Structure of translation operators in the phase spaces of free Euclidean fields. I
Abstract
It is shown that in one class of Sovolev-type Hilbert spaces of functions on $\mathbf R^d$ the operator of translation along the coordinate axis $x^d$ has the semigroup property when projected onto the subspace of functions concentrated on the hypersurface $x^d=0$ .
Submission history
[v1] 1978