Mathematics – Differential Geometry
Scientific paper
2011-03-30
Mathematics
Differential Geometry
Scientific paper
We prove that the Riemannian geometry of almost K\"ahler submanifolds can be expressed in terms of the Poisson algebra of smooth functions on the manifold. Subsequently, K\"ahler-Poisson algebras are introduced, and it is shown that a purely algebraic theory of geometry and curvature can be developed. As an illustration of the new concepts we show that if the sectional curvature is independent of the choice of tangent plane, then it Poisson commutes with all elements in the algebra, and prove that a bound on the Ricci curvature induces a bound on the eigenvalues of the Laplace operator.
Arnlind Joakim
Huisken Gerhard
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