16 citations · 24 across the 7 of their papers we have counts for
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math.GR2015
Groups of PL-homeomorphisms admitting non-trivial invariant characters
Daciberg L. Gonçalves, Parameswaran Sankaran, Ralph Strebel
We show that several classes of groups G of PL-homeomorphisms of the real line admit non-trivial homomorphisms from G to the additive group of reals that are fixed by every automor…
math.GR2015
Sigma 1 of PL-homeomorphism groups
Ralph Strebel
I survey the known results about the invariant Sigma 1 of groups of PL-homeomorphisms of a compact interval and supplement them with new results about Sigma 1 of PL-homeomorphism g…