2006
DOI: 10.24033/bsmf.2514
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A class of non-rational surface singularities with bijective Nash map

Abstract: Abstract. -Let (S, 0) be a germ of complex analytic normal surface. On its minimal resolution, we consider the reduced exceptional divisor E and its irreducible components E i , i ∈ I. The Nash map associates to each irreducible component C k of the space of arcs through 0 on S the unique component of E cut by the strict transform of the generic arc in C k . Nash proved its injectivity and asked if it was bijective. As a particular case of our main theorem, we prove that this is the case if E · E i < 0 for any… Show more

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Cited by 27 publications
(22 citation statements)
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“…On the other hand, bijectivity of the Nash mapping has been shown for many classes of surfaces (see [6], [10], [8], [9], [12], [13], [17], [19], [20], [21], [22], [24], [25], [26]). The techniques leading to the proof of each of these cases are different in nature, and the proofs are often complicated.…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, bijectivity of the Nash mapping has been shown for many classes of surfaces (see [6], [10], [8], [9], [12], [13], [17], [19], [20], [21], [22], [24], [25], [26]). The techniques leading to the proof of each of these cases are different in nature, and the proofs are often complicated.…”
Section: Introductionmentioning
confidence: 99%
“…Étant donné explicitement une variété V et une désingularisation π, on remarque que déterminer si une composante irréductible de la fibre exceptionnelle de π est ou non un diviseur essentiel reste un problème difficile. L'approche de Nash est donc très De nombreux mathématiciens, qu'on ne peut pas tous citer ici, ont apporté de nouvelles contributions originales à l'étude du problème de Nash, surtout dans le cas de variétés de dimension 2 et 3 (voir par exemple [LJ80], [Reg95], [GSLJ97], [LJRL99], [IK03], [Ish05], [Ish06], [PPP06], [GP07], [Mor08], [Plé08], [PPP08], [Pet09], [LA11], [FdB12], [PS12], [dFD14]). …”
Section: Introductionunclassified
“…Recently the author was announced that the affirmative answer is proved for a D n -singularity on a surface by Camille Plenat. Camille Plenat and Popescu-Pampu [15] proved the affirmative answer to certain non-rational singularities with combinatorial conditions. The Nash problem is affirmatively answered also for a toric variety of arbitrary dimension in [8].…”
Section: 5mentioning
confidence: 99%
“…In case of a 2-dimensional normal (therefore isolated) singularity, the problem is studied in [9], [15], [17]. The Nash problem for general dimension is studied in [7], [8].…”
Section: Introductionmentioning
confidence: 99%