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Showing 1 to 1 of 1 for “"operatori pseudodifferenziali"”.
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Global normal forms and global properties in function spaces for second order Shubin type operators
We investigate the reduction to global normal forms of second order Shubin(or G) type differential operators P(x;D) in functional spaces on Rn. We describe the isomorphism properties of normal form transformations, introduced by L. Hormander for the study of affine symplectic transformations acting …