On three-dimensional Reeb flows: implied existence of periodic orbits and a dynami...
Determinantal varieties, Euler obstruction, and Whitney equisingularity
| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Sao Paulo, Inst Ciencias Matemat & Comp, Sao Carlos, SP - Brazil
[2] Aix Marseille Univ, Inst Math Luminy, Marseille - France
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | Geometriae Dedicata; v. 175, n. 1, p. 373-383, APR 2015. |
| Web of Science Citations: | 2 |
| Abstract | |
In this paper we study surfaces with the property that their irreducible components are toric surfaces. In particular, we present a formula to compute the Euler obstruction of such surfaces. As an application of this formula we compute the Euler obstruction for some families of determinantal surfaces. In the last section, we make some remarks about Milnor number and toric surfaces in C-3 and C-4. (AU) | |
| FAPESP's process: | 13/11258-9 - Topological study on singular varieties and applications on smooth manifolds |
| Grantee: | Nivaldo de Góes Grulha Júnior |
| Support Opportunities: | Regular Research Grants |