Some applications of Q-points and Lebesgue filters to Banach spaces

• M. Hrusak ^[1] ; L. Sáenz ^[1]
  1. [1] Centro de Ciencias Matemáticas, UNAM A.P. 61-3, Xangari, Morelia, Michoacán, 58089, México
• Localización: Extracta mathematicae, ISSN-e 0213-8743, Vol. 39, Nº 2, 2024, págs. 173-187
• Idioma: inglés
• DOI: 10.17398/2605-5686.39.2.173
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• Resumen

  • We present a new characterization of Q-point ultrafilters and use it to optimize the result of Avilés, Martı́nez-Cervantes, and Rueda Zoca linking the existence of L-orthogonal sequences and L-orthogonal elements in Banach spaces via ultrafilter limits

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