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Algebraic geometry· 2026Q1

Real enumerative invariants relative to the toric boundary and their refinement

Ilia Itenberg, Eugenii I. Shustin

Short summary

New real enumerative invariants for toric surfaces (including the projective plane) are introduced, based on counting real curves of genus 1 and 2.

AI-generated from the title and abstract; the full text is not read.

Key points

  • Introduced new real enumerative invariants for toric surfaces.
  • Invariants are based on enumerating real curves of genus 1 and 2.
  • These invariants can be refined, analogous to Mikhalkin's rational case refinement.

AI-generated from the title and abstract; the full text is not read.

Abstract

We introduce new invariants of a class of toric surfaces (including the projective plane) that arise from appropriate enumeration of real curves of genus 1 and 2. These invariants admit a refinement similar to the one introduced by Grigory Mikhalkin in the rational case.

The authors' abstract, as published at the source. Algebraic geometry, 2026 · DOI ↗

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Field: Geometry and Topology

Geometry and TopologyMathematics