Automorphic forms

Miyawaki lift

The Miyawaki lift or Ikeda–Miyawaki lift or Miyawaki–Ikeda lift, is a mathematical lift that takes two Siegel modular forms to another Siegel modular form. Miyawaki conjectured the existence of this lift for the case of degree 3 Siegel modular forms, and Ikeda proved its existence in some cases using the Ikeda lift. Ikeda's construction starts with a Siegel modular form of degree 1 and weight 2k, and a Siegel cusp form of degree r and weight k + n + r and constructs a Siegel form of degree 2n + r and weight k + n + r. The case when n = r = 1 was conjectured by Miyawaki. Here n, k, and r are non-negative integers whose sum is even. (Wikipedia).

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Related pages

Ikeda lift | Siegel modular form | Lift (mathematics)