T
+34 946 567 842
F
+34 946 567 843
E
anemethi@bcamath.org
Information of interest
- Orcid: 0000-0003-4115-9643
-
The Abel map for surface singularities I. Generalities and examples
Némethi, A.
; Nagy, J. (2019)
Abstract. Let (X, o) be a complex normal surface singularity. We fix one of its good resolutions X → X, an effective cycle Z supported on the reduced exceptional curve, and any possible (first Chern) class l′ ∈ H 2 (X , ...
-
The abel map for surface singularities II. Generic analytic structure
Nagy, J.; Némethi, A. (2019)
We study the analytic and topological invariants associated with complex normal surface singularities. Our goal is to provide topological formulae for several discrete analytic invariants whenever the analytic structure ...
-
The Abel map for surface singularities III: Elliptic germs
Nagy, J.; Némethi, A. (2021-01-01)
The present note is part of a series of articles targeting the theory of Abel maps associated with complex normal surface singularities with rational homology sphere links (Nagy and Némethi in Math Annal 375(3):1427–1487, ...
-
Combinatorial duality for Poincaré series, polytopes and invariants of plumbed 3-manifolds
László, T.; Nagy, J.; Némethi, A. (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 ...
-
Delta invariant of curves on rational surfaces I. An analytic approach
Cogolludo-Agustín, J.I.; László, T.; Martín-Morales, J.; Némethi, A. (2021-01-01)
We prove that if (C, 0) is a reduced curve germ on a rational surface singularity (X, 0) then its delta invariant can be recovered by a concrete expression associated with the embedded topological type of the pair C X. ...
-
On the geometry of strongly flat semigroups and their generalizations
László, T.; Némethi, A. (2018-09-18)
Our goal is to convince the readers that the theory of complex normal surface singularities can be a powerful tool in the study of numerical semigroups, and, in the same time, a very rich source of interesting affine and ...
-
Surgery formulae for the Seiberg-Witten invariant of plumbed 3-manifolds
László, T.; Nagy, J.; Némethi, A. (2017-02)
Assume that $M(\mathcal{T})$ is a rational homology sphere plumbed 3--manifold associated with a connected negative definite graph $\mathcal{T}$. We consider the combinatorial multivariable Poincar\'e series associated ...