Drinfeld reciprocity

Drinfeld reciprocity is a key concept in the field of arithmetic geometry and number theory, particularly in the study of function fields and their extensions. It is named after Vladimir Drinfeld, who introduced it in the context of his work on modular forms and algebraic structures over function fields. The concept can be viewed as an analogue of classical reciprocity laws in number theory, such as the law of quadratic reciprocity, but applied to function fields instead of number fields.