Deformation to the associated graded algebra via an injective well-ordered valuation

Let AA be a domain equipped with an injective well-ordered valuation ν\nu, and let grAgr A denote the associated graded algebra of the filtration on AA induced by ν\nu. A family of algebras AtA_t is said to connect AA to grAgr A if it is defined for the relevant parameter values and satisfies the stated specializations. Valuation deformation conjecture. For every such pair (A,ν)(A,\nu), there is a family AtA_t such that

A1=A,A0=grA.A_1=A,\qquad A_0=gr A.

The preceding proposition establishes this construction for one-dimensional finitely generated algebras presented as k[x1,,xn]/J\Bbbk[x_1,\dots,x_n]/J under its stated hypotheses, suggesting the broader formulation for arbitrary domains with injective well-ordered valuations.

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Primary source

Arkady Berenstein and Dima Grigoriev, “Valuations, bijections, and bases”, arXiv:2405.00470 (2025).

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