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In this paper, we define quantum toric varieties associated to an arbitrary fan in a finitely generated subgroup of some $\mathbb{R}^d$ generalizing the article arXiv:2002.03876 of Katzarkov, Lupercio, Meersseman and Verjovsky.

Symplectic Geometry · Mathematics 2025-03-31 Antoine Boivin

We consider a class of stochastic evolution equations that include in particular the stochastic Camassa--Holm equation. For the initial value problem on a torus, we first establish the local existence and uniqueness of pathwise solutions in…

Analysis of PDEs · Mathematics 2020-10-14 Christian Rohde , Hao Tang

Horospherical Schubert varieties are determined. It is shown that the stabilizer of an arbitrary point in a Schubert variety is a strongly solvable algebraic group. The connectedness of this stabilizer subgroup is discussed. Moreover, a new…

Algebraic Geometry · Mathematics 2024-09-10 Mahir Bilen Can , S. Senthamarai Kannan , Pinakinath Saha

We show that the height of a variety over a finitely generated field of characteristic zero can be written as an integral of local heights over the set of places of the field. This allows us to apply our previous work on toric varieties and…

Number Theory · Mathematics 2016-03-16 Jose Ignacio Burgos Gil , Patrice Philippon , Martin Sombra

We present an explicit expression for the normalized height of a projective toric variety. This expression decomposes as a sum of local contributions, each term being the integral of a certain function, concave and piecewise linear-affine.…

Number Theory · Mathematics 2007-05-23 Patrice Philippon , Martin Sombra

We prove a large deviations principle for the solution to the beating NLS equation on the torus with random initial data supported on two Fourier modes. When these modes have different initial variance, we prove that the resonant energy…

Analysis of PDEs · Mathematics 2024-08-13 Ricardo Grande

We provide a treatment of isomorphism within a set-theoretic formulation of dependent type theory. Type expressions are assigned their natural set-theoretic compositional meaning. Types are divided into small and large types --- sets and…

Logic in Computer Science · Computer Science 2018-01-23 David McAllester

According to classical GR, negative-energy (AdS) bubbles in the multiverse terminate in big crunch singularities. It has been conjectured, however, that the fundamental theory may resolve these singularities and replace them by non-singular…

High Energy Physics - Theory · Physics 2015-06-17 Jaume Garriga , Alexander Vilenkin , Jun Zhang

Blow-ups of derivatives and gradient catastrophes for the $n$-dimensional homogeneous Euler equation are discussed. It is shown that, in the case of generic initial data, the blow-ups exhibit a fine structure in accordance of the admissible…

Exactly Solvable and Integrable Systems · Physics 2022-10-11 B. G. Konopelchenko , G. Ortenzi

This paper shows the affirmative answer to the local Nash problem for a toric singularity and analytically pretoric singularity. As a corollary we obtain the affirmative answer to the local Nash problem for a quasi-ordinary singularity.

Algebraic Geometry · Mathematics 2007-05-23 Shihoko Ishii

We define dilatations of general schemes and study their basic properties. Dilatations of group schemes are -- in favorable cases -- again group schemes, called N\'eron blowups. We give two applications to their cohomology in degree zero…

Algebraic Geometry · Mathematics 2020-03-16 Arnaud Mayeux , Timo Richarz , Matthieu Romagny

We consider a sequence of blowup solutions of a two dimensional, second order elliptic equation with exponential nonlinearity and singular data. This equation has a rich background in physics and geometry. In a work of…

Analysis of PDEs · Mathematics 2008-10-30 Lei Zhang

We explicitly construct the smooth toric Fano variety which is isomorphic to the blow-up of the projective space at torus invariant points in codimension one by anti-flips.

Algebraic Geometry · Mathematics 2023-05-17 Hiroshi Sato , Shigehito Tsuzuki

The paper surveys several results on the topology of the space of arcs of an algebraic variety and the Nash problem on the arc structure of singularities.

Algebraic Geometry · Mathematics 2017-01-13 Tommaso de Fernex

Does three-dimensional incompressible Euler flow with smooth initial conditions develop a singularity with infinite vorticity after a finite time? This blowup problem is still open. After briefly reviewing what is known and pointing out…

Chaotic Dynamics · Physics 2007-05-23 U. Frisch , T. Matsumoto , J. Bec

A class of equations with exponential nonlinearities on a compact Riemannian surface is considered. More precisely, we study an asymmetric sinh-Gordon problem arising as a mean field equation of the equilibrium turbulence of vortices with…

Analysis of PDEs · Mathematics 2017-04-28 Aleks Jevnikar

We consider the problem to determine which blow-ups along subvarieties in products of two projective spaces are log Fano. By describing the nef cones of such blow-ups with special centers, we give a partial classification result. For each…

Algebraic Geometry · Mathematics 2018-09-25 Toru Tsukioka

Our main result is the following: let X be a normal affine toric surface without torus factor. Then there exists a non-normal affine toric surface X' with automorphism group isomorphic to the automorphism group of X if and only if X is…

Algebraic Geometry · Mathematics 2023-09-04 Roberto Díaz , Alvaro Liendo

We begin a systematic investigation of derived categories of smooth projective toric varieties defined over an arbitrary base field. We show that, in many cases, toric varieties admit full exceptional collections. Examples include all toric…

Algebraic Geometry · Mathematics 2019-08-14 Matthew R. Ballard , Alexander Duncan , Patrick K. McFaddin

We study the universal cover of the complex one-dimensional torus as a model-theoretic structure in a natural language. We consider also abstract covers of one-dimensional tori over algebraically closed fields of characteristic zero. The…

Commutative Algebra · Mathematics 2007-05-23 B. Zilber
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