In this paper we introduce the backward operator is $\nabla$ and study the notion of $\nabla-$ statistical convergence and $\nabla-$ statistical Cauchy sequence using by almost $\left(\lambda_{m}\mu_{n}\right)$ convergence in $\chi^{2}-$Riesz space and also some inclusion theorems are discussed.
@article{31971,
title = {The backward operator of double almost $\left(\lambda\_{m}\mu\_{n}\right)$ convergence in $\chi^{2}-$Riesz space defined by a Musielak-Orlicz function},
journal = {Boletim da Sociedade Paranaense de Matem\'atica},
volume = {37},
year = {2017},
doi = {10.5269/bspm.v37i3.31971},
language = {EN},
url = {http://dml.mathdoc.fr/item/31971}
}
Subramanian, Nagarajan; Esi, Ayhan. The backward operator of double almost $\left(\lambda_{m}\mu_{n}\right)$ convergence in $\chi^{2}-$Riesz space defined by a Musielak-Orlicz function. Boletim da Sociedade Paranaense de Matemática, Tome 37 (2017) . doi : 10.5269/bspm.v37i3.31971. http://gdmltest.u-ga.fr/item/31971/