@article {10.3844/jmssp.2019.79.85,
article_type = {journal},
title = {S-Numbers of Weighted Shift Operators on P-Summable Formal Entire Functions of M-Variables},
author = {Faried, Nashat and Hassanain, Z.A. and Abd El Ghaffar, H. and Lokman, A.},
volume = {15},
year = {2019},
month = {May},
pages = {79-85},
doi = {10.3844/jmssp.2019.79.85},
url = {https://thescipub.com/abstract/jmssp.2019.79.85},
abstract = {The idea of multiplying a formal Taylor power series by z to make a right shift operator on the space of all square summable sequences of real numbers was due to A.L. Shield. In this work, we consider Taylor power series in m-variables and we give upper and lower estimations of s-numbers for multiplication of m- right weighted shift operators. This allowed us to estimate upper bounds for s-numbers of infinite series of m-right weighted shift operators and give some applications.},
journal = {Journal of Mathematics and Statistics},
publisher = {Science Publications}
}