Mj. Sevilla et Jp. Moreno, THE MAZUR INTERSECTION PROPERTY AND ASPLUND SPACES, Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 321(9), 1995, pp. 1219-1223
We answer a question posed by J. R. Giles, D. A. Gregory and B. Sims,
on the Mazur intersection property, by exhibiting a class of non Asplu
nd spaces admitting an equivalent norm with the above property. On the
other hand, if the continuum hypothesis is assumed, we find an Asplun
d space admitting no equivalent norm with the Mazur intersection prope
rty and whose dual space admits no equivalent norm with the weak Maz
ur intersection property.