4 Results Found

In this study, the concept of Riesz summability for interval-valued series is introduced, and the corresponding interval-valued Riesz-summable series space $R_I^{cs}$ is constructed. In contrast to the sequence setting, Riesz summability of an interval-val...

Fuzzy parameterized fuzzy hypersoft set ($\Delta$-set) is more flexible and reliable model as it is capable of tackling features such as the assortment of attributes into their relevant subattributes and the determination of vague nature of parameters...

Let $f\left(n\right)$ be an Erdős–Ulam function satisfying $f(n+1)/f\left(n\right)\to 1$ as $n\to \infty$, and let ${\mathbf{A}}_f$ denote the associated Riesz matrix. Furthermore, let ${\mathbf{A}}_{f^{*}}$ be the Riesz matrix generated by the weights $f\left(n\right)/\left(f\left(1\right)+f\left(2\right)+\cdots +f\left(n\right)\right)$, $n\ge 1$. The m...

A general notion of a weakly symmetric continuous linear functional on a Banach space, in the case where the space is ${\ell }_1$ (i.e., the space of all absolutely summable sequences of complex numbers), reduces to a continuous linear functional whose...