{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:I5OA5IGHR46N4OZYMPTB7WORVC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"fafaa73f707f0297e7e33919f84fc5188a8b2473106c88c9e9c451e536a8e9ec","cross_cats_sorted":["cs.SY","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2020-03-24T02:51:47Z","title_canon_sha256":"cf4eef5ae450477a8ce6fb44f0ec9dfb2fe991d4d6f3efe94ab09c26d227f30b"},"schema_version":"1.0","source":{"id":"2003.10628","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2003.10628","created_at":"2026-07-05T00:50:19Z"},{"alias_kind":"arxiv_version","alias_value":"2003.10628v1","created_at":"2026-07-05T00:50:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2003.10628","created_at":"2026-07-05T00:50:19Z"},{"alias_kind":"pith_short_12","alias_value":"I5OA5IGHR46N","created_at":"2026-07-05T00:50:19Z"},{"alias_kind":"pith_short_16","alias_value":"I5OA5IGHR46N4OZY","created_at":"2026-07-05T00:50:19Z"},{"alias_kind":"pith_short_8","alias_value":"I5OA5IGH","created_at":"2026-07-05T00:50:19Z"}],"graph_snapshots":[{"event_id":"sha256:84f17ff12030233d3dd5a5e7fe24eb686f4fe1c545b02ca463b6db3c9c007af5","target":"graph","created_at":"2026-07-05T00:50:19Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2003.10628/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"H-infinity controllers are frequently used in control theory due to their robust performance and stabilization. Classical H-infinity controller synthesis methods for finite dimensional LTI MIMO plants result in high-order controllers for high-order plants whereas low-order controllers are desired in practice. We design fixed-order H-infinity controllers for a class of time-delay systems based on a non-smooth, non-convex optimization method and a recently developed numerical method for H-infinity norm computations.","authors_text":"Suat Gumussoy, Wim Michiels","cross_cats":["cs.SY","math.OC"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2020-03-24T02:51:47Z","title":"Fixed-Order H-infinity Optimization of Time-Delay Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.10628","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:21eb311f5499f1a00fd9a47e4f27f1a1bff8f86383827ee5de431a8e43ad9ad7","target":"record","created_at":"2026-07-05T00:50:19Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"fafaa73f707f0297e7e33919f84fc5188a8b2473106c88c9e9c451e536a8e9ec","cross_cats_sorted":["cs.SY","math.OC"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SY","submitted_at":"2020-03-24T02:51:47Z","title_canon_sha256":"cf4eef5ae450477a8ce6fb44f0ec9dfb2fe991d4d6f3efe94ab09c26d227f30b"},"schema_version":"1.0","source":{"id":"2003.10628","kind":"arxiv","version":1}},"canonical_sha256":"475c0ea0c78f3cde3b3863e61fd9d1a88e560846badcaad6c4e5cf355d8339a5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"475c0ea0c78f3cde3b3863e61fd9d1a88e560846badcaad6c4e5cf355d8339a5","first_computed_at":"2026-07-05T00:50:19.191434Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:50:19.191434Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6Ttl7E0lsiRcFviIwsw9TtRnqXA3VFcAkBIm70p7Ohegf8vODXy4OeL+0x/TbM1uGwTzTHjaM0hIUr817B9tCA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:50:19.191841Z","signed_message":"canonical_sha256_bytes"},"source_id":"2003.10628","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21eb311f5499f1a00fd9a47e4f27f1a1bff8f86383827ee5de431a8e43ad9ad7","sha256:84f17ff12030233d3dd5a5e7fe24eb686f4fe1c545b02ca463b6db3c9c007af5"],"state_sha256":"a84ba97c4786e573a5fbdec6e7933f1124961c75b30779302045113c027a24c8"}