Unresolvable Identifier

arXiv:2604.17904 · detector doi_compliance · cross_source · 2026-05-20 04:36:46.098884+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1007/s00605-021-01590-01' 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

Mukhammadiev, A., Tiwari, D., & Apaaboah, G. (2021). Supremum, infimum and hyperlim- its in the non-Archimedean ring of Colombeau generalized numbers.Monatshefte f¨ ur Math- ematik, 196, 163–190.https://doi.org/10.1007/s00605-021-01590-01, 2, 4, 6, 15

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1007/s00605-021-01590-01",
  "raw_excerpt": "Mukhammadiev, A., Tiwari, D., & Apaaboah, G. (2021). Supremum, infimum and hyperlim- its in the non-Archimedean ring of Colombeau generalized numbers.Monatshefte f\u00a8 ur Math- ematik, 196, 163\u2013190.https://doi.org/10.1007/s00605-021-01590-01, 2, 4, 6, 15",
  "ref_index": 7,
  "verdict_class": "cross_source"
}