Multitoric surfaces and Euler obstruction of a function

作者：Dalbelo T M^*; Pereira M S

来源：International Journal of Mathematics, 2016, 27(10): 1650084.

DOI：10.1142/S0129167X16500841

• Multitoric surfaces
• determinantal surfaces
• Euler obstruction of a function
• Brasselet number

In this work, we present a formula to compute the Euler obstruction of a function f : (X, 0) -> (C, 0) and its Brasselet number, where X is a multitoric surface. As an application of this formula, we compute the Euler obstruction of a function on some families of determinantal surfaces.

• 出版日期2016-9