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Krein's condition

Intangible theorem Q6436610
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Krein's condition

Summary

Krein's condition is a theorem[1].

Key Facts

  • Krein's condition's instance of is recorded as theorem[2].
  • Krein's condition's Freebase ID is recorded as /m/0h3xnfv[3].
  • Krein's condition's facet of is recorded as approximation theory[4].
  • Krein's condition's maintained by WikiProject is recorded as WikiProject Mathematics[5].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Krein's condition. Retrieved May 3, 2026, from https://4ort.xyz/entity/krein-s-condition
MLA “Krein's condition.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/krein-s-condition.
BibTeX @misc{4ortxyz_krein-s-condition_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Krein's condition}}, year = {2026}, url = {https://4ort.xyz/entity/krein-s-condition}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Krein's condition — https://4ort.xyz/entity/krein-s-condition (retrieved 2026-05-03)

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