%0 Journal Article %A Abe, Tomoyuki %T Explicit calculation of Frobenius isomorphisms and Poincaré duality in the theory of arithmetic ${\mathcal {D}}$-modules %J Rendiconti del Seminario Matematico della Università di Padova %D 2014 %P 89-150 %V 131 %I Seminario Matematico of the University of Padua %G en %F RSMUP_2014__131__89_0