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Related papers: Tightness for Thick Points in two dimensions

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We show that for any $\varepsilon>0$ if $\phi:\mathbb{T} \rightarrow \mathbb{T}$ is continuous and $\|\exp(-2\pi i z \phi)\|_{A(\mathbb{T})} =O_{|z|\rightarrow \infty}(\log^{\frac{1}{8}-\varepsilon} |z|)$ then $\phi(x)=wx+t$ for some $w…

Classical Analysis and ODEs · Mathematics 2026-04-09 Tom Sanders

We show that in cosmology the gravitational action of the far away matter has quite relevant effects, if retardation of the forces and discreteness of matter (with its spatial correlation) are taken into account. The expansion rate is found…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-03 A. Carati , S. L. Cacciatori , L. Galgani

Geometrically thick disks may form after tidal disruption events, and rapid accretion may lead to short flares followed by long-term, lower-level emission. Using a novel accretion disk code which relies primarily on global conservation laws…

Astrophysics · Physics 2007-05-23 Andrew Ulmer

We find a family of exact solutions of Einstein equations describing the field of a static axisymmetric thin disk living in six-dimensional space-time. In particular, we study the disks constructed (by cutting out the central part of the…

Astrophysics · Physics 2007-08-27 Carlos H. Coimbra-Araujo , Patricio S. Letelier

In this paper, the asymptotic first order analysis, both mathematical and numerical, of two structures bonded together is presented. Two cases are considered, the gluing of an elastic structure with a rigid body and the gluing of two…

Classical Physics · Physics 2013-05-27 Serge Dumont , Frédéric Lebon , Raffaella Rizzoni

Let $\{X_t\}_{t\geq 0 }$ be a $d$-dimensional supercritical super-Brownian motion started from the origin with branching mechanism $\psi$. Denote by $R_t:=\inf\{r>0:X_s(\{x\in \mathbb{R}^d:|x|\geq r\})=0,~\forall~0\leq s\leq t\}$ the radius…

Probability · Mathematics 2024-05-31 Shuxiong Zhang

The drag of two cylindrical intruders in a two-dimensional granular environment is numerically studied by the discrete element method. We find the yield force, below which the intruders cannot move because of interactions with the…

Soft Condensed Matter · Physics 2022-03-25 Takumi Kubota , Haruto Ishikawa , Satoshi Takada

We present an $\epsilon$-bounded compression method for unit-norm embeddings that achieves 1.5$\times$ compression, 25% better than the best prior lossless method. The method exploits that spherical coordinates of high-dimensional unit…

Machine Learning · Computer Science 2026-03-27 Han Xiao

Consider the first exit time $T_{a,b}$ from a finite interval $[-a,b]$ for an homogeneous fluctuating functional $X$ of a linear Brownian motion. We show the existence of a finite positive constant $\k$ such that…

Probability · Mathematics 2007-10-23 Aimé Lachal , Thomas Simon

Let $A$ be a $\rho$-contraction and $f$ a rational function mapping the closed unit disk into itself. With a new characterization of $\rho$-contractions we prove that \begin{align*} \big\|f(A)\big\|\leq…

Functional Analysis · Mathematics 2024-12-04 Felix L. Schwenninger , Jens de Vries

The distribution of the first hitting time of a disc for the standard two dimensional Brownian motion is computed. By investigating the inversion integral of its Laplace transform we give fairy detailed asymptotic estimates of its density…

Probability · Mathematics 2010-07-28 Kohei Uchiyama

We consider a model of Branching Brownian Motion with time-inhomogeneous variance of the form \sigma(t/T), where \sigma is a strictly decreasing function. Fang and Zeitouni (2012) showed that the maximal particle's position M_T is such that…

Probability · Mathematics 2018-06-20 Pascal Maillard , Ofer Zeitouni

In this article an analytical solution of equations of motion of a rigid disk of finite thickness rolling on its edge on a perfectly rough horizontal plane under the action of gravity is given. The solution is given in terms of Gauss…

Classical Physics · Physics 2007-05-23 Milan Batista

If a particle has to fall first vertically 1 m from A and then move horizontally 1 m to B, it takes a time $t(=\tau_1+\tau_2=\tau_3=3/\sqrt{2g})=0.67$ s. Under gravity and without friction, if it sides down on a linear track inclined at…

Classical Physics · Physics 2020-10-30 Zafar Ahmed , Amal Nathan Joseph

We obtain all extreme and exposed points of the closed unit ball of the space of bilinear forms $T:\ell_{\infty}^{2}\times\ell_{\infty}^{2}\rightarrow \mathbb{R}.$ We also show that any (norm one) bilinear form $T:\ell_{\infty…

Functional Analysis · Mathematics 2016-08-04 Wasthenny Cavalcante , Daniel Pellegrino

In the first two papers of this series, Larsen et al (2010a,b) describe our faint CCD survey in the inner Galaxy and map the over-density of Thick Disk stars in Quadrant I (Q1) to 5 kpc or more along the line of sight. The regions showing…

We make progress towards proving the strong Eshelby's conjecture in three dimensions. We prove that if for a single nonzero uniform loading the strain inside inclusion is constant and further the eigenvalues of this strain are either all…

Analysis of PDEs · Mathematics 2018-06-25 Habib Ammari , Yves Capdeboscq , Hyeonbae Kang , Hyundae Lee , Graeme W. Milton , Habib Zribi

We consider a planar Brownian loop $B$ that is run for a time $T$ and conditioned on the event that its range encloses the unusually high area of $\pi T^2$, with $T$ being large. We study the deviation of the range of the conditioned…

Probability · Mathematics 2007-05-23 Alan Hammond , Yuval Peres

Gravitational instabilities play an important role in structure formation of gas-rich high-redshift disc galaxies. In this paper, we revisit the axisymmetric perturbation theory and the resulting growth of structure by taking the realistic…

Astrophysics of Galaxies · Physics 2015-02-04 Manuel Behrendt , Andreas Burkert , Marc Schartmann

We proved a rigidity result for Delaunay triangulations of the plane under Luo's discrete conformal change, extending previous results on hexagonal triangulations. Our result is a discrete analogue of the conformal rigidity of the plane. We…

Geometric Topology · Mathematics 2024-08-21 Song Dai , Tianqi Wu
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