Results 11 to 20 of about 14,644 (190)

The $W,Z$ scale functions kit for first passage problems of spectrally negative Levy processes, and applications to the optimization of dividends [PDF]

open access: yes, 2019
First passage problems for spectrally negative L\'evy processes with possible absorbtion or/and reflection at boundaries have been widely applied in mathematical finance, risk, queueing, and inventory/storage theory.
Albrecher   +113 more
core   +4 more sources

Exit Problems for Jump Processes Having Double-Sided Jumps with Rational Laplace Transforms

open access: yesAbstract and Applied Analysis, 2014
We consider the two-sided first-exit problem for a jump process having jumps with rational Laplace transform. We derive the joint distribution of the first passage time to two-sided barriers and the value of process at the first passage time.
Yuzhen Wen, Chuancun Yin
doaj   +1 more source

Some exact results for a trapped quantum gas at finite temperature [PDF]

open access: yes, 2002
We present closed analytical expressions for the particle and kinetic energy spatial densities at finite temperatures for a system of noninteracting fermions (bosons) trapped in a d-dimensional harmonic oscillator potential.
Akira Suzuki   +21 more
core   +1 more source

Meromorphic Levy processes and their fluctuation identities [PDF]

open access: yes, 2011
The last couple of years has seen a remarkable number of new, explicit examples of the Wiener-Hopf factorization for Levy processes where previously there had been very few.
Kuznetsov, Alexey   +2 more
core   +4 more sources

Null Spaces of Radon Transforms [PDF]

open access: yes, 2015
We obtain new descriptions of the null spaces of several projectively equivalent transforms in integral geometry. The paper deals with the hyperplane Radon transform, the totally geodesic transforms on the sphere and the hyperbolic space, the spherical ...
Estrada, Ricardo, Rubin, Boris
core   +1 more source

Omega risk model with tax [PDF]

open access: yes, 2014
In this paper we study the Omega risk model with surplus-dependent tax payments in a time-homogeneous diffusion setting. The new model incorporates practical features from both the Omega risk model(Albrecher and Gerber and Shiu (2011)) and the risk model
Cui, Zhenyu
core   +1 more source

Exact results for a charged, harmonically trapped quantum gas at arbitrary temperature and magnetic field strength

open access: yes, 2006
An analytical expression for the first-order density matrix of a charged, two-dimensional, harmonically confined quantum gas, in the presence of a constant magnetic field is derived.
A. M. Kosevitch   +4 more
core   +1 more source

Record Statistics of Continuous Time Random Walk

open access: yes, 2011
The statistics of records for a time series generated by a continuous time random walk is studied, and found to be independent of the details of the jump length distribution, as long as the latter is continuous and symmetric.
Sabhapandit, Sanjib
core   +2 more sources

Evaporation of a thin film: diffusion of the vapour and Marangoni instabilities [PDF]

open access: yes, 2004
The stability of an evaporating thin liquid film on a solid substrate is investigated within lubrication theory. The heat flux due to evaporation induces thermal gradients; the generated Marangoni stresses are accounted for.
Amar, Martine Ben   +2 more
core   +3 more sources

Limiting distributions of continuous-time random walks with superheavy-tailed waiting times

open access: yes, 2013
We study the long-time behavior of the scaled walker (particle) position associated with decoupled continuous-time random walk which is characterized by superheavy-tailed distribution of waiting times and asymmetric heavy-tailed distribution of jump ...
Bystrik, Yu. S.   +2 more
core   +1 more source

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