8 citations · 25 across the 17 of their papers we have counts for
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math.GR2006★ 3 cited
A Class of Groups in Which All Unconditionally Closed Sets are Algebraic
Ol'ga V. Sipacheva
It is proved that, in certain subgroups of direct products of countable groups, the property of being an unconditionally closed set coincides with that of being an algebraic set. I…
math.GR2006★ 7 cited
Consistent solution of Markov's problem about algebraic sets
Ol'ga V. Sipacheva
It is proved that the continuum hypothesis implies the existence of a group M containing a nonalgebraic unconditionally closed set, i.e., a set which is closed in any Hausdorff gro…