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math.LO2018
Surjectively rigid chains
Mayra Montalvo-Ballesteros John Truss
We study rigidity properties of linearly ordered sets (chains) under automorphisms, order-embeddings, epimorphisms, and endomorphisms. We focus on two main cases, dense subchains o…
math.LO2018
Ehrenfeucht-Fraisse games on a class of scattered linear orders
Feresiano Mwesigye, John K. Truss
Two structures and are -equivalent if player II has a winning strategy in the -move Ehrenfeucht-Fraïssé game on and . In earlier papers we studied -equivale…