Xing-Yu Hu

SPACES OF COMPACT OPEN SUBGROUPS AND OPEN MORPHISMS

Abstract For a morphism whose domain is a totally disconnected locally compact group, the openness test of Cowling, Hofmann and Morris [‘Open mappings of locally compact groups’, J. Group Theory 27 (6) (2024), 1143–1149] can be stated in terms of compact open subgroups. We use th...