Timothy Porter

1. Crossed squares and 2-crossed modules
   2002/10/30 by Ali Mutlu, A. Mutlu, T. Porter +3 · 1 citation
   Mathematics · #55U99 #Advanced Topics in Algebra #Algebraic Topology (math.AT) #Commutative Algebra (math.AC) #FOS: Mathematics #Homotopy and Cohomology in Algebraic Topology #K-Theory and Homology (math.KT) #Rings, Modules, and Algebras #math.AC #math.AT #math.KT #msc:55U99
2. Global actions, groupoid atlases and related topics
   2006/06/11 by Anthony Bak, Bak, A., Ronald Brown +5 · 1 citation
   Mathematics · Computer Science · #Geometric and Algebraic Topology #Homotopy and Cohomology in Algebraic Topology #semigroups and automata theory