New invariants of singularities in terms of higher Nash blow-up local algebras

  • Shuanghe Fan
  • , Naveed Hussain
  • , Stephen S.T. Yau*
  • , Huaiqing Zuo
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Let (V,0) be an isolated hypersurface singularity. In our previous work, we introduced a series of new local algebras called higher Nash blow-up local algebras associated with (V,0). Thus many new invariants were introduced from these local algebras of (V,0). We conjectured that singularities can be distinguished by a finite subset of these invariants. Furthermore, we proposed a generalized Halperin Conjecture. In this paper, we determine these invariants for simple curve singularities. As a result, we verify our conjecture for simple curve singularities. In the proof, we concretely compute the new invariants of simple curve singularities. Moreover, we verify the generalized Halperin Conjecture in some new cases.

Original languageEnglish
Article number105592
JournalJournal of Geometry and Physics
Volume216
DOIs
StatePublished - Oct 2025

Bibliographical note

Publisher Copyright:
© 2025 Elsevier B.V.

Keywords

  • Local algebra
  • Nash blow-up
  • Simple singularity

ASJC Scopus subject areas

  • Mathematical Physics
  • General Physics and Astronomy
  • Geometry and Topology

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