A tree is said to be -magic if there exits a super magic labeling such that then the vertices of is partioned into three color classes , , so that the vertex labels in ∈ {1,2,3} are all consecutive labels. In this paper we have given -magic labeling of a class of trees with diameter four that...

Grocery retailers continuously work on improving their private label (PL) strategies. Research has repeatedly investigated various aspects of PL performance, but there is currently no holistic framework of PL choice integrating supply-side and demand-side factors in a multichannel retail...