The diagonal cycle Euler system for GL2× GL2

Abstract

We construct an anticyclotomic Euler system for the Rankin-Selberg convolution of two modular forms, using p-adic families of generalized Gross-Kudla-Schoen diagonal cycles. As applications of this construction, we prove new cases of the Bloch-Kato conjecture in analytic ranks zero and one, and a divisibility towards an Iwasawa main conjecture.

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