Upper and lower \alpha (\mu_{X};\mu_{ Y} )-continuous multifunctions
M
Akdag
Cumhuriyet University Science Faculty Department of Mathematics
58140 S_IVAS / TURKEY.
author
F
Erol
Cumhuriyet University Science Faculty Department of Mathematics
58140 S_IVAS / TURKEY.
author
text
article
2015
eng
In this paper, a new class of multifunctions, called generalized \alpha (\mu_{X};\mu_{ Y} )-continuous multifunctions, has been dened and studied. Some characterizations and severalproperties concerning generalized \alpha (\mu_{X};\mu_{ Y} )-continuous multifunctions are obtained. The re-lationships between generalized \alpha (\mu_{X};\mu_{ Y} )-continuous multifunctions and some known con-cepts are also discussed.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
04
v.
01
no.
2015
1
9
http://jlta.iauctb.ac.ir/article_513810_ee0fd50351b16789fd9107c0732b9cab.pdf
Characterization of G2(q), where 2 < q = 1(mod3) by order components
P
. Nosratpour
Department of Mathematics, Ilam Branch,
Islamic Azad University, Ilam, Iran.
author
text
article
2015
eng
In this paper we will prove that the simple group G2(q) where 2 < q = 1(mod3)is recognizable by the set of its order components, also other word we prove that if G is anite group with OC(G) = OC(G2(q)), then G is isomorphic to G2(q).
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
04
v.
01
no.
2015
11
23
http://jlta.iauctb.ac.ir/article_513811_9eba341c74bd3045dee87b9bd0cdef4e.pdf
Frames for compressed sensing using coherence
L.
Gavruta
Politehnica University of Timisoara, Department of Mathematics,
Piata Victoriei no.2, 300006 Timisoara, Romania;
author
G
Zamani Eskandani
Faculty of Sciences, Department of Mathematics, University of Tabriz,
Tabriz, Iran.
author
P
Gavruta
Politehnica University of Timisoara, Department of Mathematics,
Piata Victoriei no.2, 300006 Timisoara, Romania;
author
text
article
2015
eng
We give some new results on sparse signal recovery in the presence of noise, forweighted spaces. Traditionally, were used dictionaries that have the norm equal to 1, but, forrandom dictionaries this condition is rarely satised. Moreover, we give better estimationsthen the ones given recently by Cai, Wang and Xu.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
04
v.
01
no.
2015
25
34
http://jlta.iauctb.ac.ir/article_513812_d615ca1c21b4cd708b5612bb7022dc99.pdf
The solutions to some operator equations in Hilbert C*-module
M
Mohammadzadeh Karizaki
Department of Mathematics, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
author
M
Hassani
Department of Mathematics, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
author
text
article
2015
eng
In this paper, we state some results on product of operators with closed rangesand we solve the operator equation TXS*- SX*T*= A in the general setting of theadjointable operators between Hilbert C*-modules, when TS = 1. Furthermore, by usingsome block operator matrix techniques, we nd explicit solution of the operator equationTXS*- SX*T*= A.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
04
v.
01
no.
2015
35
42
http://jlta.iauctb.ac.ir/article_513813_951b3470a1795ef1334304ce53162f13.pdf
Numerical solution of Fredholm integral-dierential equations on unbounded domain
M
Matinfar
Department of Mathematics, University of Mazandaran, Babolsar,
PO. Code 47416-95447, Iran;
author
A
Riahifar
Department of Mathematics, Islamic Azad University, Chalus Branch,
PO. Code 46615-397, Iran.
author
text
article
2015
eng
In this study, a new and ecient approach is presented for numerical solution ofFredholm integro-dierential equations (FIDEs) of the second kind on unbounded domainwith degenerate kernel based on operational matrices with respect to generalized Laguerrepolynomials(GLPs). Properties of these polynomials and operational matrices of integration,dierentiation are introduced and are ultilized to reduce the (FIDEs) to the solution ofa system of linear algebraic equations with unknown generalized Laguerre coecients. Inaddition, two examples are given to demonstrate the validity, eciency and applicability ofthe technique.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
04
v.
01
no.
2015
43
52
http://jlta.iauctb.ac.ir/article_513814_a72d44cf0986fe41d522e4eb91500748.pdf
On duality of modular G-Riesz bases and G-Riesz bases in Hilbert C*-modules
M
Rashidi-Kouchi
Young Researchers and Elite Club
Kahnooj Branch, Islamic Azad University, Kerman, Iran.
author
text
article
2015
eng
In this paper, we investigate duality of modular g-Riesz bases and g-Riesz basesin Hilbert C*-modules. First we give some characterization of g-Riesz bases in Hilbert C*-modules, by using properties of operator theory. Next, we characterize the duals of a giveng-Riesz basis in Hilbert C*-module. In addition, we obtain sucient and necessary conditionfor a dual of a g-Riesz basis to be again a g-Riesz basis. We nd a situation for a g-Rieszbasis to have unique dual g-Riesz basis. Also, we show that every modular g-Riesz basis is ag-Riesz basis in Hilbert C*-module but the opposite implication is not true.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
04
v.
01
no.
2015
53
63
http://jlta.iauctb.ac.ir/article_513815_1265191a1504d3221d0d238b3de41d30.pdf
Fixed Point Theorems for semi \lambda-subadmissible Contractions in b-Metric spaces
R.J
Shahkoohi
Department of Mathematics, Science and Research Branch,
Islamic Azad University, Tehran, Iran.
author
A
Razani
Department of Mathematics, Science and Research Branch,
Islamic Azad University, Tehran, Iran.
author
text
article
2015
eng
Here, a new certain class of contractive mappings in the bmetric spaces is intro-duced. Some xed point theorems are proved which generalize and modify the recent resultsin the literature. As an application, some results in the bmetric spaces endowed with apartial ordered are proved.
Journal of Linear and Topological Algebra (JLTA)
Central Tehran Branch. IAU
2252-0201
04
v.
01
no.
2015
65
85
http://jlta.iauctb.ac.ir/article_513816_39494436ccf276e6a17420f6d565b1e1.pdf