Results 1 to 10 of about 69,680 (260)

A note on contracts on quadratic variation. [PDF]

open access: yesPLoS ONE, 2017
Given a Black stochastic volatility model for a future F, and a function g, we show that the price of [Formula: see text] can be represented by portfolios of put and call options. This generalizes the classical representation result for the variance swap.
Carl Lindberg
doaj   +5 more sources

Quadratic variation and quadratic roughness

open access: yesBernoulli, 2023
We study the concept of quadratic variation of a continuous path along a sequence of partitions and its dependence with respect to the choice of the partition sequence. We define the concept of quadratic roughness of a path along a partition sequence and show that, for Hölder-continuous paths satisfying this roughness condition, the quadratic variation
Rama Cont
exaly   +5 more sources

On pathwise quadratic variation for càdlàg functions

open access: yesElectronic Communications in Probability, 2018
arXiv admin note: text overlap with arXiv:1704 ...
Henry Chiu, Rama Cont
exaly   +6 more sources

On Quadratic Variation of Processes with Gaussian Increments

open access: yesAnnals of Probability, 1975
This note extends to a broad class of stochastic processes with Gaussian increments the following theorem of R. M. Dudley (Ann. Probability 1 66-103): if $\{\pi_n\}$ is any sequence of partitions of [0, 1] with mesh $(\pi_n) = o(1/\log n)$ and if $L(\pi_n)^2$ is the quadratic variation of Brownian motion corresponding to $\pi_n$, then a.s.-$\lim_{n ...
Evarist Gine
exaly   +3 more sources

Spectral characterization of the optional quadratic variation process [PDF]

open access: yesStochastic Processes and Their Applications, 1994
The authors prove some results on how to characterize the optional quadratic variation process via the periodogram of a semimartingale.
Peter Spreij
exaly   +6 more sources

Quadratic Variation of Functionals of Brownian Motion

open access: yesAnnals of Probability, 1977
The quadratic variation of functionals $F(t)$ of $n$-dimensional Brownian motion is investigated. Let $\Pi_n = \{t_1^n, t_2^n, \cdots, t^n_{l(n)}\}$ with $a = t_1^n < t_2^n < \cdots < t^n_{l(n)} = b$ be a family of partitions of the interval $\lbrack a, b\rbrack$. The limiting behavior of $Q^2(F, \Pi_n) = \sum^{l(n)-1}_{k=1} (F(t^n_{k+1}) - F(t_k^n))^2$
exaly   +3 more sources

Optimal Execution with Quadratic Variation Inventories [PDF]

open access: yesSIAM Journal on Financial Mathematics, 2021
26 pages, 20 figures, 8 ...
Rene Carmona, Laura Leal
openaire   +3 more sources

IMPLEMENTATION OF QUADRATIC AXIAL TRIAL FUNCTIONS IN THE HIGH-FIDELITY TRANSPORT CODE PROTEUS-MOC [PDF]

open access: yesEPJ Web of Conferences, 2021
PROTEUS-MOC is a pin-resolved high-fidelity transport code, in which the axial variation of angular flux is represented in terms of orthogonal polynomials.
Zhang Guangchun, Yang Won Sik
doaj   +1 more source

BDG inequalities and their applications for model-free continuous price paths with instant enforcement

open access: yesModern Stochastics: Theory and Applications, 2023
Shafer and Vovk introduce in their book [8] the notion of instant enforcement and instantly blockable properties. However, they do not associate these notions with any outer measure, unlike what Vovk did in the case of sets of “typical” price paths.
Rafał Marcin Łochowski
doaj   +1 more source

New Studies of the Aberrant Alterations in Fibrillin-1 Methylation During Colorectal Cancer Development

open access: yesFrontiers in Oncology, 2022
BackgroundFibrillin-1 (FBN1) methylation risk from control to colorectal cancer (CRC), the variation regularities of FBN1 methylation, and DNA methyltransferase (DNMT) catalyzed with FBN1 methylation had not been reported yet; these were all studied in ...
Ling Lv   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy