@article { author = {}, title = {-}, journal = {Journal of Sciences, Islamic Republic of Iran}, volume = {18}, number = {1}, pages = {-}, year = {2007}, publisher = {University of Tehran}, issn = {1016-1104}, eissn = {2345-6914}, doi = {}, abstract = {This paper is concerned with the problem of finding a lower bound for certain matrix operators such as Hausdorff and Hilbert matrices on sequence spaces lp(w) and Lorentz sequence spaces d(w,p), which is recently considered in [7,8], similar to [13] considered by J. Pecaric, I. Peric and R. Roki. Also, this study is an extension of some works which are studied before in [1,2,7,8].}, keywords = {}, url = {https://jsciences.ut.ac.ir/article_30996.html}, eprint = {https://jsciences.ut.ac.ir/article_30996_e6e4cef7d830cf9d6587ef2366b997e4.pdf} }