2018-12-14T22:13:10Z
http://jlta.iauctb.ac.ir/?_action=export&rf=summon&issue=110009
Journal of Linear and Topological Algebra (JLTA)
J. Linear. Topological. Algebra.
2252-0201
2252-0201
2014
03
02
On the construction of symmetric nonnegative matrix with prescribed Ritz values
A. M.
Nazaria
E.
Afshari
In this paper for a given prescribed Ritz values that satisfy in the some special conditions, we find a symmetric nonnegative matrix, such that the given set be its Ritz values.
Ritz values
Nonnegative matrix
2014
09
25
61
66
http://jlta.iauctb.ac.ir/article_510034_517ebe681c6b757bb36fe9cb83632347.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear. Topological. Algebra.
2252-0201
2252-0201
2014
03
02
Existence and uniqueness of solution of Schrodinger equation in extended Colombeau algebra
M.
Alimohammady
F.
Fattahi
In this paper, we establish the existence and uniqueness result of the linear Schrodinger equation with Marchaud fractional derivative in Colombeau generalized algebra. The purpose of introducing Marchaud fractional derivative is regularizing it in Colombeau sense.
Colombeau algebra
Marchaud fractional differentiation
Schrodinger equation
2014
10
01
67
78
http://jlta.iauctb.ac.ir/article_510035_c42bfbefe2796bde0219537ed06d07d8.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear. Topological. Algebra.
2252-0201
2252-0201
2014
03
02
Product of normal edge-transitive Cayley graphs
A.
Assari
For two normal edge-transitive Cayley graphs on groups H and K which have no common direct factor and $gcd(|H/H^prime|,|Z(K)|)=1=gcd(|K/K^prime|,|Z(H)|)$, we consider four standard products of them and it is proved that only tensor product of factors can be normal edge-transitive.
Cayley graph
Normal edge-transitive
Product of graphs
2014
09
27
79
85
http://jlta.iauctb.ac.ir/article_510036_f4bda704af5dbd54e675114b68316877.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear. Topological. Algebra.
2252-0201
2252-0201
2014
03
02
Compact composition operators on real Banach spaces of complex-valued bounded Lipschitz functions
D.
Alimohammadi
S.
Sefidgar
We characterize compact composition operators on real Banach spaces of complex-valued bounded Lipschitz functions on metric spaces, not necessarily compact, with Lipschitz involutions and determine their spectra.
Compact operator
composition operator
Lipschitz function
Lipschitz involution
spectrum of an operator
2014
10
12
87
105
http://jlta.iauctb.ac.ir/article_510037_f2807132f12a90eefbbe6c9c8d6fd72c.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear. Topological. Algebra.
2252-0201
2252-0201
2014
03
02
Hereditary properties of amenability modulo an ideal of Banach algebras
H.
Rahimi
E.
Tahmasebi
In this paper we investigate some hereditary properties of amenability modulo an ideal of Banach algebras. We show that if $(e_alpha)_alpha$ is a bounded approximate identity modulo I of a Banach algebra A and X is a neo-unital modulo I, then $(e_alpha)_alpha$ is a bounded approximate identity for X. Moreover we show that amenability modulo an ideal of a Banach algebra A can be only considered by the neo-unital modulo I Banach algebra over A.
Amenability modulo an ideal
Neo-unital modulo an ideal
Approximate identity modulo an ideal
2014
10
04
107
114
http://jlta.iauctb.ac.ir/article_510038_8025eb73aea7884a257164413c18764c.pdf
Journal of Linear and Topological Algebra (JLTA)
J. Linear. Topological. Algebra.
2252-0201
2252-0201
2014
03
02
A generalized cost Malmquist index to compare the productivities of units with negative data in DEA
G.
Tohidi
S.
Razavyan
S.
Tohidnia
In some data envelopment analysis (DEA) applications, some inputs of DMUs have negative values with positive cost. This paper generalizes the global cost Malmquist productivity index to compare the productivity of dierent DMUs with negative inputs in any two periods of times under variable returns to scale (VRS) technology, and then the generalized index is decomposed to several components. The obtained components are computed using the nonparametric linear programming models, known as DEA. To illustrate the generalized index and its components, a numerical example at three successive periods of time is given.
Malmquist Index
Circularity
Data envelopment analysis (DEA)
Cost efficiency
Returns to scale (VRS)
Negative data
2014
09
29
115
120
http://jlta.iauctb.ac.ir/article_510039_8dcc52652aa64f6e533c9e6440294fb1.pdf