Deriving the conformal Laplacian

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SUMMARY

The discussion centers on deriving the conformal Laplacian, specifically the expression involving the metric tensor \( g \) associated with a Levi Civita connection. The equation presented is \(\sum_{m,n}g^{mn}(y)\partial_{q^m}\partial_{q^n}(\psi|\det{(g)}|^{1/4})(y)=\sum_{m,n}|det{g}|^{1/4}(\Delta \Psi -\frac{1}{6}R(y)\psi(y))\). The context involves the use of normal frames where all Christoffel symbols are zero, leading to the conclusion that the conformal expression of the Laplacian, also known as the Yamabe operator, is derived from the principles outlined in Sniatycki J.'s book "Geometric Quantization and Quantum Mechanics".

PREREQUISITES
  • Understanding of differential geometry concepts, particularly metrics and connections.
  • Familiarity with the Laplacian operator in the context of Riemannian geometry.
  • Knowledge of conformal transformations and their implications in geometry.
  • Experience with Christoffel symbols and their role in curvature calculations.
NEXT STEPS
  • Study the derivation of the Yamabe operator in detail.
  • Explore the implications of the conformal Laplacian in quantum mechanics.
  • Read "Geometric Quantization and Quantum Mechanics" by Sniatycki J. for deeper insights.
  • Investigate the relationship between the conformal Laplacian and geometric flows.
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Mathematicians, physicists, and researchers in differential geometry and quantum mechanics who are focused on the applications of conformal geometry and Laplacians in theoretical frameworks.

Ssnow
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Hi to all!! I have a problem to derive the conformal laplacian

\sum_{m,n}g^{mn}(y)\partial_{q^m}\partial_{q^n}(\psi|\det{(g)}|^{1/4})(y)=\sum_{m,n}|det{g}|^{1/4}(\Delta \Psi -\frac{1}{6}R(y)\psi(y))

where $$g$$ is the metric associated to a Levi Civita connection in a normal frame, we have that in the point $y$ all Christoffel symbols are $$0$$ and $$\Gamma_{ij}^m,k(y)+\Gamma_{ki}^m,j(y)+\Gamma_{jk}^m,i(y)=0.$$

In practice the aim is to find the conformal expression of the Laplacian (Yamabe operator) ... the source is the book "Geometric quantization and quantum mechanics" Sniatycki J.
Thanks,
Ssnow
 
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I solved the problem, Ssnow
 

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