Vol. 14, No. 2, 2020

Download this article
Download this article For screen
For printing
Recent Issues

Volume 15
Issue 5, 1077–1342
Issue 4, 821–1076
Issue 3, 569–820
Issue 2, 309–567
Issue 1, 1–308

Volume 14, 10 issues

Volume 13, 10 issues

Volume 12, 10 issues

Volume 11, 10 issues

Volume 10, 10 issues

Volume 9, 10 issues

Volume 8, 10 issues

Volume 7, 10 issues

Volume 6, 8 issues

Volume 5, 8 issues

Volume 4, 8 issues

Volume 3, 8 issues

Volume 2, 8 issues

Volume 1, 4 issues

The Journal
About the Journal
Editorial Board
Editors’ Interests
Subscriptions
 
Submission Guidelines
Submission Form
Policies for Authors
Ethics Statement
 
ISSN: 1944-7833 (e-only)
ISSN: 1937-0652 (print)
Author Index
To Appear
 
Other MSP Journals
This article is available for purchase or by subscription. See below.
Characteristic cycles and Gevrey series solutions of $A$-hypergeometric systems

Christine Berkesch and María-Cruz Fernández-Fernández

Vol. 14 (2020), No. 2, 323–347
Abstract

We compute the L-characteristic cycle of an A-hypergeometric system and higher Euler–Koszul homology modules of the toric ring. We also prove upper semicontinuity results about the multiplicities in these cycles and apply our results to analyze the behavior of Gevrey solution spaces of the system.

PDF Access Denied

However, your active subscription may be available on Project Euclid at
https://projecteuclid.org/ant

We have not been able to recognize your IP address 34.239.160.86 as that of a subscriber to this journal.
Online access to the content of recent issues is by subscription, or purchase of single articles.

Please contact your institution's librarian suggesting a subscription, for example by using our journal-recom­mendation form. Or, visit our subscription page for instructions on purchasing a subscription.

You may also contact us at contact@msp.org
or by using our contact form.

Or, you may purchase this single article for USD 40.00:

Keywords
$A$-hypergeometric system, toric ring, $D$-module, characteristic cycle, irregularity sheaf, Gevrey series
Mathematical Subject Classification 2010
Primary: 13N10
Secondary: 14M25, 32C38, 33C70
Milestones
Received: 12 February 2019
Revised: 25 September 2019
Accepted: 13 November 2019
Published: 17 March 2020
Authors
Christine Berkesch
School of Mathematics
University of Minnesota
Minneapolis, MN
United States
María-Cruz Fernández-Fernández
Departamento de Álgebra e Instituto de Matemáticas-IMUS
Universidad de Sevilla
Spain