Higher arithmetic Chow groups.

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• Souvik Goswami (Texas A&M University )
• Monday 09 March 2020, 15:00-16:00
• Seminar Room 2, Newton Institute.

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KAH - K-theory, algebraic cycles and motivic homotopy theory

We give a new definition of higher arithmetic Chow groups for smooth projective varieties defined over a number field, which is similar to Gillet and Soulé's definition of arithmetic Chow groups. We also give a compact description of the intersection theory of such groups. A consequence of this theory is the definition of a height pairing between two higher algebraic cycles, of complementary dimensions, whose real regulator class is zero. This description agrees with Beilinson's height pairing for the classical arithmetic Chow groups. We also give examples of the higher arithmetic intersection pairing in dimension zero that is given by the Bloch-Wigner dilogarithm functions. This is based on the joint work with José Burgos Gil (https://doi.org/10.1016/j.aim.2019.02.003).

This talk is part of the Isaac Newton Institute Seminar Series series.

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