Weakly injective dimension and Almost perfect rings
Journal Title: JOURNAL OF ADVANCES IN MATHEMATICS - Year 2014, Vol 5, Issue 2
Abstract
In this paper, we study the weak-injective dimension and we characterize the global weak-injective dimension of rings. After we study the transfer of the global weak-injective dimension in some known ring construction. Finely we study the transfer of almost perfect property in pullback and D+M constructions.
Authors and Affiliations
Ouarghi Khalid
The solvable subgroups of large order of L2(p) , p≥5
By using the following theoretical and computational algorithms , we determined the solvable subgroups of large order of the finite non-abelian simple linear groups G = L2(p) = PSL(2,p) , for p≥5 and p is a prime numbe...
Ephemerides of Visual Binaries of highly eccentric orbits
Ephemerides of binary stars are important information for astronomical observation and research. In this paper, ephemerides of the visual binaries ADS784, ADS13665, A1529, ADS836, ADS 3434, ADS1105 and ADS 3315 have been...
Initial Value Problem for Stochastic Hyprid Hadamard Fractional Differential Equation
In this paper, we discuss the existence of solutions for a stochastic initial value problem of Hyprid fractional dierential equations of Hadamard type given by ...
ON RANK-ONE ? *-COMMUTING OPERATORS
Let ? be a non zero complex number. An operator A is a rank one ? *-commutes with B if AB - ? BA* has rank one. If, moreover, B is compact operator then A is called to belong to (H). In other words,(H) = fA 2...
ON upper and lower SP-θ (semi-pre-θ)-Continuous Multifunctions
In this paper we introduce and investigate a new types of multifunctions called upper(lower) sp-θ-continuous multifunctions and upper(lower) semi-pre-θ-continuous multifunctions by using the notions in [1]. The concept...