Results 21 to 30 of about 91,552 (229)

The distribution of tax payments in a Lévy insurance risk model with a surplus-dependent taxation structure [PDF]

open access: yes, 2009
We study the distribution of tax payments in the model of Kyprianou and Zhou [Kyprianou, A.E., Zhou, X., 2009. General tax structures and the Lévy insurance risk model. J. Appl. Probab.
Renaud, Jean-François
core   +1 more source

Lévy flight of superdiffusive light in coupled waveguide lattices

open access: yesPhysical Review Research, 2020
Exotic light behavior in certain disordered one-dimensional optical waveguide lattices with selectively doped gain/loss operating away from the PT symmetry regime is reported.
Sayan Bhattacherjee   +2 more
doaj   +1 more source

Fluid limit of the continuous-time random walk with general Lévy jump distribution functions [PDF]

open access: yes, 2007
The continuous time random walk (CTRW) is a natural generalization of the Brownian random walk that allows the incorporation of waiting time distributions ψ(t) and general jump distribution functions η(x).
Cartea, Álvaro   +1 more
core   +2 more sources

Logarithmic Lévy process directed by Poisson subordinator

open access: yesModern Stochastics: Theory and Applications, 2019
Let $\{L(t),t\ge 0\}$ be a Lévy process with representative random variable $L(1)$ defined by the infinitely divisible logarithmic series distribution. We study here the transition probability and Lévy measure of this process.
Penka Mayster, Assen Tchorbadjieff
doaj   +1 more source

On the time spent in the red by a refracted L\'evy risk process [PDF]

open access: yes, 2013
In this paper, we introduce an insurance ruin model with adaptive premium rate, thereafter refered to as restructuring/refraction, in which classical ruin and bankruptcy are distinguished.
Renaud, Jean-François
core   +2 more sources

Cliquet option pricing in a jump-diffusion Lévy model

open access: yesModern Stochastics: Theory and Applications, 2018
We investigate the pricing of cliquet options in a jump-diffusion model. The considered option is of monthly sum cap style while the underlying stock price model is driven by a drifted Lévy process entailing a Brownian diffusion component as well as ...
Markus Hess
doaj   +1 more source

Mutations as Levy flights

open access: yesScientific Reports, 2021
Data from a long time evolution experiment with Escherichia Coli and from a large study on copy number variations in subjects with European ancestry are analyzed in order to argue that mutations can be described as Levy flights in the mutation space ...
Dario A. Leon, Augusto Gonzalez
doaj   +1 more source

Event-by-Event Investigation of the Two-Particle Source Function in Heavy-Ion Collisions with EPOS

open access: yesEntropy, 2022
Exploring the shape of the pair-source function for particles such as pions or kaons has been an important goal of heavy-ion physics, and substantial effort has been made in order to understand the underlying physics behind the experimental observations ...
Dániel Kincses   +2 more
doaj   +1 more source

A Lévy Flight Based BAT Optimization Algorithm for Block-based Image Compression

open access: yesTehnički Glasnik, 2022
Many metaheuristics have been adopted to solve the codebook generation problem in image processing. In this paper, the Bat algorithm is combined by the Lévy flight distribution to find out the global optimum codebook.
Ilker Kilic
doaj  

Levy Foraging in a Dynamic Environment – Extending the Levy Search

open access: yesInternational Journal of Advanced Robotic Systems, 2015
A common task for robots is the patrolling of an unknown area with inadequate information about target locations. Under these circumstances it has been suggested that animal foraging could provide an optimal or at least sub-optimal search methodology ...
Vincenzo Fioriti   +3 more
doaj   +1 more source

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