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Related papers: Uniformly defining $p$-henselian valuations

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We study groups and rings definable in d-minimal expansions of ordered fields. We generalize to such objects some known results from o-minimality. In particular, we prove that we can endow a definable group with a definable topology making…

Logic · Mathematics 2021-07-12 Antongiulio Fornasiero

We generalize Deligne's equivalence between the categories of regular-singular connections on the formal punctured disk and on the punctured affine line to the case where the base is a strictly Henselian discrete valuation ring of equal…

Algebraic Geometry · Mathematics 2024-04-19 Phùng Hô Hai , João Pedro dos Santos , Pham Thanh Tâm , Đào Văn Thinh

We investigate the rings in which the set of nonzero elements is positive-existential (i.e. a finite union of projections of "algebraic" sets). In the case of Noetherian domains, we prove in particular that this condition is satisfied…

Commutative Algebra · Mathematics 2011-11-10 Laurent Moret-Bailly

As a convention, p-value is often computed in frequentist hypothesis testing and compared with the nominal significance level of 0.05 to determine whether or not to reject the null hypothesis. The smaller the p-value, the more significant…

Methodology · Statistics 2020-02-25 Haolun Shi , Guosheng Yin

Non-commutative Henselian rings are defined and it is shown that a local ring which is complete and separated in the topology defined by its maximal ideal is Henselian provided that it is almost commutative.

Rings and Algebras · Mathematics 2010-02-10 Masood Aryapoor

The main aim of this article is to study and develop valuation theory for Krasner hyperfields. In analogy with classical valuation theory for fields, we generalise the formalism of valuation rings to describe equivalence of valuations on…

Commutative Algebra · Mathematics 2023-01-23 Alessandro Linzi

We introduce a new notion of tame geometry for structures admitting an abstract notion of balls. The notion is named b-minimality and is based on definable families of points and balls. We develop a dimension theory and prove a cell…

Logic · Mathematics 2011-02-25 R. Cluckers , F. Loeser

We prove generic differentiability in $P$-minimal theories, strengthening an earlier result of Kuijpers and Leenknegt. Using this, we prove Onshuus and Pillay's $P$-minimal analogue of Pillay's conjectures on o-minimal groups. Specifically,…

Logic · Mathematics 2026-03-16 Will Johnson

We consider interpretable topological spaces and topological groups in a $p$-adically closed field $K$. We identify a special class of "admissible topologies" with topological tameness properties like generic continuity, similar to the…

Logic · Mathematics 2022-08-23 Will Johnson

We show that a valuation ring containing its residue field of characteristic $p>0$ is a filtered direct limit of complete intersection ${\bf F}_p$-algebras.

Commutative Algebra · Mathematics 2026-02-24 Dorin Popescu

Let (K, v) be a henselian valued field of arbitrary rank. In this paper, we give an irreducibility criterion for multivariate polynomials over K using valuation theory.

Commutative Algebra · Mathematics 2016-12-07 Anuj Jakhar

Let $T$ be a theory which is t-minimal, meaning that with respect to some definable topology, a unary definable set $D \subseteq M$ has non-empty interior iff it is infinite. If $K$ is a definable field in $T$, then $K$ is finite or "large"…

Logic · Mathematics 2026-05-11 Will Johnson

We give a constructive proof that $R[X]$ is normal when $R$ is normal. We apply this result to an operation needed for studying the henselization of a local ring. Our proof is based on the case where $R$ is without zero divisors, which is…

Commutative Algebra · Mathematics 2022-11-01 Henri Lombardi , Thierry Coquand

We discuss $p$-variation regularity of real-valued functions defined on $[0,T]^2$, based on rectangular increments. When $p>1$, there are two slightly different notions of $p$-variation; both of which are useful in the context of Gaussian…

Probability · Mathematics 2011-02-23 Peter Friz , Nicolas Victoir

We discuss the role of additive polynomials and $p$-polynomials in the theory of valued fields of positive characteristic and in their model theory. We outline the basic properties of rings of additive polynomials and discuss properties of…

Commutative Algebra · Mathematics 2010-03-31 Franz-Viktor Kuhlmann

We revisit a classical theme of (general or translation invariant) valuations on convex polyhedra. Our setting generalizes the classical one, in a ``dual'' direction to previously considered generalizations: while previous research was…

Combinatorics · Mathematics 2026-01-07 Askold Khovanskii , Valentina Kiritchenko , Vladlen Timorin

This paper gives an elementary proof of a theorem by de Felipe and Teissier in the paper "Valuations and henselization" (arXiv:1903.10793v1), to appear in Math. Annalen. The theorem compares two henselizations of a local domain dominated by…

Commutative Algebra · Mathematics 2020-05-04 Maria-Emilia Alonso , Henri Lombardi , Stefan Neuwirth

We prove a negative solution to the analogue of Hilbert's tenth problem for rings of one variable non-Archimedean entire functions in any characteristic. In the positive characteristic case we prove more: the ring of rational integers is…

Number Theory · Mathematics 2014-11-27 Natalia Garcia-Fritz , Hector Pasten

I analyze $\mathcal{O}$-weakly immediate and $\mathcal{O}$-residual types in an o-minimal expansion of an ordered field $\mathbb{E}$, where $\mathcal{O}$ is a convex valuation ring. The main result is a characterization of those exponential…

Logic · Mathematics 2025-11-18 Pietro Freni

We compute the Galois cohomology of any $p$-adic valuation field extension of a pre-perfectoid field. Moreover, we obtain a generalization and also a new proof of the classical results of Tate and Hyodo on discrete valuation fields, without…

Algebraic Geometry · Mathematics 2025-02-21 Tongmu He