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What should researchers do when their baseline model is refuted? We provide four constructive answers. First, researchers can measure the extent of falsification. To do this, we consider continuous relaxations of the baseline assumptions of…

Econometrics · Economics 2020-01-07 Matthew A. Masten , Alexandre Poirier

The intersection of deep learning and symbolic mathematics has seen rapid progress in recent years, exemplified by the work of Lample and Charton. They demonstrated that effective training of machine learning models for solving mathematical…

Machine Learning · Computer Science 2025-04-18 Yuta Kambe , Yota Maeda , Tristan Vaccon

We develop the foundations of the deformation theory of compact complete affine space forms and affine crystallographic groups. Using methods from the theory of linear algebraic groups we show that these deformation spaces inherit an…

Differential Geometry · Mathematics 2008-09-05 Oliver Baues

We develop an analogue of the deformation to the normal cone in the context of derived algebraic geometry. This provides any given morphism of derived stacks with a degeneration to the zero section of its normal bundle (i.e., its 1-shifted…

Algebraic Geometry · Mathematics 2025-11-25 Jeroen Hekking , Adeel A. Khan , David Rydh

We give the generating function for the index of integer lattice points, relative to a finite order ideal. The index is an important concept in the theory of border bases, an alternative to Gr\"obner bases. Equivalently, we explicitly solve…

Combinatorics · Mathematics 2025-03-04 Jan Snellman

The homogeneous Yang-Baxter deformation is part of a larger web of integrable deformations and dualities that recently have been studied with motivations in integrable $\sigma$-models, solution-generating techniques in supergravity and…

High Energy Physics - Theory · Physics 2022-06-24 Riccardo Borsato , Sibylle Driezen , J. Luis Miramontes

Parametric Gr\"obner bases have been studied for more than 15 years and are now a further developed subject. Here we propose a general study of parametric standard bases, that is with local orders. We mainly focus on the commutative case…

Commutative Algebra · Mathematics 2007-05-23 Rouchdi Bahloul

Deformational structures, in many aspects generalizing standard elasticity theory, are investigated in abstract form. Within free deformational structures we define algebra of deformations, classify them by its special properties, define…

Mathematical Physics · Physics 2008-10-30 Sergey S. Kokarev

The deformation theory of curves is studied by using the canonical ideal. The problem of lifting curves with automorphisms is reduced to a lifting problem of linear representations.

Algebraic Geometry · Mathematics 2025-05-23 Aristides Kontogeorgis , Alexios Terezakis

One of the main contributions which Volker Weispfenning made to mathematics is related to Groebner bases theory. In this paper we present an algorithm for computing all algebraic intermediate subfields in a separably generated unirational…

Symbolic Computation · Computer Science 2008-05-15 Jaime Gutierrez , David Sevilla

We will introduce formal frames of manifolds, which are a generalization of ordinary frames. Their fundamental properties are discussed. In particular, canonical forms are introduced, and torsions are defined in terms of them as a…

Differential Geometry · Mathematics 2023-03-15 Taro Asuke

The aim of this paper is to provide an explicit basis of the miniversal deformation of a monomial curve defined by a free semigroup -- these curves make up a notable family of complete intersection monomial curves. First, we dispense a…

Algebraic Geometry · Mathematics 2024-07-08 Patricio Almirón , Julio José Moyano-Fernández

The universal Gr\"obner basis of an ideal is a Gr\"obner basis with respect to all term orders simultaneously. The aim of this paper is to present an algorithmic approach to compute the universal Gr\"obner basis for the toric ideal…

Commutative Algebra · Mathematics 2019-04-23 Yannis C. Stamatiou , Christos Tatakis

We relate a classic algebro-geometric degeneration technique, dating at least to [Hodge 1941], to the notion of vertex decompositions of simplicial complexes. The good case is when the degeneration is reduced, and we call this a "geometric…

Algebraic Geometry · Mathematics 2010-02-17 Allen Knutson , Ezra Miller , Alexander Yong

Solving multihomogeneous systems, as a wide range of structured algebraic systems occurring frequently in practical problems, is of first importance. Experimentally, solving these systems with Gr\"obner bases algorithms seems to be easier…

Symbolic Computation · Computer Science 2010-02-24 Jean-Charles Faugère , Mohab Safey El Din , Pierre-Jean Spaenlehauer

We introduce the theory of monoidal Groebner bases, a concept which generalizes the familiar notion in a polynomial ring and allows for a description of Groebner bases of ideals that are stable under the action of a monoid. The main…

Commutative Algebra · Mathematics 2011-08-25 Christopher J. Hillar , Seth Sullivant

A total set of states for which we have no resolution of the identity (a `pre-basis'), is considered in a finite dimensional Hilbert space. A dressing formalism renormalizes them into density matrices which resolve the identity, and makes…

Mathematical Physics · Physics 2017-08-30 A. Vourdas

We construct an explicit minimal strong Groebner basis of the ideal of vanishing polynomials in the polynomial ring over Z/m for m>=2. The proof is done in a purely combinatorial way. It is a remarkable fact that the constructed Groebner…

Commutative Algebra · Mathematics 2011-05-18 G. -M. Greuel , F. Seelisch , O. Wienand

A problem concerning the shift of roots of a system of homogeneous algebraic equations is investigated. Its conservation and decomposition of a multiple root into simple roots are discussed.

Numerical Analysis · Mathematics 2025-10-20 S. Tanabe , M. N. Vrahatis

This paper studies the concept and the computation of approximately vanishing ideals of a finite set of data points. By data points, we mean that the points contain some uncertainty, which is a key motivation for the approximate treatment.…

Symbolic Computation · Computer Science 2025-06-12 Hiroshi Kera , Achim Kehrein