Unresolvable Identifier

arXiv:2604.20282 · detector doi_compliance · cross_source · 2026-05-20 02:07:16.267610+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1137/s0036142996299717' 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

M. Cessenat, B. Després, Application of an ultra weak va riational formulation of elliptic PDEs to the two-dimensional Helmholtz problem, SIAM Journal on Numeri cal Analysis 35 (1) (1998) 255–299. doi:10.1137/S0036142996299717

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1137/s0036142996299717",
  "raw_excerpt": "M. Cessenat, B. Despr\u00e9s, Application of an ultra weak va riational formulation of elliptic PDEs to the two-dimensional Helmholtz problem, SIAM Journal on Numeri cal Analysis 35 (1) (1998) 255\u2013299. doi:10.1137/S0036142996299717",
  "ref_index": 12,
  "verdict_class": "cross_source"
}