Entire Functions & Picard Theorems

Complex Analysis Picard (1879) Cite
Primary: Émile Picard
Publication: Picard theorems
Year: 1879
URL: Wikipedia

Entire = holomorphic on ℂ. Liouville: bounded ⇒ constant. Little Picard: entire omits at most one value. Great Picard: essential singularity omits at most one.

graph TD D1["Def: Entire function\nholomorphic on ℂ"] D2["Def: Order of growth\nρ = lim sup log M(r)/log r"] D3["Def: Essential sing\nLaurent: infinitely many\nnegative powers"] T1["Thm: Liouville\nentire bounded ⇒ constant"] T2["Thm: Little Picard\nentire omits ≥2 values\n⇒ constant"] T3["Thm: Great Picard\nf has ess sing at z₀\n⇒ f omits at most 1\nin punctured nbhd"] T4["Thm: Hadamard factorization\nentire order ρ"] T5["Thm: Weierstrass product\nzeros ⇒ entire construction"] L1["Lemma: Casorati–Weierstrass\nimage dense near ess sing"] D1 --> T1 D1 --> T2 D2 --> T4 D3 --> T3 D3 --> L1 L1 --> T3 T2 --> T4 classDef definition fill:#b197fc,color:#fff classDef theorem fill:#51cf66,color:#fff classDef lemma fill:#74c0fc,color:#fff class D1,D2,D3 definition class T1,T2,T3,T4,T5 theorem class L1 lemma

Process Statistics

  • Nodes: 15
  • Edges: 11
  • Definitions: 3
  • Theorems: 5
  • Lemmas: 1
Frontier: Nevanlinna theory, value distribution, complex dynamics (iteration of entire maps). math.CV