Abstract
The goal of this note is to describe a class of formal deformations of a symplectic manifold $M$ in the case when the base ring of the deformation problem involves parameters of non-positive degrees. The interesting feature of such deformations is that these are deformations "in $A\_{\infty}$-infinity direction“ and, in general, their description involves all cohomology classes of $M$ of degrees $\geq 2$.
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