OTHERS_CITABLE
On C3-Like Finsler Metrics
In this paper, we study the class of of C3-like Finsler metrics which contains the class of semi-C-reducible Finsler metric. We find a condition on C3-like metrics under which the notions of Landsberg curvature and mean Landsberg curvature are equivalent.
http://ijmsi.ir/article-1-283-en.pdf
2015-10-26T10:20:15
1
6
10.7508/ijmsi.2012.01.001
Finsler metric
C3-like metric
semi-C-reducible metric.
A.
Tayebi
1
AUTHOR
E.
Peyghan
2
AUTHOR
OTHERS_CITABLE
F-Permutations induce Some Graphs and Matrices
In this paper, by using the notion of fuzzy subsets, the concept of F-permutation is introduced. Then by applying this notion the concepts of presentation of an F-polygroup, graph of an F-permutation and F-permutation matrices are investigated.
http://ijmsi.ir/article-1-284-en.pdf
2015-10-26T10:20:15
7
20
10.7508/ijmsi.2012.01.002
(Minimal) Sub fuzzy permutation
Weighted directed graph.
A.
Hasankhani
1
AUTHOR
N.
Shajareh-Poursalavati
2
AUTHOR
OTHERS_CITABLE
Common Fixed Points and Invariant Approximations for Cq-commuting Generalized nonexpansive mappings
Some common fixed point theorems for Cq-commuting generalized nonexpansive mappings have been proved in metric spaces. As applications, invariant approximation results are also obtained. The results proved in the paper extend and generalize several known results including those of M. Abbas and J.K. Kim [Bull. Korean Math. Soc. 44(2007) 537-545], I. Beg, N. Shahzad and M. Iqbal [Approx. Theory Appl. 8(1992) 97-105], W.G. Dotson [J. London Math. Soc. 4(1972) 408-410 Proc. Amer. Math. Soc. 38(1973) 155-156.], M. D. Guay, K. L. Singh and J. H. M. Whitfield [Proc. Conference on nonlinear analysis (Ed. S.P.Singh and J. H. Bury) Marcel Dekker 80(1982) 179-189], L. Habiniak [J. Approx. Theory 56(1989) 241-244], N. Hussain and B.E. Rhoades [Fixed Point Theory Appl. Vol. 2006, Article ID 24543, 1-9], T.D. Narang and S. Chandok [Indian J. Math. 51(2009) 293-303 Ukrainian Math. J. 62 (2010) 1367-1376], N. Shahzad [Fixed point Theory Appl. 1(2005) 79-86] and of Y. Song [Comm. Math. Anal. 2(2007) 17-26].
http://ijmsi.ir/article-1-285-en.pdf
2015-10-26T10:20:15
21
34
10.7508/ijmsi.2012.01.003
Convex metric space
convex set
starshaped set
best approximation
affine mapping
hemicompact mapping
R-subweakly commuting and Cq-commuting mappings.
Sumit
Chandok
1
AUTHOR
T. D.
Narang
2
AUTHOR
OTHERS_CITABLE
Constructing Finite Frames via Platonic Solids
Finite tight frames have many applications and some interesting physical interpretations. One of the important subjects in this area is the ways for constructing such frames. In this article we give a concrete method for constructing finite normalized frames using Platonic solids.
http://ijmsi.ir/article-1-286-en.pdf
2015-10-20T10:20:15
35
42
10.7508/ijmsi.2012.01.004
finite frame
tight frame
normalized frame
platonic solids.
Ahmad
Safapour
1
AUTHOR
Maryam
Shafiee
2
AUTHOR
OTHERS_CITABLE
Stability and numerical solution of time variant linear systems with delay in both the state and control
In this paper, stability for uncertain time variant linear systems with time delay is studied. A new sufficient condition for delay-dependent systems is given in matrix inequality form which depends on the range of delay. Then, we introduce a new direct computational method to solve delay systems. This method consists of reducing the delay problem to a set of algebraic equations by first expanding the candidate function as hybrid functions with unknown coefficients. By using collocation method, the coefficients of the hybrid functions are obtained. Some numerical examples are given to illustrate and compare our results with other existing methods in the literature.
http://ijmsi.ir/article-1-294-en.pdf
2015-10-26T10:20:15
43
57
10.7508/ijmsi.2012.01.005
Stability
Time delay
Lyapunov-Krasovskii functional
Uncertainty
Hybrid
Gauss Legendre nodes.
Salameh
Sedaghat
1
AUTHOR
Yadollah
Ordokhani
2
AUTHOR
OTHERS_CITABLE
R-parts in hyperrings
In this article, first we generalize the concept of complete parts in hyperrings by introducing the concept R-parts in hyperrings and then we study R-closures in hyperrings. Finally we characterize R-closures in hyperfields.
http://ijmsi.ir/article-1-287-en.pdf
2015-10-26T10:20:15
59
71
10.7508/ijmsi.2012.01.006
hyperrings
(semi)hypergroups
complete parts.
H.
Babaei
1
AUTHOR
M.
Jafarpour
2
AUTHOR
S. Sh.
Mousavi
3
AUTHOR
OTHERS_CITABLE
A Note on Tensor Product of Graphs
Let $G$ and $H$ be graphs. The tensor product $Gotimes H$ of $G$ and $H$ has vertex set $V(Gotimes H)=V(G)times V(H)$ and edge set $E(Gotimes H)={(a,b)(c,d)| acin E(G):: and:: bdin E(H)}$. In this paper, some results on this product are obtained by which it is possible to compute the Wiener and Hyper Wiener indices of $K_n otimes G$.
http://ijmsi.ir/article-1-288-en.pdf
2015-10-26T10:20:15
73
81
10.7508/ijmsi.2012.01.007
Tensor product
connected graph
bipartite graph
Wiener index
hyper Wiener index.
Sirous
Moradi
1
AUTHOR
OTHERS_CITABLE
New results on p-Carleson measures and some related measures in the unit disk
We provide some new sharp embeddings for p-Carleson measures and some related measures in the unit disk of the complex plane.
http://ijmsi.ir/article-1-292-en.pdf
2015-10-26T10:20:15
83
90
10.7508/ijmsi.2012.01.008
p-Carleson measures
analytic function
Carleson box.
Romi
Shamoyan
1
AUTHOR
Ali
Abkar
2
AUTHOR
OTHERS_CITABLE
Characterizations of the simple group $D_{n}(3)$ by prime graph and spectrum
We prove that $D_n(3)$, where $ngeq6$ is even, is uniquely determined by its prime graph. Also, if $G$ is a finite group with the same prime graph as $D_4(3)$, then $Gcong D_4(3), B_3(3), C_3(3)$ or $G/O_2(G)cong {rm Aut}({}^2B_2(8))$.
http://ijmsi.ir/article-1-306-en.pdf
2015-10-26T10:20:15
91
106
10.7508/ijmsi.2012.01.009
Characterization
prime graph
the classification theorem of finite simple group
spectrum.
M.
Foroudi Ghasemabadi
1
AUTHOR
N.
Ahanjideh
2
AUTHOR