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Toplam kayıt 17, listelenen: 11-17
On Partial Derivatives Of The Incomplete Beta Function
(Pergamon-Elsevier Science Ltd, 2008)
The incomplete beta function B(x) (a, b) is defined for a, b > 0 and 0 < x < 1 and its definition was extended to negative integer values of a and b in [E. Ozcag, I. Ege, H. Gurcay, An extension of the incomplete beta ...
Sequentially Dinormal Ditopological Texture Spaces And Dimetrizability
(Elsevier Science Bv, 2008)
The authors extend the bitopological notion of sequential normality to ditopological texture spaces, and use this notion to state and prove a (pseudo-)dimetrizability theorem. (C) 2008 Elsevier B.V. All rights reserved.
An Extension of the Incomplete Beta Function For Negative Integers
(Academic Press Inc Elsevier Science, 2008)
The incomplete beta function B-x(a, b) is defined for a, b > 0 and 0 < x < 1. Its definition can be extended, by regularization, to negative non-integer values of a and b. In this paper we define the incomplete beta function ...
Generalized Semicommutative Rings And Their Extensions
(Korean Mathematical Soc, 2008)
For an endomorphism a of a ring R., the endomorphism a is called semicommutative if ab = 0 implies a Ha(b) = 0 for a is an element of R. A ring R is called alpha-semicommulative if there exists a semicommutative endomorphism ...
A Generalization of Projective Covers
(Academic Press Inc Elsevier Science, 2008)
Let M be a left module over a ring R and I an ideal of R. We call (P, f) a projective I-cover of M if f is an epimorphism from P to M, P is projective, Ker f subset of I P, and whenever P = Ker f + X, then there exists a ...
Synthesis, Characterization and Optical Limiting Properties of Novel Ball-Type Four Tert-Butylcalix[4]Arene Bridged Double-Decker Lutetium(III) and Indium(III) Phthalocyanines
(Scimago, 2008)
Novel ball type four tert-butylcalix[4]arene bridged double-decker lutetium(III) phthalocyanine [LuPc2(tbca)4] 2 which exhibit nonlinear optical limiting behaviour and indium(III) phthalocyanine [InPc2(tbca)4] 3 were ...