Where is Nikita Nekrasov based?

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What is the status of Nikita Nekrasov at the SUNY Stony Brook? I understand that this article says that he is a full professor in New York, having in 2013 moved to Stony Brook.

However the same article also explicitly states that he resides in France, leading one to think that he might still be working at Bures-sur-Yvette (I.H.E.S.), and that he works part time at Stony Brook.