%0 Journal Article %A P N Natarajan %T Characterization of the matrix class ( α , β ), 0 < α ≤ β ≤ 1 %J Filomat %D 2021 %P 4451 %V 35 %N 13 %U http://geodesic.mathdoc.fr/articles/10.2298/FIL2113451N/ %R 10.2298/FIL2113451N %G en %F 10_2298_FIL2113451N