Volume 1, No. 2, December 2008, Muharram 1430 H
Articles 


Strongly Real Elements in Sporadic Groups and Alternating Groups
We determine the elements in the Sporadic and the Alternating Groups which are strongly
real. In the Alternating Groups every real element is strongly real, but this is not true in all
Sporadic Groups. Main results for the Alternating groups are given in proposition 6 while the
results for the Sporadic Groups are computed manually or by using GAP[5].


Ibrahim Suleiman
JJMS,
2008, 1(2),
97103

Stochastic Loss Systems Models and Policies
In a multiserver system, probability distributions and loss probabilities for customers
arriving with k different priority categories are studied. Customers arrive in independent Poisson
streams and their service times are exponentially distributed, with different rate for different
priority. The nonqueuing customers or the loss customers will be lost if the capacity is fully
occupied.


Mohammad Bataineh
JJMS,
2008, 1(2),
105121

Weakly CNormal and Cs Normal Subgroups of Finite Groups
A subgroup H of a finite group G is weakly c − normal subgroup of G if there exists
a subnormal subgroup N of G such that G = H N , and ( ) G H ∩N ≤ core H , where
( ) G core H denotes the core of H in G , which is the largest normal subgroup of G
contained in H . If ( ) G.. H ∩N ≤ core H , then H is S c − normal subgroup of G , where
( ) G.. core H denotes the higher core of H in G , which is the largest subnormal subgroup of
G contained in H .


Mohammad Tashtoush
JJMS,
2008, 1(2),
1523

Nonlinear Approximation in Some Sequence Spaces
We show that approximation of an element in `p space
by finite number of terms is arbitrary slow, but if we use `q norm,
with q > p, as a measure of the error, then the approximation
is faster.


Salti Samarah
JJMS,
2008, 1(2),
133142

Some Inequalities of Hilbert's Type and Applications
By introducing some parameters we establish an extension of
HardyHilbert’s integral inequality and the corresponding inequality for series.


Laith Emil Azar
JJMS,
2008, 1(2),
143162

