3 papers
math.CT2026
The span-squares adjunction
George Raptis, Wolfgang Steimle
We show a universal property of the span -category that yields a description of functors defined on this category. For this, we view the span construction as a functor from…
math.AT2025
The Serre spectral sequence in bounded cohomology
Kevin Li, Marco Moraschini, George Raptis
We construct the analogue of the Serre spectral sequence for the bounded cohomology of simplicial sets with seminormed local coefficients. As applications, we obtain a (non-isometr…
math.AT2024
Some remarks on acyclicity in bounded cohomology
Marco Moraschini, George Raptis
We show that a surjective homomorphism of (discrete) groups induces an isomorphism in bounded cohomology for a…