On iteration stability of the Birkhoff center with respect to power 2 von Vlasenko, I.Yu., Polulyakh, E.O.

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Trees as set levels for pseudoharmonic functions in the plane. II von Polulyakh, E. O., Полулях, Є. О.

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Trees as Level Sets for Pseudoharmonic Functions in the Plane von Polulyakh, E. O., Полулях, Є. О.

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Kronrod–Reeb Graphs of Functions on Noncompact Two-Dimensional Surfaces. I von Polulyakh, E. O., Полулях, Е. А., Полулях, Е. А.

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Kronrod–Reeb Graphs of Functions on Noncompact Two-Dimensional Surfaces. II von Polulyakh, E. O., Полулях, Е. А., Полулях, Е. А.

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On a fiber bundle over a disk with the cantor set as a fiber von Polulyakh, E. O., Полулях, Е. А., Полулях, Е. А.

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On iteration stability of the Birkhoff center with respect to power 2 von Polulyakh, E. O., Vlasenko, I. Yu., Полулях, Є. О., Власенко, І. Ю.

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