4 papers
The simplicial volume of mapping tori of 3-manifolds
Michelle Bucher, Christoforos Neofytidis
We prove that any mapping torus of a closed 3-manifold has zero simplicial volume. When the fiber is a prime 3-manifold, classification results can be applied to show vanishing of…
Virtual Betti numbers of mapping tori of 3-manifolds
Christoforos Neofytidis
Given a reducible -manifold with an aspherical summand in its prime decomposition and a homeomorphism , we construct a map of degree one from a finite cover…
Steenrod problem and the domination relation
Jean-François Lafont, Christoforos Neofytidis
We indicate how to combine some classical topology (Thom's work on the Steenrod problem) with some modern topology (simplicial volume) to show that every map between certain manifo…
Anosov diffeomorphisms of products II. Aspherical manifolds
Christoforos Neofytidis
We study aspherical manifolds that do not support Anosov diffeomorphisms. Weakening conditions of Gogolev and Lafont, we show that the product of an infranilmanifold with finitely…