{
  "abstract": "We define Δ-equivalence for operator systems and show that it is identical to stable isomorphism. We define Δ-contexts and bihomomorphism contexts and show that two operator systems are Δ-equivalent if and only if they can be placed in a Δ-context, equivalently, in a bihomomorphism context. We show that nuclearity for a variety of tensor products is an invariant for Δ-equivalence and that function systems are Δ-equivalent precisely when they are order isomorphic. We prove that Δ-equivalent operator systems have equivalent categories of representations. As an application, we characterise Δ-equivalence of graph operator systems in combinatorial terms. We examine a notion of Morita embedding for operator systems, showing that mutually Δ-embeddable operator systems have orthogonally complemented Δ-equivalent corners when represented in the double dual of their C*-envelopes.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Mathematics, Faculty of Sciences, University of Patras, 26504, Patras, Greece",
    "Department of Mathematics, National and Kapodistrian University of Athens, Athens, 1578 84, Greece",
    "School of Mathematical Sciences, University of Delaware, 501 Ewing Hall, Newark, DE, 19716, USA"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "George Eleftherakis",
      "orcid": "0000-0003-4857-4006"
    },
    {
      "affs": [
        1
      ],
      "name": "Evgenios T. A. Kakariadis",
      "orcid": "0000-0003-3053-070X"
    },
    {
      "affs": [
        2
      ],
      "name": "Ivan G. Todorov",
      "orcid": "0000-0002-0326-6723"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3pc5rqfaxxzhr.bib",
  "cited_by": 12,
  "doi": "10.1007/s11854-025-0428-6",
  "fulltext_url": null,
  "id": "3pc5rqfaxxzhr",
  "issns": [
    "0021-7670",
    "1565-8538"
  ],
  "landing_url": "https://doi.org/10.1007/s11854-025-0428-6",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2610|Advanced Operator Algebra Research"
    ]
  ],
  "openalex": "W3202315622",
  "pdf_url": "https://link.springer.com/content/pdf/10.1007/s11854-025-0428-6.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-07-19",
  "publisher": "Springer Science+Business Media",
  "ris": "https://research.draconitic.com/paper/3pc5rqfaxxzhr.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T13:21:00Z",
      "native_id": "W3202315622",
      "source": "openalex",
      "url": "https://doi.org/10.1007/s11854-025-0428-6"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "openalex:2610|Advanced Operator Algebra Research",
      "subfield": "mathematical-physics"
    }
  ],
  "title": "Morita equivalence for operator systems",
  "title_text": "Morita equivalence for operator systems",
  "type": "peer-reviewed",
  "updated_at": "2026-11-09T13:21:00Z",
  "url": "https://research.draconitic.com/paper/3pc5rqfaxxzhr",
  "venue": "Journal d Analyse Mathématique",
  "versions": []
}