3 problems

Let $M$ be a smooth manifold with a connection, and let the formula defining the projectively equivariant quantization be used to define a deformation of the algebra of symbols on…

Lecomte's conjecture. There exists a natural ordering prescription for differential operators between density bundles that is invariant under projective changes of the covariant de…

Let $F$ be a combination of multiple polylogarithms of weight four, let $\mathcal{S}(F)$ denote its symbol, and define … where $a\wedge b=a\otimes b-b\otimes a$. Goncharov's criter…