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Related papers: Jordan bounds for volume-preserving Cremona groups

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We give a rigorous proof of Conjecture 3.1 by Prosen [Prosen T 2010 J. Stat. Mech. $\textbf{2010}$ P07020] on the nilpotent part of the Jordan decomposition of a quadratic fermionic Liouvillian. We also show that the number of the Jordan…

Quantum Physics · Physics 2024-05-27 Shunta Kitahama , Hironobu Yoshida , Ryo Toyota , Hosho Katsura

Let $X$ be a compact complex space in Fujiki's Class $C$. We show that the group $Aut(X)$ of all biholomorphic automorphisms of $X$ has the Jordan property: there is a (Jordan) constant $J = J(X)$ such that any finite subgroup $G\le Aut(X)$…

Algebraic Geometry · Mathematics 2023-07-06 Sheng Meng , Fabio Perroni , De-Qi Zhang

Let $V$ be a nonsingular projective 3-fold of general type. When the pluricanonical section index $\delta(V)>12$, Chen-Chen \cite{Chen3} has a complete list of the possibility for the weighted basket ${\mathbb B}(V)$. However the…

Algebraic Geometry · Mathematics 2014-07-31 Lingzi Hou

The plane Cremona group over the finite field $\mathbb{F}_2$ is generated by three infinite families and finitely many birational maps with small base orbits. One family preserves the pencil of lines through a point, the other two preserve…

Algebraic Geometry · Mathematics 2024-02-08 Julia Schneider

We investigate finite volume effects on the pion mass and the pion decay constant with renormalization group (RG) methods in the framework of a phenomenological model for QCD. An understanding of such effects is important in order to…

High Energy Physics - Phenomenology · Physics 2009-11-11 B. Klein , J. Braun , H. J. Pirner

For every prime $p$ and integer $n\ge 3$ we explicitly construct an abelian variety $A/\F_{p^n}$ of dimension $n$ such that for a suitable prime $l$ the group of quasi-isogenies of $A/\F_{p^n}$ of $l$-power degree is canonically a dense…

Algebraic Topology · Mathematics 2014-01-14 Niko Naumann

In this paper, we prove that for x\in(0,{\pi}/2) (cos p_0x)^{1/p_0}<((sin x)/x)<(cos(x/3))^3 with the best constants p_0=0.347307245464... and 1/3. Moreover, if p\in (0,1/3] then the double inequality {\beta}_{p}(cos px)^{1/p}<((sin…

Classical Analysis and ODEs · Mathematics 2012-06-26 Zhen-Hang Yang

We prove several results on the number of solutions to the asymptotic Plateau problem in $\mathbb H^3$. Firstly we discuss criteria that ensure uniqueness. Given a Jordan curve $\Lambda$ in the asymptotic boundary of $\mathbb H^3$, we show…

Differential Geometry · Mathematics 2024-09-19 Zheng Huang , Ben Lowe , Andrea Seppi

Let C be a real-analytic Jordan curve in $R^3$. Then C cannot bound infinitely many disk-type minimal surfaces which provide relative minima of area.

Differential Geometry · Mathematics 2015-05-25 Michael Beeson

We classify Jordan $G$-tori, where $G$ is any torsion-free abelian group. Using the Zelmanov prime structure theorem, such a class divides into three types, namely, {the Hermitian type, the Clifford type and the Albert type.} We concretely…

Quantum Algebra · Mathematics 2013-12-09 Saeid Azam , Yoji Yoshii , Malihe Yousofzadeh

We prove that for any self-affine dendrite K generated by a polygonal system, there are constants C>0 and $\lambda\in(0, 1)$ such that for any x, y in K, the Jordan arc $\gamma$ in K with endpoints x, y satisfies the inequality…

Metric Geometry · Mathematics 2026-05-06 Andrei Tetenov , Ivan Yudin , Dilmurat Kutlimuratov

A commutative loop is Jordan if it satisfies the identity $x^2 (y x) = (x^2 y) x$. Using an amalgam construction and its generalizations, we prove that a nonassociative Jordan loop of order $n$ exists if and only if $n\geq 6$ and $n\neq 9$.…

Group Theory · Mathematics 2011-08-19 Michael K. Kinyon , Kyle Pula , Petr Vojtechovsky

We prove that any d-dimensional zonotope obtained from permutahedron by deleting zone vectors has belt diameter at most 3. Moreover if d is not greater than 6 then its belt diameter is bounded from above by 2. Also we show that these bounds…

Combinatorics · Mathematics 2015-03-19 Alexey Garber

Given a filling primitive geodesic curve in a closed hyperbolic surface one obtains a hyperbolic three-manifold as the complement of the curve's canonical lift to the projective tangent bundle. In this paper we give the first known lower…

Geometric Topology · Mathematics 2022-03-01 Tommaso Cremaschi , Yannick Krifka , Dídac Martínez-Granado , Franco Vargas Pallete

In this paper, we provide a new criterion for the stable transitivity of volume preserving finite generated group on any compact Riemannian manifold. As one of our applications, we generalised a result of Dolgopyat and Krikorian in…

Dynamical Systems · Mathematics 2017-01-20 Zhiyuan Zhang

An example of the volume and boundary face area of a curved polyhedron for the case of regular spherical and hyperbolic tetrahedron is discussed. An exact formula is explicitly derived as a function of the scalar curvature and the edge…

General Physics · Physics 2018-04-17 Omar Nemoul , Noureddine Mebarki

We show that for a polynomial map, the size of the Jordan blocks for the eigenvalue 1 of the monodromy at infinity is bounded by the multiplicity of the reduced divisor at infinity of a good compactification of a general fiber. The…

Algebraic Geometry · Mathematics 2007-05-23 Alexandru Dimca , Morihiko Saito

Assuming a particular case of Borisov--Alexeev--Borisov conjecture, we prove that finite subgroups of the automorphism group of a finitely generated field over Q have bounded orders. Further, we investigate which algebraic varieties have…

Algebraic Geometry · Mathematics 2019-02-20 Yuri Prokhorov , Constantin Shramov

We put forward a definition for spectral triples and algebraic backgrounds based on Jordan coordinate algebras. We also propose natural and gauge-invariant bosonic configuration spaces of fluctuated Dirac operators and compute them for…

Mathematical Physics · Physics 2024-06-19 Fabien Besnard , Shane Farnsworth

\input amssym.def \input amssym.tex Let $G$ be a connected algebraic reductive group over an algebraic closure of a prime field ${\Bbb F}_p$, defined over ${\Bbb F}_q$ thanks to a Frobenius $F$. Let $\ell$ be a prime different from $p$. Let…

Group Theory · Mathematics 2013-12-03 Michel E. Enguehard