Results 31 to 40 of about 432 (189)

Maximum loss and maximum gain of spectrally negative Lévy processes

open access: yes, 2017
Maximum loss and maximum gain of spectrally negative Lévy ...
Çağlar, Mine, Vardar Acar, Ceren
core   +1 more source

Spectrally negative Lévy processes with applications in risk theory

open access: yes, 2001
In this paper, results on spectrally negative Lévy processes are used to study the ruin probability under some risk processes. These processes include the compound Poisson process and the gamma process, both perturbed by diffusion. In addition, the first
Zhang, L, Yang, H
core   +1 more source

An optimal dividends problem with a terminal value for spectrally negative Lévy processes with a completely monotone jump density [PDF]

open access: yes, 2009
We consider a modified version of the classical optimal dividends problem of de Finetti in which the objective function is altered by adding in an extra term which takes account of the ruin time of the risk process, the latter being modeled by a ...
Loeffen, R. L.
core   +1 more source

Addressing limitations in current measurement practices of trauma assessment in minoritized populations

open access: yesJournal of Traumatic Stress, EarlyView.
Abstract Standardized trauma assessment frameworks often fail to account for the unique experiences and symptom presentations of minoritized populations, including Black, Indigenous, and people of color (BIPOC) and sexual and gender minority (SGM) individuals, leading to methodological inequity.
Krithika Prakash   +4 more
wiley   +1 more source

On optimality of the barrier strategy in de Finetti's dividend problem for spectrally negative Lévy processes [PDF]

open access: yes, 2008
We consider the classical optimal dividend control problem which was proposed by de Finetti [Trans. XVth Internat. Congress Actuaries 2 (1957) 433-443], Recently Avram, Palmowski and Pistorius [Ann. Appl. Probab.
Loeffen, R. L., R. L. Loeffen
core   +1 more source

Speech and Deep Brain Stimulation in Parkinson's Disease, Essential Tremor, and Dystonia: A Systematic Review and Meta‐analysis

open access: yesMovement Disorders, EarlyView.
Abstract Deep brain stimulation (DBS) effectively treats motor symptoms in movement disorders but often compromises speech through incompletely defined mechanisms. We conducted a PROSPERO‐registered systematic review and meta‐analysis of publications through August 2024 (CRD42024527738).
Elina Tripoliti   +15 more
wiley   +1 more source

On the last exit times for spectrally negative Lévy processes

open access: yes, 2017
Using a new approach, for spectrally negative Lévy processes we find joint Laplace transforms involving the last exit time (from a semiinfinite interval), the value of the process at the last exit time, and the associated occupation time, which ...
Xiaowen Zhou, Yingqiu Li, Chuancun Yin
core   +1 more source

Fractional Moment Theory for Anomalous Transport: A Unified Framework for Lévy Flights, Fractals, and Complex Dynamical Systems

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We develop a unified mathematical framework extending classical moment theory from discrete integer orders to a continuous spectrum of real orders f>0$$ f>0 $$, providing a systematic statistical characterization of complex systems exhibiting power‐law behavior.
Farrukh A. Chishtie
wiley   +1 more source

Predicting the Last Zero of a Spectrally Negative Lévy Process [PDF]

open access: yes, 2020
Last passage times arise in a number of areas of applied probability, including risk theory and degradation models. Such times are obviously not stopping times since they depend on the whole path of the underlying process.
José M. Pedraza   +3 more
core   +1 more source

Examining the multi‐disciplinary origins of biophobia towards threatening and non‐threatening wildlife in a highly urbanised city in China

open access: yesPeople and Nature, EarlyView.
Abstract Urbanisation is reshaping how people experience wildlife, reducing our shared spaces with local biodiversity. Fewer opportunities for human–wildlife interactions weaken our emotional attachments to nature and precipitate a loss of species knowledge and familiarity.
Sam S. S. Lau   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy