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math.RA2026
Characterization of the centrally finite Amitsur-Small division rings
Elad Paran
In 1978, Amitsur and Small asked whether, for every division ring , maximal left ideals of contract to maximal left ideals in smaller polynomial subrings. Ch…
math.AC2026
On Landweber`s unique factorization problem
Adam Jones, Elad Paran
We solve a long-standing open problem, posed by Landweber in 1974: Let be the ring of polynomials in countably many variables over a field . Is the for…