Unresolvable Identifier

arXiv:2605.16231 · detector doi_compliance · cross_source · 2026-05-20 16:22:30.259297+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1007/978-3-642-96790-4' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

L. H¨ ormander,The Analysis of Linear Partial Differential Operators I, Springer, Berlin (1983), 10.1007/978-3-642-96790-4

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1007/978-3-642-96790-4",
  "raw_excerpt": "L. H\u00a8 ormander,The Analysis of Linear Partial Differential Operators I, Springer, Berlin (1983), 10.1007/978-3-642-96790-4",
  "ref_index": 35,
  "verdict_class": "cross_source"
}