Triangulation-dependent conjecture for the Łojasiewicz exponent

Let fC{z0,z1,,zn}f\in\mathbb{C}\{z_0,z_1,\ldots,z_n\} be Newton nondegenerate and define an isolated singularity, and let T\mathcal{T} be a triangulation of its Newton diagram Γ(f)\Gamma(f). Let FneT\mathcal{F}_{\mathrm{ne}}^{\mathcal{T}} denote the subset of coordinate facets selected by the triangulation-dependent nonexceptionality condition, and let M(F)\mathcal{M}(F) be the maximal axial number of a coordinate facet FF.

Triangulation-dependent Łojasiewicz conjecture. Then

L(f,0)=maxFFneTM(F)1,\mathop{\mathcal{L}}(f,0)=\max_{F\in\mathcal{F}_{\mathrm{ne}}^{\mathcal{T}}}\mathcal{M}(F)-1,

with the possible exception of a Morse point in an even number of variables.

This conjecture is proposed as a replacement for the refuted Brzostowski–Krasiński–Oleksik conjecture and is motivated by local hh-polynomials and a formula for the Newton number. The source does not provide evidence resolving it.

Sources & referencesView supporting material

Primary source

Baldur Sigurðsson, “On the Jacobian polygon and Łojasiewicz exponent of isolated complex hypersurface singularities”, arXiv:2509.06150 (2025).

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