Abstract In this paper, by the Faà di Bruno formula and properties of Bell polynomials second kind, authors reconsider generating functions Hermite their squares, find an explicit for higher-order derivatives function polynomials, derive formulas recurrence relations squares.

In this study, we have investigated sudden changes in volatility and re-examined the persistence of volatility in Japanese and Korean stock markets during 1986–2008. Using the iterated cumulative sums of squares (ICSS) algorithm, we have determined that the identification of sudden changes is generally associated with global financial and political events. We have also demonstrated that control...

This year, every political pundit is focused on the U.S. Presidential campaign, namely the incumbent Republican team vs. the Democratic ticket (yet to be named), and the recently announced Independent candidate. The incumbent, as well as each prospective candidate, is on the stump, raising campaign funds, spouting rhetoric from podiums in universities, town squares, and televised debates, and a...

We formulate and evaluate weighted and ordinary least squares procedures for estimating the parametric rate function of a nonhomogeneous Poisson process. Special emphasis is given to processes having an exponential rate function, where the exponent may include a polynomial component or some trigonometric components or both. Theoretical and experimental evidence is provided to explain some surpr...

In this correspondence, a solution is developed for the regularized total least squares (RTLS) estimate in linear inverse problems where the linear operator is nonconvolutional. Our approach is based on a Rayleigh quotient (RQ) formulation of the TLS problem, and we accomplish regularization by modifying the RQ function to enforce a smooth solution. A conjugate gradient algorithm is used to min...

In this article, the role of Sociological Factors affecting youthparticipation in the cities of Mazandaran province has been investigated. The theoretical framework and theoretical model were presented using theorist's theory such as Lipset, Weber, Perry, and so on. This research was conducted through a survey method, formal and structural validity was used and reliability was also obtained usi...

T AlTe examine some issues in the estimation of time-series cross-section models, calling into 1/11 \ question the conclusions of many published studies, particularly in thefield of comparative T v political economy. We show that the generalized least squares approach of Parks produces standard errors that lead to extreme overconfidence, often underestimating variability by 50% or more. We also...

Controlling wildfire suppression expenditures has become a major public policy concern in the United States. However, most policy remedies have focused on the biophysical determinants of suppression costs: fuel loads and weather, for example. We show that two non-biophysical variables—newspaper coverage and political pressure—have a significant effect on wildfire suppression costs. Hausman test...