Non-Locality of Equivariant Star Products on $T*(RP^n)$

Details Non-Locality of Equivariant Star Products on $T*(RP^n)$ Non-Locality of Equivariant Star Products on $T*(RP^n)$

2000-10-27

arxiv.org/abs/math/0010259v1

Mathematics

Quantum Algebra

6 pages

Scientific paper

Lecomte and Ovsienko constructed $SL_{n+1}(R)$-equivariant quantization maps $Q_\lambda$ for symbols of differential operators on $\lambda$-densities on $\RP^n$. We derive some formulas for the associated graded equivariant star products $star_\lambda$ on the symbol algebra $Pol(T*\RP^n)$. These give some measure of the failure of locality. Our main result expresses (for $n$ odd) the coefficients $C_p$ of $star_\lambda$ when $\lambda=\half$ in terms of some new $SL_{n+1}(C)$-invariant algebraic bidifferential operators $Z_p$ on $T*\CP^n$ and the operators $(E+\frac{n}{2}\pm s)^{-1}$ where $E$ is the fiberwise Euler vector field and $s\in\{1,2,...,[\frac{p}{2}]\}$.

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