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Related papers: Neostability transfers in derivation-like theories

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We build a bridge from density combinatorics to dimension theory of continued fractions. We establish a fractal transference principle that transfers common properties of subsets of $\mathbb N$ with positive upper density to properties of…

Number Theory · Mathematics 2025-10-28 Yuto Nakajima , Hiroki Takahasi

We begin a systematic development of structure theory for a first order theory, which is stable over a monadic predicate. We show that stability over a predicate implies quantifier free definability of types over stable sets, introduce an…

Logic · Mathematics 2023-02-17 Saharon Shelah , Alexander Usvyatsov

We study the model theory of expansions of Hilbert spaces by generic predicates. We first prove the existence of model companions for generic expansions of Hilbert spaces in the form first of a distance function to a random substructure,…

Logic · Mathematics 2017-03-22 Alexander Berenstein , Tapani Hyttinen , Andrés Villaveces

In this work, we investigate an intriguing and prevalent phenomenon of diffusion models which we term as "consistent model reproducibility": given the same starting noise input and a deterministic sampler, different diffusion models often…

Machine Learning · Computer Science 2024-06-11 Huijie Zhang , Jinfan Zhou , Yifu Lu , Minzhe Guo , Peng Wang , Liyue Shen , Qing Qu

Semi-classically equivalent field theories are related by a quasi-isomorphism between their underlying $L_\infty$-algebras, but such a quasi-isomorphism is not necessarily a homotopy transfer. We demonstrate that all quasi-isomorphisms can…

High Energy Physics - Theory · Physics 2026-01-13 Mehran Jalali Farahani , Christian Saemann , Martin Wolf

We prove some results about the model theory of fields with a derivation of the Frobenius map, especially that the model companion of this theory is axiomatizable by axioms used by Wood in the case of the theory $\operatorname{DCF}_p$ and…

Logic · Mathematics 2021-05-14 Jakub Gogolok

We show that the theories of some (ordered) central simple algebras with involution over real closed fields are model-complete or admit quantifier elimination, and characterize positive cones in terms of morphisms into models of some of…

Logic · Mathematics 2025-03-06 Vincent Astier

A relevant thesis is that for the family of complete first order theories with NIP (i.e. without the independence property) there is a substantial theory, like the family of stable (and the family of simple) first order theories. We examine…

Logic · Mathematics 2007-05-23 Saharon Shelah

In this paper we prove a strong nonstructure theorem for kappa (T)-saturated models of a stable theory T with dop.

Logic · Mathematics 2009-09-25 Tapani Hyttinen , Saharon Shelah

A definable type of a first-order theory is the same as a section (retraction) of the simplicial path space (decalage) of its space of types viewed as a simplicial topological space; as is well-known, in the category of simplicial sets such…

Category Theory · Mathematics 2023-03-31 Misha Gavrilovich

We introduce and develop the theory of metaparticles. At the classical level, this is a world-line theory with the usual reparameterization invariance and two additional features. The theory is motivated by string theory on compact targets,…

High Energy Physics - Theory · Physics 2019-04-03 Laurent Freidel , Jerzy Kowalski-Glikman , Robert G. Leigh , Djordje Minic

The widespread adoption of transfer learning has revolutionized machine learning by enabling efficient adaptation of pre-trained models to new domains. However, the reliability of these adaptations remains poorly understood, particularly…

Machine Learning · Computer Science 2025-09-01 Prabhav Singh , Jessica Sorrell

We show that for tame valued fields of equal characteristic with divisible value group, the $C_i$ property lifts from the residue field to the valued field under suitable hypotheses on the residue field. We apply this transfer principle to…

Number Theory · Mathematics 2026-03-31 Felipe Gambardella , Konstantinos Kartas

A theory $T$ is said to be relatively decidable if for every model of $T$, one can compute the elementary diagram of that model from its atomic diagram together with $T$. We verify a conjecture of Chubb, Miller, and Solomon by showing that…

Logic · Mathematics 2026-04-21 Matthew Harrison-Trainor , Liam Tan

Classically, any structure for a signature $\Sigma$ may be completed to a model of a desired regular theory $T$ by means of the chase construction or small object argument. Moreover, this exhibits $\mathrm{Mod}(T)$ as weakly reflective in…

Logic · Mathematics 2026-04-14 Henrik Forssell , Peter LeFanu Lumsdaine

For oscillatory functions on local fields coming from motivic exponential functions, we show that integrability over $Q_p^n$ implies integrability over $F_p ((t))^n$ for large $p$, and vice versa. More generally, the integrability only…

Algebraic Geometry · Mathematics 2015-01-14 Raf Cluckers , Julia Gordon , Immanuel Halupczok

We present a class of one-to-one matching models with perfectly transferable utility. We discuss identification and inference in these separable models, and we show how their comparative statics are readily analyzed.

Econometrics · Economics 2021-02-05 Alfred Galichon , Bernard Salanié

In the framework of certain general probability theories of single systems, we identify various nonclassical features such as incompatibility, multiple pure-state decomposability, measurement disturbance, no-cloning and the impossibility of…

Quantum Physics · Physics 2022-06-10 S. Aravinda , R. Srikanth , Anirban Pathak

Let $T$ be a consistent o-minimal theory extending the theory of densely ordered groups and let $T'$ be a consistent theory. Then there is a complete theory $T^*$ extending $T$ such that $T$ is an open core of $T^*$, but every model of…

Logic · Mathematics 2017-10-10 Philipp Hieronymi , Travis Nell , Erik Walsberg

We prove that if T is a theory of large, bounded, fields of characteristic zero, with almost quantifier elimination, and T_D is the model companion of T + "D is a derivation", then for any model U of T_D, and differential subfield K of U…

Algebraic Geometry · Mathematics 2017-09-04 Quentin Brouette , Greg Cousins , Anand Pillay , Francoise Point
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