abstract natural disasters threatening and endangering human communities has resulted in the study and research of such disasters through the related sciences and present methods of forecasting their behavior with time and place and also from a qualification and quantity viewpoint. to this end, numerous methods for the determination of the maximum flood in various return period has been made av...

We present the results of a numerical study of the 2 3L spin1 2 Heisenberg ladder. Ground state energies and the singlet-triplet energy gaps for 4<L<14 and J' /J uu 5 1 were obtained in a Lanczos calculation and checked against earlier calculations by Barnes et al. ~even L< 12!. A related moments technique is then employed to evaluate spin response functions for L 5 12 and a range of J' /J uu ~...

An important problem in number theory asks for asmptotic formulas for the moments of central values of L-functions varying in a family. This problem has been intensively studied in recent years, and thanks to the pioneering work of Keating and Snaith [7], and the subsequent contributions of Conrey, Farmer, Keating, Rubinstein and Snaith [1], and Diaconu, Goldfeld and Hoffstein [3] there are now...

Variance is one of the most important measures descriptive statistics and commonly used for statistical analysis. The traditional second-order central moment based variance estimation a widely utilized methodology. However, estimator highly affected in presence extreme values. So this paper initially, proposes two classes calibration estimators on an adaptation recently proposed by Koyuncu then...