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Our note contains a simple answer to this question and a generalization of Kulaga's result on the corresponding isomorphism for some class of flows (see arXiv:1101.4975). We show that the isomorphism of weakly mixing flows $ S_t \\otimes S_t $ and $ T_t \\otimes T_t $ implies the isomorphism of the flows $S_t$ and $T_t$, if the latter has an integral weak limit."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1610.10093","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"math.DS","submitted_at":"2016-10-31T19:51:53Z","cross_cats_sorted":[],"title_canon_sha256":"6cb25ce9ffbb0082796bdad431d6d304dc83b90ed4db5530f1421552fa5f6f76","abstract_canon_sha256":"3ac3c26bfdb79f629a75c9507dbc94e70a90a3f1914a713a7c3c2fc8809de384"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:54:42.651590Z","signature_b64":"iy4/uH1NeOQi6/ABcep3f/PYcecPvW2JKLl5iWf8Hk2zqPI1QiQdg4gp57fdixvCqlcjBQ7H6oBiiYZ+t88BDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"653e2be0f0f2fbe23cacc555fe98e3e63f2d3a2d9ee24f1389c5716c3c55099f","last_reissued_at":"2026-05-18T00:54:42.651222Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:54:42.651222Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the isomorphism of tensor powers of ergodic flows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"math.DS","authors_text":"Valery V. 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