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Bergman kernel and Geometric quantization (joint with Weiping ...

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Quantization on symplectic manifolds<br />

<strong>Bergman</strong> <strong>kernel</strong> <strong>and</strong> qeometric <strong>quantization</strong><br />

Index as a virtual representation<br />

<strong>Geometric</strong> <strong>quantization</strong><br />

Quantization commutes <strong>with</strong> reduction<br />

Non-compact case : Vergne’s conjecture<br />

◮ G compact connected Lie group <strong>with</strong> Lie algebra g.<br />

◮ G acts on X, <strong>and</strong> its action lifts on L, <strong>and</strong> commutes<br />

<strong>with</strong> J, hL , ∇L .<br />

◮ Ker DL <br />

± are finite dimensional G-representations.<br />

Q(L) = Ker D L L<br />

+ − Ker D− ∈ R(G).<br />

◮ Λ∗ + ⊂ g∗ the set of dominant weights, V G<br />

γ the<br />

irreducible representation of G <strong>with</strong> highest weight<br />

γ ∈ Λ∗ +. Then<br />

Q(L) = <br />

Q(L) γ · V G<br />

γ .<br />

γ∈Λ ∗ +<br />

◮ Q(L) γ the multiplicity of V G<br />

γ in Q(L).<br />

How to compute Q(L) γ ?<br />

Xiaonan Ma <strong>Bergman</strong> <strong>kernel</strong> <strong>and</strong> <strong>Geometric</strong> <strong>quantization</strong> (jo

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