Department of Mathematics2024-11-1020150003-889X10.1007/s00013-015-0753-62-s2.0-84929953503http://dx.doi.org/10.1007/s00013-015-0753-6https://hdl.handle.net/20.500.14288/16905We consider a fixed contact 3-manifold that admits infinitely many compact Stein fillings which are all homeomorphic but pairwise non-diffeomorphic. Each of these fillings gives rise to a closed contact 5-manifold described as a contact open book whose page is the filling at hand and whose monodromy is the identity symplectomorphism. We show that the resulting infinitely many contact 5-manifolds are all diffeomorphic but pairwise non-contactomorphic. Moreover, we explicitly determine these contact 5-manifolds.MathematicsJournal Article1420-8938355209200007Q36142