C*-algebra

Banach *-algebra such that |π‘₯*π‘₯|=|π‘₯||π‘₯*|=|π‘₯|Β²
Intangible mathematical_concept Q263809
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C*-algebra

Summary

C-algebra is a mathematical concept[1]. C-algebra ranks in the top 9% of mathematical_concept entities by monthly Wikipedia readership (345 views/month).[2]

Key Facts

  • C*-algebra's instance of is recorded as mathematical concept[3].
  • C*-algebra's GND ID is recorded as 4136693-1[4].
  • C*-algebra's Library of Congress authority ID is recorded as sh85018534[5].
  • C-algebra's subclass of is recorded as Banach -algebra[6].
  • C*-algebra's Freebase ID is recorded as /m/021cc[7].
  • C-algebra's topic's main category is recorded as Category:C-algebras[8].
  • C*-algebra's Stack Exchange tag is recorded as https://mathoverflow.net/tags/c-star-algebras[9].
  • C*-algebra's Stack Exchange tag is recorded as https://math.stackexchange.com/tags/c-star-algebras[10].
  • C-algebra's defining formula is recorded as \begin{aligned}x^{}&=x\(x+y)^&=x^+y^\(xy)^&=y^x^\(\lambda x)^&=\bar\lambda x^\|x^x|&= |x||x^*| = |x|^2\end{aligned}[11].
  • C*-algebra's MathWorld ID is recorded as C-Star-Algebra[12].
  • C*-algebra's nLab ID is recorded as C-star-algebra[13].
  • C*-algebra's maintained by WikiProject is recorded as WikiProject Mathematics[14].
  • C-algebra's Fandom article ID is recorded as tok:C-algebra[15].
  • C*-algebra's Microsoft Academic ID is recorded as 55648075[16].
  • C-algebra's ProofWiki ID is recorded as Definition:C-Algebra[17].
  • C*-algebra's in defining formula is recorded as \lambda[18].
  • C-algebra's in defining formula is recorded as ^[19].
  • C*-algebra's in defining formula is recorded as ||[20].
  • C*-algebra's in defining formula is recorded as \bar{}[21].
  • C-algebra's Encyclopedia of Mathematics article ID is recorded as C-algebra[22].
  • C*-algebra's PlanetMath ID is recorded as CAlgebra[23].
  • C*-algebra's National Library of Israel J9U ID is recorded as 987007293665005171[24].
  • C*-algebra's Treccani's Dizionario delle Scienze Fisiche ID is recorded as c-algebra[25].
  • C*-algebra's OpenAlex ID is recorded as C55648075[26].
  • C*-algebra's ScienceDirect topic ID is recorded as mathematics/c-algebra[27].

Why It Matters

C-algebra ranks in the top 9% of mathematical_concept entities by monthly Wikipedia readership (345 views/month).[2] C-algebra has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[28] C*-algebra is known by 18 alternative names across languages and contexts.[29]

References

Programmatic citations β€” every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . Integrated Authority File. wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . Freebase Data Dumps. wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . National Library of Israel. wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . OpenAlex. Retrieved . docs.openalex.org. Provenance: wikidata.org.
  25. [27] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata sitelinks. wikidata.org.
  3. [29] ↑ . Wikidata aliases. wikidata.org.

πŸ“‘ 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). C*-algebra. Retrieved May 3, 2026, from https://4ort.xyz/entity/c-algebra
MLA “C*-algebra.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/c-algebra.
BibTeX @misc{4ortxyz_c-algebra_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{C*-algebra}}, year = {2026}, url = {https://4ort.xyz/entity/c-algebra}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): C*-algebra — https://4ort.xyz/entity/c-algebra (retrieved 2026-05-03)

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