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On Zariski’s multiplicity problem at infinity
(2018-08-14)
We address a metric version of Zariski's multiplicity conjecture at infinity that says that two complex algebraic affine sets which are bi-Lipschitz homeomorphic at infinity must have the same degree. More specifically, ...
Hölder equivalence of complex analytic curve singularities
(2018-08-06)
We prove that if two germs of irreducible complex analytic curves at $0\in\mathbb{C}^2$ have different sequence of characteristic exponents, then there exists $0<\alpha<1$ such that those germs are not $\alpha$-H\"older ...
Semialgebraic CMC surfaces in $\mathbb{R}^3$ with singularities
(2018-06-30)
In this paper we present a classification of a class of semialgebraic CMC surfaces in $\mathbb{R}^3$ that generalizes the recent classification made by Barbosa and do Carmo in 2016 (complete reference is in the paper), we ...
Singularities in Geometry and Topology
(2018-06-18)
This thesis consists of two different topics that are not related. The thesis has two different and independent parts that can be read in any order. The purpose of this work is to study two topics in singularity theory: ...
Combinatorial duality for Poincaré series, polytopes and invariants of plumbed 3-manifolds
(2018-06)
Assume that the link of a complex normal surface singularity is a rational homology sphere. Then its Seiberg-Witten invariant can be computed as the ‘periodic constant’ of the topological multivariable Poincaré series (zeta ...
Monodromies as tête-à-tête graphs
(2018-05-08)
A proof of the differentiable invariance of the multiplicity using spherical blowing-up
(2018-04-21)
In this paper we use some properties of spherical blowing-up to give an alternative and more geometric proof
of Gau-Lipman Theorem about the differentiable invariance of the multiplicity of complex analytic sets.
Moreover, ...
The Nash Problem from a Geometric and Topological Perspective
(2018-04-17)
We survey the proof of the Nash conjecture for surfaces and show how geometric and topological ideas developed in previous articles by the au- thors influenced it. Later we summarize the main ideas in the higher dimen- ...
Mixed tête-à-tête twists as monodromies associated with holomorphic function germs
(2018-04-01)
Tête-à-tête graphs were introduced by N. A’Campo in 2010 with the goal of
modeling the monodromy of isolated plane curves. Mixed tête-à-tête graphs provide a
generalization which define mixed tête-à-tête twists, which ...