On the non-tangential convergence of Poisson and modified Poisson semigroups at the smoothness points of Lp -functions

BAYRAKÇI DOĞAN S., Shafiev M. F., Aliev I. A.

Periodica Mathematica Hungarica, cilt.80, sa.2, ss.249-258, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 80 Sayı: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1007/s10998-019-00310-4
  • Dergi Adı: Periodica Mathematica Hungarica
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, MathSciNet, zbMATH, DIALNET
  • Sayfa Sayıları: ss.249-258
  • Anahtar Kelimeler: Poisson semigroup, Metaharmonic semigroup, Non-tangential convergence, Smoothness point, Rate of convergence
  • Akdeniz Üniversitesi Adresli: Evet

Özet

© 2020, Akadémiai Kiadó, Budapest, Hungary.The high-dimensional version of Fatou’s classical theorem asserts that the Poisson semigroup of a function f∈Lp(Rn),1≤p≤∞, converges to f non-tangentially at Lebesque points. In this paper we investigate the rate of non-tangential convergence of Poisson and metaharmonic semigroups at μ-smoothness points of f.