Unresolvable Identifier

arXiv:2605.03920 · detector doi_compliance · cross_source · 2026-05-19 14:57:20.933096+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1007/s00021-021-00572-w' 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

G. Arioli, F. Gazzola, and H. Koch. “Uniqueness and bifurcation branches for planar steady Navier–Stokes equations under Navier boundary conditions”. In:Journal of Mathematical Fluid Mechanics23.3 (2021), p. 49.doi:10.1007/s00021-021-00572-w

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1007/s00021-021-00572-w",
  "raw_excerpt": "G. Arioli, F. Gazzola, and H. Koch. \u201cUniqueness and bifurcation branches for planar steady Navier\u2013Stokes equations under Navier boundary conditions\u201d. In:Journal of Mathematical Fluid Mechanics23.3 (2021), p. 49.doi:10.1007/s00021-021-00572-w",
  "ref_index": 2,
  "verdict_class": "cross_source"
}