Isbell Adjunctions and Kan Adjunctions via Quantale-Enriched Two-Variable Adjunctions Lili ShenXiaoye Tang OriginalPaper 02 August 2021 Pages: 223 - 245
A New Diagonal Separation and its Relations With the Hausdorff Property Igor ArrietaJorge PicadoAleš Pultr OriginalPaper 27 July 2021 Pages: 247 - 263
On the De Morgan’s Laws for Modules Mauricio Medina-BárcenasMartha Lizbeth Shaid Sandoval-MirandaÁngel Zaldívar-Corichi OriginalPaper 17 July 2021 Pages: 265 - 286
Categorical Extension of Dualities: From Stone to de Vries and Beyond, I Georgi DimovElza Ivanova-DimovaWalter Tholen OriginalPaper 06 August 2021 Pages: 287 - 329
Split Extensions and Actions of Bialgebras and Hopf Algebras Florence Sterck OriginalPaper 16 October 2021 Pages: 331 - 377
Pseudo-Dualizing Complexes of Bicomodules and Pairs of t-Structures Leonid Positselski OriginalPaper 15 October 2021 Pages: 379 - 416