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GMM with many weak moment conditions [PDF]

open access: yes
Using many moment conditions can improve efficiency but makes the usual GMM inferences inaccurate. Two step GMM is biased. Generalized empirical likelihood (GEL) has smaller bias but the usual standard errors are too small.
Frank Windmeijer, Whitney Newey
core  

Most totally real fields do not have universal forms or the Northcott property. [PDF]

open access: yesProc Natl Acad Sci U S A
Daans N   +4 more
europepmc   +1 more source

Diophantine triples in linear recurrences of Pisot type. [PDF]

open access: yesRes Number Theory, 2018
Fuchs C, Hutle C, Luca F.
europepmc   +1 more source

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