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math.LO2004★ 2 cited
Forcing with quotients
Michael Hrusak, Jindrich Zapletal
We study an extensive connection between factor forcings of Borel subsets of Polish spaces modulo a sigma-ideal, and factor forcings of subsets of countable sets modulo an ideal.
math.LO2004
Between Maharam's and von Neumann's problems
Ilijas Farah, Jindrich Zapletal
If I is a suitably definable sigma-ideal on the real line and the factor algebra of Borel sets modulo I is weakly distributive then the algebra carries a Maharam submeasure.