Guram Bezhanishvili, David Gabelaia, Joel Lucero-Bryan. Topological completeness of extensions of S4. In Nikolaos Galatos, Alexander Kurz, Constantine Tsinakis, editors, TACL 2013. Sixth International Conference on Topology, Algebra and Categories in Logic, Vanderbilt University, Nashville, Tennessee, USA, July 28 - August 1, 2013. Volume 25 of EPiC Series, pages 27-30, EasyChair, 2013. [doi]
Abstract is missing.