notes -tree-deleting an item deletion of key from -tree is possiblehoweverspecial care must be taken to ensure that the properties of -tree are maintained several cases must be considered if the deletion reduces the number of keys in node below the minimum degree of the treethis violation must be corrected by combining several nodes and possibly reducing the height of the tree if the key has childrenthe children must be rearranged in the -tree as we left it at the end of the last sectiondelete of coursewe first do lookup to find since is in leaf and the leaf has more than the minimum number of keysthis is easy we move the over where the had been and the over where the had been this givesnextdelete the since is not in leafwe find its successor (the next item in ascending order)which happens to be wand move up to replace the that waywhat we really have to do is to delete from the leafwhich we already know how to dosince this leaf has extra keys in all cases we reduce deletion to deletion in leafby using this method lovely professional university