4 papers
Finite-index extensions of essentially free countable Borel equivalence relations
Jason Zesheng Chen
Kechris asked whether essential freeness of countable Borel equivalence relations is preserved under extensions of finite index. Kaya proved that every such extension of a relation…
Equivalence of Random Generics Is Not Essentially Free
Jason Zesheng Chen
Let be a countable transitive model of a sufficiently large finite fragment of ZFC, and let be equivalence of random generics over . Smythe proved that $…
Ideals, Well-Orderable Families, and Baire Category in Truss's Feferman-Type Model
Jason Zesheng Chen
Let assert that every well-orderable family of dense open subsets of a perfect Polish space has dense intersection, and let …
Recurrent Reasoning on Symbolic Puzzles with Sequence Models
Gowrav Mannem, Chowdhury Marzia Mahjabin, Jason Chen +2
Large language models often appear strong on symbolic and algorithmic tasks, yet this apparent strength can hide brittle behaviour when problems become longer, harder, or slightly…