%0 Journal Article %A MARY, J. STELLA IRENE %A PANAYAPPAN, S. %T SOME PROPERTIES OF CLASS A(k) OPERATORS AND THEIR HYPONORMAL TRANSFORMS %J Glasgow mathematical journal %D 2007 %P 133-143 %V 49 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089507003497/ %R 10.1017/S0017089507003497 %F 10_1017_S0017089507003497