as rank $2$ logarithmic connections over the Riemann sphere.
The authors establish explicit links between the well-known moduli space of the underlying parabolic bundles with the classical approaches by Narasimhan-Ramanan, Tyurin and Bertram.
This allows the authors to explain a certain number of geometric phenomena in the considered moduli spaces such as the classical $(16,6)$-configuration of the Kummer surface.
The authors also recover a Poincare family due to Bolognesi on a degree 2 cover of the Narasimhan-Ramanan moduli space.
They explicitly compute the Hitchin integrable system on the moduli space of Higgs bundles and compare the Hitchin Hamiltonians with those found by van Geemen-Previato.
They explicitly describe the isomonodromic foliation in the moduli space of vector bundles with $\mathfrak sl_2$-connection over curves of genus 2 and prove the transversality of the induced flow with the locus of unstable bundles.
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Available to Order - This title is available to order, with delivery expected within 2 weeks
- Format:Paperback / softback
- Pages:107 pages
- Publisher:American Mathematical Society
- Publication Date:30/07/2019
- Category:
- ISBN:9781470435660
Other Formats
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Information
-
Available to Order - This title is available to order, with delivery expected within 2 weeks
- Format:Paperback / softback
- Pages:107 pages
- Publisher:American Mathematical Society
- Publication Date:30/07/2019
- Category:
- ISBN:9781470435660
