One of the most important mathematical constants is Euler-Mascheroni constant that is the limit of the sequence --------------------------------  and is denoted by gamma. Some other developed constants known as Euler type constants are introduced in order to generalize the above constant. In the present paper, inspired by the functional sequence derivative of the limit summand of functions (i...

Recently‎, ‎the beta regression model has been used in several fields of science to data the form rate or proportion‎. ‎In this paper‎, ‎we propose some novel and improved methods estimate parameters model‎. ‎We consider a sub-space on coefficients combine unrestricted restricted estimators then we present Stein-type preliminary estimators‎. develop expressions for proposed estimators' asymptot...

in this paper we will prove that if $l$ is a continuous symmetric n-linear form on a hilbert spaceand $widehat{l}$ is the associated continuous n-homogeneous polynomial, then $||l||=||widehat{l}||$.for the proof we are using a classical generalized  inequality due to s. bernstein for entire functions of exponential type. furthermore we study the case that if x is a banach space then we have tha...

We study cubical sets without degeneracies, which we call –sets. These sets arise naturally in a number of settings and they have a beautiful intrinsic geometry; in particular a –set C has an infinite family of associated –sets J (C), i = 1, 2, . . ., which we call James complexes. There are mock bundle projections pi : |J (C)| → |C| (which we call James bundles) defining classes in unstable co...

IDEA is a block cipher designed by Xuejia Lai and James L. Massey and was first described in 1991. IDEA does not vary the constant in its key schedule. In [1], Donghoon Chang and Moti Yung showed that there may be a weakness of hash function based on block cipher whose key schedule does not use various constants. Based on their result, we investigate the security of double block length compress...