Multitoric surfaces and Euler obstruction of a function
type: Item
instance of: scholarly article
title: Multitoric surfaces and Euler obstruction of a function
zbMATH Open document ID: 1359.32021
DOI: 10.1142/S0129167X16500841
published in: International Journal of Mathematics
publication date: 2016-11-02T00:00:00Z
Mathematics Subject Classification ID: 32S05
Mathematics Subject Classification ID: 55S35
Mathematics Subject Classification ID: 14M25
zbMATH DE Number: 6647109
zbMATH Keywords: multitoric surfaces
zbMATH Keywords: determinantal surfaces
zbMATH Keywords: Euler obstruction of a function
zbMATH Keywords: Brasselet number
MaRDI profile type: Publication
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author: T. M. Dalbelo
author: M. S. Pereira
review text: In this paper a formula is given for the Euler obstruction of a function, introduced by Brasselet, Massey, Parameswaran and Seade, for nondegenerate functions on multitoric surfaces. A reducible surface is multitoric, if each irreducible component is a toric surface with torus action induced by a torus action on the ambient space. As application the authors study functions on three classes of reducible determinantal varieties, which are multitoric.
reviewed by: Jan Stevens
description: scientific article; zbMATH DE number 6647109