Solved and unsolved problems in generalized notions of Connes amenability
A
Mahmoodi Kebriya
Department of Mathematics, Faculty of Science, Islamic Azad University,
Central Tehran Branch, Tehran, Iran
author
text
article
2013
eng
We survey the recent investigations on (bounded, sequential) approximate Connesamenability and pseudo-Connes amenability for dual Banach algebras. We will discuss thecore problems concerning these notions and address the signicance of any solutions to themto the development of the eld.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
02
v.
01
no.
2013
1
7
http://jlta.iauctb.ac.ir/article_514234_4c8d9fa9aaccb6576d0fc86566973078.pdf
The extension of quadrupled xed point results in K-metric spaces
G
Soleimani Rad
Young Researchers and Elite club, Central Tehran Branch,
Islamic Azad University, Tehran, Iran.
Department of Mathematics, Faculty of Science, Islamic Azad University,
Central Tehran Branch, PO. Code 13185-768, Tehran, Iran.
author
text
article
2013
eng
Recently, Rahimi et al. [Comp. Appl. Math. 2013, In press] dened the conceptof quadrupled xed point in K-metric spaces and proved several quadrupled xed pointtheorems for solid cones on K-metric spaces. In this paper some quadrupled xed point resultsfor T-contraction on K-metric spaces without normality condition are proved. Obtainedresults extend and generalize well-known comparable results in the literature.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
02
v.
01
no.
2013
9
23
http://jlta.iauctb.ac.ir/article_514235_a92f5c539f503b402632a39176e6c45f.pdf
G-Frames, g-orthonormal bases and g-Riesz bases
S
S. Karimizad
Department of Mathematics, Faculty of Science, Islamic Azad University,
Central Tehran Branch, Tehran, Iran
author
text
article
2013
eng
G-Frames in Hilbert spaces are a redundant set of operators which yield a repre-sentation for each vector in the space. In this paper we investigate the connection betweeng-frames, g-orthonormal bases and g-Riesz bases. We show that a family of bounded opera-tors is a g-Bessel sequences if and only if the Gram matrix associated to its denes a boundedoperator.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
02
v.
01
no.
2013
25
33
http://jlta.iauctb.ac.ir/article_514236_f51fb20a99740375e57204585ff2e228.pdf
Stochastic Non-Parametric Frontier Analysis
M
Rahmani
Department of Mathematics, Science and Research Branch,
Islamic Azad University, Tehran. Iran.
author
Gh
jahanshahloo
Department of Mathematics, Science and Research Branch,
Islamic Azad University, Tehran. Iran.
author
text
article
2013
eng
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
02
v.
01
no.
2013
35
49
http://jlta.iauctb.ac.ir/article_514253_d41d8cd98f00b204e9800998ecf8427e.pdf
Expansion of Bessel and g-Bessel sequences to dual frames and dual g-frames
M. S
Asgari
Department of Mathematics, Science and Research Branch,
Islamic Azad University, Tehran. Iran.
author
G
Kavian
Department of Mathematics, Science and Research Branch,
Islamic Azad University, Tehran. Iran.
author
text
article
2013
eng
In this paper we study the duality of Bessel and g-Bessel sequences in Hilbertspaces. We show that a Bessel sequence is an inner summand of a frame and the sum of anyBessel sequence with Bessel bound less than one with a Parseval frame is a frame. Next wedevelop this results to the g-frame situation.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
02
v.
01
no.
2013
51
57
http://jlta.iauctb.ac.ir/article_514254_149bc3a6d8625b59d77402ec7844e9b2.pdf
Computation of the q-th roots of circulant matrices
M
Amirfakhrian
Department of Mathematics, Faculty of Science, Islamic Azad University,
Central Tehran Branch, PO. Code 14168-94351,
Tehran, Iran
author
P
Mohammadi Khanghah
Department of Mathematics, Faculty of Science, Islamic Azad University,
Central Tehran Branch, PO. Code 14168-94351,
Tehran, Iran
author
text
article
2013
eng
In this paper, we investigate the reduced form of circulant matrices and we showthat the problem of computing the q-th roots of a nonsingular circulant matrix A can bereduced to that of computing the q-th roots of two half size matrices B C and B + C.c
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
02
v.
01
no.
2013
59
65
http://jlta.iauctb.ac.ir/article_514255_467fcc5ff607cd7146f221b5f8235f69.pdf