We prove that for a Frobenius extension,a module over the extension ring is Gorenstein projective if and only if its underlying module over the base ring is Gor
The paper is devoted to the study of rational proper holomorphic maps from the unit ball B~n to the unit ball B~N. We classify these maps with both the geometri
Various forms of penalized estimators with good statistical and computational properties have been proposed for variable selection respecting the grouping struc