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This paper is mostly a survey of recent work on sequences of locally symmetric spaces whose Riemannian volume goes to infinity. We also work out some applications to random surfaces.

Geometric Topology · Mathematics 2014-11-05 Ian Biringer , Jean Raimbault

This paper deals with a family of spatial rational curves that were introduced by Andradas, Recio and Sendra, under the name of hypercircles, as an algorithmic cornerstone tool in the context of improving the rational parametrization…

Algebraic Geometry · Mathematics 2014-01-27 Tomas Recio , J. Rafael Sendra , Luis Felipe Tabera , Carlos Villarino

For the example of the logarithmic triplet theory at c=-2 the chiral vacuum torus amplitudes are analysed. It is found that the space of these torus amplitudes is spanned by the characters of the irreducible representations, as well as a…

High Energy Physics - Theory · Physics 2007-05-23 Michael Flohr , Matthias R. Gaberdiel

In a projective plane over a finite field, complete $(k,n)$-arcs with few characters are rare but interesting objects with several applications to finite geometry and coding theory. Since almost all known examples are large, the…

Combinatorics · Mathematics 2023-02-21 Gábor Korchmáros , Gábor Péter Nagy , Tamás Szőnyi

A conjecture of Freiman gives an exact formula for the largest volume of a finite set $A$ of integers with given cardinality $k = |A|$ and doubling $T = |2A|$. The formula is known to hold when $T \le 3k-4$, for some small range over $3k-4$…

Number Theory · Mathematics 2018-08-28 Gregory A. Freiman , Oriol Serra , Christoph Spiegel

Given a many-body system, we define a quantity, the Codification Volume of an operator algebra, which measures the size of the subspace with whom a given algebra is correlated. We explicitly calculate it for some limit cases, including…

Quantum Physics · Physics 2014-10-24 Javier M. Magan , Simone Paganelli

We obtain sharp volume bound for a conic 2-sphere in terms of its Gaussian curvature bound. We also give the geometric models realizing the extremal volume. In particular, when the curvature is bounded in absolute value by $1$, we compute…

Differential Geometry · Mathematics 2016-04-12 Hao Fang , Mijia Lai

We describe complete simplicial toric varieties on which a unipotent group acts with a finite number of orbits. We also provide a complete list of such varieties in the case where the dimension is equal to 2.

Algebraic Geometry · Mathematics 2025-08-05 Anton Shafarevich

In this article we prove a conjecture of Bezdek, Brass, and Harborth concerning the maximum volume of the convex hull of any facet-to-facet connected system of n unit hypercubes in the d-dimensional Euclidean space. For d=2 we enumerate the…

Combinatorics · Mathematics 2007-05-23 Sascha Kurz

This is a survey of topological properties of open, complete nonpositively curved manifolds which may have infinite volume. Topics include topology of ends, restrictions on the fundamental group, as well as a review of known examples.

Differential Geometry · Mathematics 2014-08-05 Igor Belegradek

We show that Jacobian algebras arising from a sphere with $n$-punctures, with $n\geq5$, are finite dimensional algebras. We consider also a family of cyclically oriented quivers and we prove that, for any primitive potential, the associated…

Representation Theory · Mathematics 2015-05-06 Sonia Trepode , Yadira Valdivieso-Diaz

We prove that if a subset of the d-dimensional vector space over a finite field is large enough, then it contains many k-tuples of mutually orthogonal vectors.

Combinatorics · Mathematics 2008-07-04 Alex Iosevich , Steve Senger

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

We prove that if f is a self-map of an algebraic variety over a field K, then under certain conditions on X, f and K the set of possible periods of K-valued periodic points of f is finite.

Number Theory · Mathematics 2007-05-23 Najmuddin Fakhruddin

We present combinatorial upper bounds on dimensions of certain imaginary root spaces for symmetric Kac-Moody algebras. These come from the realization of the corresponding infinity-crystal using quiver varieties. The framework is general,…

Representation Theory · Mathematics 2021-02-24 Peter Tingley

We present bounds for the geometric degree of the tangent bundle and the tangential variety of a smooth affine algebraic variety $V$ in terms of the geometric degree of $V$. We first analyze the case of curves, showing an explicit relation…

Algebraic Geometry · Mathematics 2024-03-19 Gabriela Jeronimo , Leonardo Lanciano , Pablo Solernó

Let $R$ be a strictly local ring complete for a discrete valuation, with fraction field $K$ and residue field of characteristic $p > 0$. Let $X$ be a smooth, proper variety over $K$. Nicaise conjectured that the rational volume of $X$ is…

Algebraic Geometry · Mathematics 2017-02-01 Arne Smeets

We compute the volume of the body enclosed by the $n$-dimensional Lam\'e curve defined by $\sum_{i=1}^nx_i^b= E$.

Statistical Mechanics · Physics 2009-12-04 Raul Toral

We have derived an analytical formulation for estimating the volume of geometries enclosed by implicitly defined surfaces. The novelty of this work is due to two aspects. First we provide a general analytical formulation for all…

Numerical Analysis · Mathematics 2019-05-01 Shucheng Pan , Xiangyu Hu , Nikolaus. A. Adams

Let $V$ be a subvariety of codimension $\leq g$ of the moduli space $\cA_g$ of principally polarized abelian varieties of dimension $g$ or of the moduli space $\tM_g$ of curves of compact type of genus $g$. We prove that the set $E_1(V)$ of…

alg-geom · Mathematics 2008-02-03 E. Izadi
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