Spherical functions and local densities on hermitian forms

Yumiko Hironaka*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


First we give a formula of spherical functions on certain spherical homo-geneous spaces. Then, applying it, we complete the theory of the spherical functions on the space X of nondegenerate unramified hermitian forms on a p-adic number field. More precisely, we give an explicit expression for the spherical functions, prove theorems on the spherical Fourier transforms on the space of Schwartz-Bruhat functions on X, and parametrize of all spherical functions onX. Finally, as an application, we give explicit expressions of local densities of representations of hermitian forms.

Original languageEnglish
Pages (from-to)553-581
Number of pages29
JournalJournal of the Mathematical Society of Japan
Issue number3
Publication statusPublished - 1999


  • Hermitian forms
  • Local densities
  • Spherical functions

ASJC Scopus subject areas

  • Mathematics(all)


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