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math.AC2021
Commutative bidifferential algebra
Omar Leon Sanchez, Rahim Moosa
Motivated by the Poisson Dixmier-Moeglin equivalence problem, a systematic study of commutative unitary rings equipped with a {\em biderivation}, namely a binary operation that is…
math.AC2018
Effective definability of Kolchin polynomials
James Freitag, Omar Leon Sanchez, Wei Li
While the natural model-theoretic ranks available in differentially closed fields (of characteristic zero), namely Lascar and Morley rank, are known not to be definable in families…