Results 1 to 10 of about 259,656 (266)

On Exceedance Times for Some Processes with Dependent Increments [PDF]

open access: greenJournal of Applied Probability, 2014
Let {Z n } n≥0 be a random walk with a negative drift and independent and identically distributed increments with heavy-tailed distribution, and let M = sup n≥0 Z n be its supremum.
Asmussen, Søren, Foss, Sergey
core   +14 more sources

Stochastic differential equations driven by Gaussian processes with dependent increments and related market models with memory

open access: green, 2006
In the last ten years fractional Brownian motion BHt received a lot of attention (e.g. [Be],[GrNo], [HuOk],[HuOkSa], [So] [DeUs], [Oh] and [DuHuPa]). This process has dependent increments, which make it interesting for many applications such as finance (e.g. [HuOk], [Be]) and network simulations (e.g. [No]). However, BHt has a covariance function E(BHt
Daniel Schiemert
semanticscholar   +4 more sources

Limiting processes with dependent increments for measures on symmetric group of permutations

open access: closedAdvanced Studies in Pure Mathematics, 2019
A family of measures on the set of permutations of the first $n$ integers, known as Ewens sampling formula, arises in population genetics. In a series of papers, the first two authors have developed necessary and sufficient conditions for the weak convergence of a partial sum process based on these measures to a process with independent increments ...
Babu, Gutti Jogesh   +2 more
semanticscholar   +4 more sources

Larval condition and growth of Sardinella brasiliensis (Steindachner, 1879): preliminary results from laboratory studies [PDF]

open access: yesScientia Marina, 2003
Brazilian sardine, the most important resource along the southeastern Brazilian coast, presented great variations and declines in its stocks. The main factors contributing to this are: oceanographic structure changes; recruitment failures; excessive ...
Carmen Lúcia del Bianco Rossi-Wongtschow   +3 more
doaj   +3 more sources

Time-inhomogeneous jump processes and variable order operators [PDF]

open access: yes, 2016
In this paper we introduce non-decreasing jump processes with independent and time non-homogeneous increments. Although they are not L\'evy processes, they somehow generalize subordinators in the sense that their Laplace exponents are possibly different ...
Orsingher, Enzo   +2 more
core   +2 more sources

Split invariance principles for stationary processes [PDF]

open access: yes, 2011
The results of Koml\'{o}s, Major and Tusn\'{a}dy give optimal Wiener approximation of partial sums of i.i.d. random variables and provide an extremely powerful tool in probability and statistical inference. Recently Wu [Ann. Probab. 35 (2007) 2294--2320]
Berkes, István   +2 more
core   +2 more sources

The Processes with Dependent Increments as Mathematical Models of the Interest Rate Processes

open access: green, 2012
Processes of the interest rates and other financial indexes in continuous time are usually modeled in the literature by stochastic processes with independent increments. Such processes are described by the stochastic differential equations and are the Markov processes.
Gennady Medvedev
openaire   +3 more sources

Extremal Behavior of Multivariate Mixed Moving Average Processes and of Random Walks with Dependent Increments

open access: green, 2012
The doctoral thesis treats with the extremal behavior of stochastic processes using the concept of regular variation. In particular, finite and infinite-dimensional regular variation is proved for mixed moving average processes driven by regularly varying Lévy bases.
Martin Möser
openaire   +3 more sources

Heterogeneous CaMKII-Dependent Synaptic Compensations in CA1 Pyramidal Neurons From Acute Hippocampal Slices

open access: yesFrontiers in Cellular Neuroscience, 2022
Prolonged changes in neural activity trigger homeostatic synaptic plasticity (HSP) allowing neuronal networks to operate within functional ranges. Cell-wide or input-specific adaptations can be induced by pharmacological or genetic manipulations of ...
Pablo Vergara   +4 more
doaj   +1 more source

Large-Conductance Calcium-Activated Potassium Channels and Voltage-Dependent Sodium Channels in Human Cementoblasts

open access: yesFrontiers in Physiology, 2021
Cementum, which is excreted by cementoblasts, provides an attachment site for collagen fibers that connect to the alveolar bone and fix the teeth into the alveolar sockets.
Satomi Kamata   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy