Decomposition of Jacobians by Prym Varieties

Herbert Lange, Rubí E. Rodríguez

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English

Springer International Publishing AG
25 November 2022

Complex analysis, complex variables; Algebraic geometry

Series: Lecture Notes in Mathematics

This monograph studies decompositions of the Jacobian of a smooth projective curve, induced by the action of a finite group, into a product of abelian subvarieties. The authors give a general theorem on how to decompose the Jacobian which works in many cases and apply it for several groups, as for groups of small order and some series of groups. In many cases, these components are given by Prym varieties of pairs of subcovers. As a consequence, new proofs are obtained for the classical bigonal and trigonal constructions which have the advantage to generalize to more general situations. Several isogenies between Prym varieties also result.

By: Herbert Lange, Rubí E. Rodríguez
Imprint: Springer International Publishing AG
Country of Publication: Switzerland
Edition: 1st ed. 2022
Volume: 2310
Dimensions: Height: 235mm, Width: 155mm,
Weight: 415g
ISBN: 9783031101441
ISBN 10: 3031101448
Series: Lecture Notes in Mathematics
Pages: 251
Publication Date: 25 November 2022
Audience: Professional and scholarly , Undergraduate
Format: Paperback
Publisher's Status: Active

Introduction.- Preliminaries and basic results.- Finite covers of curves.- Covers of degree 2 and 3.- Covers of degree 4.- Some special groups and complete decomposabality.- Bibliography.- Index.

Herbert Lange is a retired professor at the university of Erlangen-Nuremberg. His main research interests are abelian varieties and vector bundles on algebraic curves. He is the coauthor of several books, among them the Grundlehren volume ""Complex Abelian Varieties"" and for the series Progress in Mathematics, ""Complex Tori"". RUBÍ E. RODRÍGUEZ is Professor of Mathematics at Universidad de La Frontera and Director of the Geometry at the Frontier Research Center. Her research interests include moduli spaces of curves and abelian varieties, with special attention to the action of groups and algebras.

Reviews for Decomposition of Jacobians by Prym Varieties

“The Decompositions. The entire book is quite thorough, with enough background to serve as a standalone reference for several mini courses.” (John T. Cullinan, Mathematical Reviews, May, 2024) “The book is very well written, and gives a number of results, and of examples, interesting in some fields of Algebraic Geometry, specially those concerning algebraic curves, or equivalently, Riemann surfaces. Also, it serves to recall the work of Sevín Recillas Pishmish, whose untimely death prevented him from continuing working on these topics.” (José Javier Etayo, zbMATH 1514.14001, 2023)