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Kähler Potential


The Kähler potential is a real-valued function f on a Kähler manifold for which the Kähler form omega can be written as omega=ipartialpartial^_f. Here, the operators

 partial=sumpartial/(partialz_k)dz_k
(1)

and

 partial^_=sumpartial/(partialz^__k)dz^__k
(2)

are called the del and del bar operator, respectively.

For example, in C^n, the function f=|z|^2/2 is a Kähler potential for the standard Kähler form, because

ipartialpartial^_(1/2|z|^2)=1/2ipartialpartial^_sumz_kz^__k
(3)
=1/2ipartialsumz_kdz^__k
(4)
=1/2isumdz_k ^ dz^__k
(5)
=omega.
(6)

See also

Calibrated Manifold, Complex Manifold, Complex Projective Space, Kähler Form, Kähler Identities, Kähler Manifold, Kähler Metric, Kähler Structure, Projective Algebraic Variety, Riemannian Metric, Symplectic Manifold

This entry contributed by Todd Rowland

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Cite this as:

Rowland, Todd. "Kähler Potential." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein. https://mathworld.wolfram.com/KaehlerPotential.html

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