Bregman distances, totally convex functions, and a method for solving operator equations in Banach spaces. Butnariu, Dan; Resmerita, Elena — 2006 Abstract and Applied Analysis
Total convexity for powers of the norm in uniformly convex Banach spaces. Butnariu, Dan; Iusem, Alfredo N.; Resmerita, Elena — 2000 Journal of Convex Analysis