definition 14.83 Contraction

Rests on

No declared or derived dependency edges point away from this node yet.

Supports

• depends_on corollary A.59 The eight vanishing patterns are the contraction cube ¶
• depends_on lemma 14.87 A rescaled Casimir stays central ¶
• depends_on lemma 14.86 The Inönü–Wigner contraction along a subalgebra ¶
• depends_on proposition 14.84 Properties of a contraction ¶
• depends_on theorem 14.90 Bacry–Lévy-Leblond ¶
  • depends_on corollary 15.46 The sign data, hypothesis (H3), and the count eleven ¶
  • depends_on corollary 15.44 The eight vertices are the eight degenerations of $A$ ¶
    • depends_on remark 15.45 A correction this forces: the general splitting gives the static algebra, not Carroll ¶
  • depends_on definition A.413 The Galilei algebra of three space dimensions ¶
    • depends_on proposition A.419 The coboundaries ¶
    • depends_on proposition A.418 The cocycles ¶
      • depends_on proposition A.419 The coboundaries ¶ ↺
    • depends_on theorem A.414 $H^{2}$ of the Galilei algebra ¶