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Variable OH/IR stars are Asymptotic Giant Branch (AGB) stars with an optically thick circumstellar envelope that emit strong OH 1612 MHz emission. They are commonly observed throughout the Galaxy but also in the LMC and SMC. Hence, the…

Solar and Stellar Astrophysics · Physics 2018-08-22 Sandra Etoka , Dieter Engels , Eric Gerard , Anita M. S. Richards

It is known that if a sequence of domains $U_n$ converges to a domain $U$ in the Caratheodory sense then the hyperbolic densities on $U_n$ converge to the hyperbolic density on $U$. In this paper, we study the rate of convergence of the…

Complex Variables · Mathematics 2012-10-08 Nikola Lakic , Greg Markowsky

We study a class of two dimensional partially hyperbolic systems, not necessarily skew products, trying to establish the germ of a general theory. To illustrate the scope of the theory, we apply our results to the case of fast-slow…

Dynamical Systems · Mathematics 2022-02-23 Roberto Castorrini , Carlangelo Liverani

We study the relationship between two concepts: cut limits and hyperbolic extensions.

Differential Geometry · Mathematics 2016-09-21 Pedro Ontaneda

Localization and dilation procedures are discussed for infinite dimensional $\alpha$-concave measures on abstract locally convex spaces (following Borell's hierarchy of hyperbolic measures).

Probability · Mathematics 2014-05-14 Sergey G. Bobkov , James Melbourne

Topological dynamics constitutes the study of asymptotic properties of orbits under flows or maps on the Hausdorff phase space. Hyperbolic dynamics is the study of differentiable flows or maps that are usually characterized by the presence…

Dynamical Systems · Mathematics 2025-09-11 Anima Nagar

A heat equation with uncertain domains is thoroughly investigated. Statistical moments of the solution is approximated by the counterparts of the shape derivative. A rigorous proof for the existence of the shape derivative is presented.…

Analysis of PDEs · Mathematics 2020-09-30 Duong Thanh Pham , Thanh Tran

We derive geometric formulas for the mass of asymptotically hyperbolic manifolds using coordinate horospheres. As an application, we obtain a new rigidity result of hyperbolic space: if a complete asymptotically hyperbolic manifold has…

Differential Geometry · Mathematics 2022-03-30 Hyun Chul Jang , Pengzi Miao

This paper is devoted to establishing four types of sharp capacitary inequalities within the hyperbolic space as detailed in Theorems 2.1-3.1-4.1-5.1.

Differential Geometry · Mathematics 2025-02-20 Xiaoshang Jin , Jie Xiao

We give tight upper and lower bounds of the cardinality of the index sets of certain hyperbolic crosses which reflect mixed Sobolev-Korobov-type smoothness and mixed Sobolev-analytic-type smoothness in the infinite-dimensional case where…

Numerical Analysis · Mathematics 2015-11-10 Dinh Dũng , Michael Griebel

We give an alternative definition of relative hyperbolicity based on properties of closest-point projections on peripheral subgroups. We also derive a distance formula for relatively hyperbolic groups, similar to the one for mapping class…

Metric Geometry · Mathematics 2012-04-04 Alessandro Sisto

This paper proposes sG-hyperbolicity as a new tool for studying hyperbolicity on complex manifolds. It demonstrates that this notion leads to a wider class of divisorially hyperbolic manifolds compared to balanced hyperbolicity. We also…

Differential Geometry · Mathematics 2024-04-16 Yi Ma

In this paper, we study the stabilization problem for a hyperbolic type Stokes system posed on a bounded domain. We show that when the damping effects are restricted to a subdomain satisfying the geometrical control condition the system…

Analysis of PDEs · Mathematics 2020-07-21 Felipe W. Chaves-Silva , Chenmin Sun

In this paper we give an local estimate for the Kobayashi distance on a bounded convex domain of finite type, which relates to a local pseudodistance near the boundary. The estimate is precise up to a bounded additive term. Also we conclude…

Complex Variables · Mathematics 2022-11-22 Hongyu Wang

We study the number and the length of systoles on complete finite area orientable hyperbolic surfaces. In particular, we prove upper bounds on the number of systoles that a surface can have (the so-called kissing number for hyperbolic…

Geometric Topology · Mathematics 2016-01-27 Federica Fanoni , Hugo Parlier

All orientation preserving isometries of the hyperbolic three-space are studied, and the probability density of conjugate pair separations for each isometry is presented. The study is relevant for the cosmic crystallography, and is the…

General Relativity and Quantum Cosmology · Physics 2007-05-23 A. F. F. Teixeira

We prove limit theorems for the greatest common divisor and the least common multiple of random integers. While the case of integers uniformly distributed on a hypercube with growing size is classical, we look at the uniform distribution on…

Number Theory · Mathematics 2022-09-27 Alexander Iksanov , Alexander Marynych , Kilian Raschel

In this paper we mainly pay attention to the complex hyperbolic triangle groups of type (m, n, infinity) and discuss the discreteness. From the results more explicit conclusions about the triangle groups of type (n, infinity, infinity) will…

Geometric Topology · Mathematics 2015-08-19 Li-Jie Sun

We study the scattering relation and the sojourn times on non-trapping asymptotically hyperbolic manifolds and use it to obtain the asymptotics of the distance function on geodesically convex asymptotically hyperbolic manifolds.

Analysis of PDEs · Mathematics 2014-10-28 Antonio Sa Barreto , Yiran Wang

Considering the hydrodynamical limit of some interacting particle systems leads to hyperbolic differential equation for the conserved quantities, e.g. the inviscid Burgers equation for the simple exclusion process. The physical solutions of…

Probability · Mathematics 2007-09-12 Marton Balazs