Recognizing maximal unfrozen graphs with respect to independent sets is CO-NP-complete.
On difference sets of sets of integers
A note on large gaps between consecutive prime numbers
On a theorem of Kronecker and a related question of Lehmer.
Algebraic integers whose conjugates lie near the unit circle
Exceptional units and cyclic resultants
On heights of multiplicatively dependent algebraic numbers
On the greatest prime factor of (ab + 1) (ac + 1) (bc + 1)
On prime factors of sums of integers I
On the number of prime factors of integers of the form ab + 1
Multivariate Diophantine equations with many solutions
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