[PDF][PDF] Some properties of fuzzy Hilbert spaces and norm of operators

A Hasankhani, A Nazari, M Saheli - 2010 - sid.ir
In the present paper we define the notion of fuzzy inner product and study the properties of
the corresponding fuzzy norm. In particular, it is shown that the Cauchy-Schwarz inequality …

[PDF][PDF] weak Contractions in Fuzzy Metric Spaces

M Abbas, M Imdad, D Gopal - Iranian Journal of Fuzzy Systems, 2011 - ijfs.usb.ac.ir
In this paper, the notion of $\psi-$ weak contraction\cite {Rhoades} isextended to fuzzy
metric spaces. The existence of common fixed points fortwo mappings is established where …

[PDF][PDF] Some fixed point theorems for single and multi valued mappings on ordered non-Archimedean fuzzy metric spaces

I Altun - Iranian Journal of Fuzzy Systems, 2010 - ijfs.usb.ac.ir
SOME FIXED POINT THEOREMS FOR SINGLE AND MULTI VALUED MAPPINGS ON
ORDERED NON-ARCHIMEDEAN FUZZY METRIC SPACES 1. Introduction an Page 1 Iranian …

[PDF][PDF] On compactness and G-completeness in fuzzy metric spaces

P Tirado - Iranian Journal of Fuzzy Systems, 2012 - ijfs.usb.ac.ir
In [Fuzzy Sets and Systems 27 (1988) 385-389], M. Grabiec in-troduced a notion of
completeness for fuzzy metric spaces (in the sense of Kramosil and Michalek) that …

[PDF][PDF] Common fixed point theorem in partially ordered-fuzzy metric spaces

S Shakeri, LJB Ćirić, R Saadati - Fixed Point Theory and Applications, 2010 - Springer
Research Article Common Fixed Point Theorem in Partially Ordered L-Fuzzy Metric Spaces
Page 1 Hindawi Publishing Corporation Fixed Point Theory and Applications Volume 2010 …

[PDF][PDF] A fixed point approach to the intuitionistic fuzzy stability of quintic and sextic functional equations

TZ Xu, MJ Rassias, XW XU, JM Rassias - 2012 - sid.ir
The fixed point alternative methods are implemented to give Hyers-Ulam stability for the
QUINTIC FUNCTIONAL EQUATION f (x+ 3y)-5f (x+ 2y)+ 10f (x+ y)-10f (x)+ 5f (xy)-f (x-2y) …

[PDF][PDF] Best simultaneous approximation in fuzzy normed spaces

M Goudarzi, SM Vaezpour - 2010 - sid.ir
The main purpose of this paper is to consider the t-best simultaneous approximation in fuzzy
normed spaces. We develop the theory of t-best simultaneous approximation in quotient …

[PDF][PDF] Stability of the sextic functional equation in various spaces

S Alshybani, SM Vaezpour, R Saadati - J. Inequal. Spec. Funct, 2018 - ilirias.com
In this paper, we have established generalized Hyers-Ulam stability of the following sextic
functional equation f (nx+ y)+ f (nx− y)+ f (x+ ny)+ f (x− ny)=(n4+ n2)[f (x+ y)+ f (x− y)]+ 2 (n6 …

[PDF][PDF] Fixed point theory for cyclic -contractions in fuzzy metric spaces

Y Shen, D Qiu, W Chen - Iranian Journal of Fuzzy Systems, 2013 - ijfs.usb.ac.ir
In this paper, the notion of cyclic $\varphi $-contraction in fuzzymetric spaces is introduced
and a fixed point theorem for this typeof mapping is established. Meantime, an example is …

Modified k-step method for solving fuzzy initial value problems

O Solaymani Fard, A Vahidian Kamyad - Iranian Journal of Fuzzy …, 2011 - ijfs.usb.ac.ir
We are concerned with the development of a K− step method for the numerical solution of
fuzzy initial value problems. Convergence and stability of the method are also proved in …