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2 2009

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Bose-Einstein Condensation of Hard Sphere Homogeneous Gas in Static Fluctuation Approximation

100%

Al-Sugheir M. , Gasymeh S. , Shatnawi M. , Bawa'aneh M.

Acta Physica Polonica A

2009

tom 116

nr 2

154-156

The condensation fraction, transition temperature, and energy per particle for a hard sphere interacting homogeneous Bose gas using the static fluctuation approximation have been determined. The transition temperature at liquid helium density has been found to be lower than that for the noninteracting gas. Both superfluidity and the Bose-Einstein condensation have been found to occur at the same transition temperature. Our results are consistent with results obtained by other methods.

On B-injectors of symmetric groups Sₙ and alternating groups Aₙ: a new approach

75%

AlAli M. , Al-Hasanat B. , Sarayreh I. , Kasassbeh M. , Shatnawi M. , Neumann A.

Colloquium Mathematicum

2009

tom 115

nr 2

247-258

The aim of this paper is to introduce the notion of BG-injectors of finite groups and invoke this notion to determine the B-injectors of Sₙ and Aₙ and to prove that they are conjugate. This paper provides a new, more straightforward and constructive proof of a result of Bialostocki which determines the B-injectors of the symmetric and alternating groups.