Results 21 to 30 of about 885,756 (290)

Using CAViaR models with implied volatility for value-at-risk estimation [PDF]

open access: yes, 2013
This paper proposes VaR estimation methods that are a synthesis of conditional autoregressive value at risk (CAViaR) time series models and implied volatility.
Jeon, Jooyoung, Taylor, James
core   +1 more source

Comparative Analysis of the Time-Fractional Black–Scholes Option Pricing Equations (BSOPE) by the Laplace Residual Power Series Method (LRPSM)

open access: yesJournal of Mathematics, 2023
The residual power series method is effective for obtaining solutions to fractional-order differential equations. However, the procedure needs the n−1ϖ derivative of the residual function.
Muhammad Imran Liaqat, Eric Okyere
doaj   +1 more source

Fitting an error distribution in some heteroscedastic time series models [PDF]

open access: yes, 2006
This paper addresses the problem of fitting a known distribution to the innovation distribution in a class of stationary and ergodic time series models.
Koul, Hira L., Ling, Shiqing
core   +2 more sources

Residue fixed point index and wildly ramified power series

open access: yesJournal of the London Mathematical Society, 2020
In this paper, we study power series having a fixed point of multiplier 1. First, we give a closed formula for the residue fixed point index, in terms of the first coefficients of the power series. Then, we use this formula to study wildly ramified power series in positive characteristic.
Nordqvist, Jonas, Rivera-Letelier, Juan
openaire   +3 more sources

A new iterative algorithm on the time-fractional Fisher equation: Residual power series method

open access: yesAdvances in Mechanical Engineering, 2017
In this article, the residual power series method is used to solve time-fractional Fisher equation. The residual power series method gets Maclaurin expansion of the solution.
Maysaa’ Mohamed Al Qurashi   +3 more
doaj   +1 more source

Influence of second-order corrections to the energy-dependence of neutrino flavor conversion formulae [PDF]

open access: yes, 2007
We discuss the {\em intermediate} wave-packet formalism for analytically quantifying the energy dependence of the two-flavor conversion formula that is usually considered for analyzing neutrino oscillations and adjusting the focusing horn, target ...
A. E. BERNARDINI   +7 more
core   +1 more source

A new class of distribution-free tests for time series models specification [PDF]

open access: yes, 2009
The construction of asymptotically distribution free time series model specification tests using as statistics the estimated residual autocorrelations is considered from a general view point. We focus our attention on Box-Pierce type tests based on the
Delgado, Miguel A., Velasco, Carlos
core   +9 more sources

Toward computational algorithm for time-fractional Fokker–Planck models

open access: yesAdvances in Mechanical Engineering, 2019
This article describes an efficient algorithm based on residual power series to approximate the solution of a class of partial differential equations of time-fractional Fokker–Planck model. The fractional derivative is assumed in the Caputo sense.
Asad Freihet   +5 more
doaj   +1 more source

Series Representations for Uncertain Fractional IVPs in the Fuzzy Conformable Fractional Sense

open access: yesEntropy, 2021
Fuzzy differential equations provide a crucial tool for modeling numerous phenomena and uncertainties that potentially arise in various applications across physics, applied sciences and engineering. Reliable and effective analytical methods are necessary
Malik Bataineh   +3 more
doaj   +1 more source

Laplace-Residual Power Series Method for Solving Time-Fractional Reaction–Diffusion Model

open access: yesFractal and Fractional, 2023
Despite the fact the Laplace transform has an appreciable efficiency in solving many equations, it cannot be employed to nonlinear equations of any type. This paper presents a modern technique for employing the Laplace transform LT in solving the nonlinear time-fractional reaction–diffusion model.
Moa’ath N. Oqielat   +5 more
openaire   +2 more sources

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