Diamond_operator

Diamond operator

Diamond operator

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This article is about ⋄. For <> following a type name in the Java programming language, see Generics in Java § Diamond operator.

In number theory, the diamond operators 〈d〉 are operators acting on the space of modular forms for the group Γ1(N), given by the action of a matrix (a b
c δ) in Γ0(N) where δ ≈ d mod N. The diamond operators form an abelian group and commute with the Hecke operators.

Unicode

In Unicode, the diamond operator is represented by the character U+22C4 ⋄ DIAMOND OPERATOR.[1]

Notes

  1. [1]
    "Mathematical Operators – Unicode" (PDF). Retrieved 2013-04-22.

References

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