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相关论文: Asymptotic dimension of planes and planar graphs

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We introduce the group-compact coarse structure on a Hausdorff topological group in the context of coarse structures on an abstract group which are compatible with the group operations. We develop asymptotic dimension theory for the…

几何拓扑 · 数学 2012-01-24 Andrew Nicas , David Rosenthal

In this paper, we define asymptotic dimension of fuzzy metric spaces in the sense of George and Veeramini. We prove that asymptotic dimension is an invariant in the coarse category of fuzzy metric spaces. We also show several consequences…

一般拓扑 · 数学 2024-04-16 Pawel Grzegrzolka

The nonsingular real plane algebraic curves of given degree $d$ are considered either up to isotopy or up to deformation. The asymptotic behavior of the number $I_d$ of isotopy classes and the number $D_d$ of deformation classes are…

代数几何 · 数学 2007-05-23 S. Yu. Orevkov , V. M. Kharlamov

We introduce the notion of asymptotic cohomology based on the bounded cohomology and define cohomological asymptotic dimension $\as_{\Z} X$ of metric spaces. We show that it agrees with the asymptotic dimension $\as X$ when the later is…

度量几何 · 数学 2007-05-23 A. N. Dranishnikov

We enumerate rooted 2-connected and 3-connected surface maps with respect to vertices and edges. We also derive the bivariate version of the large face-width result for random 3-connected maps. These results are then used to derive…

组合数学 · 数学 2010-03-16 E. A. Bender , Z. Gao

We construct a universal space for the class of proper metric spaces of bounded geometry and of given asymptotic dimension. As a consequence of this result, we establish coincidence of the asymptotic dimension with the asymptotic inductive…

几何拓扑 · 数学 2007-05-23 A. Dranishnikov , M. Zarichnyi

The purpose of this note is to characterize the asymptotic dimension $asdim(X)$ of metric spaces $X$ in terms similar to Property A of Yu: If $(X,d)$ is a metric space and $n\ge 0$, then the following conditions are equivalent: [a.]…

度量几何 · 数学 2019-11-18 M. Cencelj , J. Dydak , A. Vavpetic

Even though big mapping class groups are not countably generated, certain big mapping class groups can be generated by a coarsely bounded set and have a well defined quasi-isometry type. We show that the big mapping class group of a stable…

几何拓扑 · 数学 2021-10-08 Curtis Grant , Kasra Rafi , Yvon Verberne

A set of geometric graphs is {\em geometric-packable} if it can be asymptotically packed into every sequence of drawings of the complete graph $K_n$. For example, the set of geometric triangles is geometric-packable due to the existence of…

组合数学 · 数学 2022-12-06 Daniel W. Cranston , Jiaxi Nie , Jacques Verstraëte , Alexandra Wesolek

Motivated by spectral asymptotics for orbital integrals in a relative trace formula, we generalize a number of geometric properties of geodesics in the hyperbolic plane, to maximal flat submanifolds of symmetric spaces of non-compact type.

微分几何 · 数学 2022-06-16 Bart Michels

We show that the fundamental groups of smooth $4$-manifolds that admit geometric decompositions in the sense of Thurston have asymptotic dimension at most four, and equal to 4 when aspherical. We also show that closed $3$-manifold groups…

几何拓扑 · 数学 2025-09-10 H. Contreras Peruyero , P. Suárez-Serrato

In [14], it was shown that, if M is a 3-dimensional asymptotically harmonic with minimal horospheres, then M is flat. However, there is a gap in the proof of this paper. In this paper, we provide the correct proof of the result. Thus we…

微分几何 · 数学 2023-09-06 Jihun Kim , JeongHyeong Park , Hemangi Madhusudan Shah

For a 3-manifold M and a subsurface $X$ of the boundary of M with empty or incompressible boundary we use surgery to identify a graph whose vertices are disks with boundary in X and which is quasi-isometrically embedded in the curve graph…

几何拓扑 · 数学 2019-03-20 Ursula Hamenstaedt

We show that the asymptotic dimension of box spaces behaves (sub)additively with respect to extensions of groups. As a result, we obtain that for an elementary amenable group, the asymptotic dimension of any of its box spaces is bounded…

度量几何 · 数学 2015-08-21 Martin Finn-Sell , Jianchao Wu

It is shown that every 2-planar graph is quasiplanar, that is, if a simple graph admits a drawing in the plane such that every edge is crossed at most twice, then it also admits a drawing in which no three edges pairwise cross. We further…

计算几何 · 计算机科学 2019-09-05 Michael Hoffmann , Csaba D. Tóth

A nonnegative number d_infinity, called asymptotic dimension, is associated with any metric space. Such number detects the asymptotic properties of the space (being zero on bounded metric spaces), fulfills the properties of a dimension, and…

微分几何 · 数学 2007-05-23 Daniele Guido , Tommaso Isola

We prove a new inequality for the asymptotic dimension of HNN-extensions. We deduce that the asymptotic dimension of every finitely generated one relator group is at most two, confirming a conjecture of A.Dranishnikov. As further…

群论 · 数学 2023-11-15 Panagiotis Tselekidis

We consider the problem of minimizing the number of triangles in a graph of given order and size and describe the asymptotic structure of extremal graphs. This is achieved by characterizing the set of flag algebra homomorphisms that…

组合数学 · 数学 2016-05-11 Oleg Pikhurko , Alexander Razborov

We show an asymptotic estimate for the number of labelled planar graphs on $n$ vertices. We also find limit laws for the number of edges, the number of connected components, and other parameters in random planar graphs.

组合数学 · 数学 2007-05-23 Omer Gimenez , Marc Noy

We compute the asymptotics of the number of connected branched coverings of a torus as their degree goes to infinity and the ramification type stays fixed. These numbers are equal to the volumes of the moduli spaces of pairs (curve,…

代数几何 · 数学 2009-10-31 Alex Eskin , Andrei Okounkov