Published online by Cambridge University Press:Â 24 September 2009
Let đ± be a complete discrete valuation ring of unequal characteristic with perfect residue field. Let be a separated smooth formal đ±-scheme, đ” be a normal crossing divisor of
,
be the induced formal log-scheme over đ± and
be the canonical morphism. Let X and Z be the special fibers of
and đ”, T be a divisor of X and â° be a log-isocrystal on
overconvergent along T, that is, a coherent left
-module, locally projective of finite type over
. We check the relative duality isomorphism:
. We prove the isomorphism
, which implies their holonomicity as
-modules. We obtain the canonical morphism Ïâ° : uT,+(â°)ââ°(â Z). When â° is moreover an isocrystal on
overconvergent along T, we prove that Ïâ° is an isomorphism.