Telgarsky's conjecture may fail (with Will Brian, Alan Dow, and Lynne Yengulalp), arXiv:1912.03327.
(Under review.)

Between homeomorphism type and Tukey type, arXiv:1902.06152.
(To appear in Topology and its Applications.)

Non-Absoluteness of Model Existence at ω (with Ioannis Souldatos), arXiv:1706:04328.
(Published: Fundamenta Mathematicae, 243 (2018), 179--193.)

Chaos and periodicity on star graphs (with Jorge Guerrero), arXiv:1612.08221.
(Under review.)

Amalgamating many overlapping Boolean algebras, arXiv:1607.07944.
(Under review.)

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