%0 Journal Article %T Asymptotically convex Banach spaces and The Index of Rotundity Problem %A Francisco J Garc¨ªa-Pacheco %J Proyecciones (Antofagasta) %D 2012 %I Universidad Cat¨®lica del Norte %X The Index of Rotundity Problem asks whether a Banach space which admits equivalent renormings with index of rotundity as small as desired also admits an equivalent rotund renorming. In this paper we continue the ongoing search for a negative answer to this question by making use of a new concept: asymptotically convex Banach spaces. Some applications to The Approximation Hyperplane Series Property are given. %K Rotund %K renorming %K Banach space %U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-09172012000200001