On converse to Koopman's Lemma
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K. Goodrich; K. Gustafson; B. Misra
📂
Article
📅
1980
🏛
Elsevier Science
🌐
English
⚖ 636 KB
Koopman's Lemma states that if a flow T1 is measure preserving for a measure TV on a constant energy surface 0, then the flow generates a one parameter family of unitary operators U, on L\* (a, p). We show here a converse, namely that under certain (physically motivated) conditions a unitary operato