Results 61 to 70 of about 919,859 (183)

Some representations for inverse rising factorial moments

Mathematical and Computer Modelling of Dynamical Systems
Inverse rising factorial moments [Formula: see text] are fundamental quantities for positive integer-valued random variables, with broad applications in probability and combinatorics.
Xiaoxue Li, Yuankui Ma, Taekyun Kim, Dae San Kim   +3 more
doaj   +1 more source

Sector Formula for Approximation of Spread Option Value & Greeks and Its Applications

Commodities
The goal of this paper is to derive closed-form approximation formulas for the spread option value and Greeks by using double integration and investigating the exercise boundary.
Roza Galeeva, Zi Wang
doaj   +1 more source

Magnetoconductivity in the presence of Bychkov-Rashba spin-orbit interaction

, 2006
A closed-form analytic formula for the magnetoconductivity in the diffusive regime is derived in the presence of Bychkov-Rashba spin-orbit interaction in two dimensions.
Alexander Punnoose, Al’tshuler B. L., D’yakonov M. I., Vas’ko F. T.   +3 more
core   +1 more source

按传动角设计曲柄摇杆机构的闭式解

Jixie chuandong, 2010
Aiming at the defect in designing crank-rocker mechanism by transmission angels,the existence and uniqueness of closed-form solution for designing crank-rocker mechanism by γmin≥[γ] is proved."γmin≥[γ]" is turned into an one-variable inequality,and it is
程友联, 吴晓红
doaj  

Solvability of a class of hyperbolic-cosine-type difference equations

Advances in Difference Equations, 2020
We describe a method for constructing one of the basic classes of solvable hyperbolic-cosine-type difference equations, generalizing a known difference equation by Laplace in a natural way.
Stevo Stević, Bratislav Iričanin, Witold Kosmala, Zdeněk Šmarda   +3 more
doaj   +1 more source

A generalized GN-model closed-form formula

, 2018
The GN-model of fiber non-linearity has had quite substantial success in modern optical telecommunications networks as a design and management tool. A version of it, capable of handling arbitrary WDM combs and link structures in closed form, was proposed in 2014.
openaire   +2 more sources

Publisher Correction: Mathematical Analysis of a Modified Closed-Form Formula for Design a Uniform Leaky-Wave Antenna With Ultra-Low SLL. [PDF]

Sci Rep, 2021
Kiani A, Geran F, Hashemi SM, Forooraghi K.   +3 more
europepmc   +1 more source

An Asymptotic Expansion with Push-Down of Malliavin Weights [PDF]

This paper derives asymptotic expansion formulas for option prices and implied volatilities as well as the density of the underlying asset price in multi-dimensional stochastic volatility models.
Akihiko Takahashi, Toshihiro Yamada
core   +3 more sources

Automated, closed form integration of formulas in elliptic motion [PDF]

Celestial Mechanics, 1971
In some perturbation theories it is possible to avoid expansion of the perturbations in powers of the eccentricity, obtaining results in closed form by using the true or eccentric anomaly instead of the mean anomaly. This paper describes an algorithm (which has been programmed for the 6600 computer using the formula manipulation system TRIGMAN) for ...
openaire   +1 more source

An optical method for deriving the anterior and posterior curvatures of intraocular lenses using dual back-vertex power measurements.

PLoS ONE
We present a theoretical framework to estimate the anterior and posterior radii of curvature of a thick intraocular lens (IOL) by measuring its back-vertex power in two orientations.
Damien Gatinel
doaj   +1 more source