Rifat Çolak

λ-Difference sequence spaces of fuzzy numbers

In this paper, using the difference operator of order m and an Orlicz function, we introduce and examine some classes of sequences of fuzzy numbers. We give the relations between the strongly Cesaro type convergence and statistical convergence in these spaces. Furthermore, we study some of their properties like completeness, solidity, symmetricity, etc. We also give some inclusion relations related to these classes.

Some Geometric Inequalities in a New Banach Sequence Space

The difference sequence space, which is a generalization of the space introduced and studied by Sargent (1960), was defined by Çolak and Et (2005). In this paper we establish some geometric inequalities for this space.

On some sets of difference sequences of fuzzy numbers

In this paper we define the sequence space

Statistical Convergence of Order α for Difference Sequences

{w}_{{\mathcal{F}}}\left(f,p,\Updelta\right)

\lambda _{d}-Statistical Convergence, \lambda _{d}-statistical Boundedness and Strong \left( V,\lambda \right) _{d}-summability in Metric Spaces

which is called the space of strongly

I2(u)-convergence of double sequences of order(α,β)

\Updelta p