A Remark on Finite Type Conditions

John P. D’Angelo

Research output: Contribution to journalArticlepeer-review


We prove that a certain positivity condition, considerably more general than pseudoconvexity, enables one to conclude that the regular and singular orders of contact agree when either of these numbers is 4.

Original languageEnglish (US)
Pages (from-to)2602-2608
Number of pages7
JournalJournal of Geometric Analysis
Issue number3
StatePublished - Jul 1 2018


  • Faa di Bruno formula
  • Finite type conditions
  • Plurisubharmonic function
  • Positivity property
  • Real hypersurface germ

ASJC Scopus subject areas

  • Geometry and Topology

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