Q-linear functions, functions with dense graph, and everywhere surjectivity

  1. Francisco Javier García Pacheco
  2. Fernando Rambla-Barreno
  3. Juan Benigno Seoane Sepúlveda
Revista:
Mathematica scandinavica

ISSN: 0025-5521

Año de publicación: 2008

Volumen: 102

Número: 1

Páginas: 156-160

Tipo: Artículo

DOI: 10.7146/MATH.SCAND.A-15057 DIALNET GOOGLE SCHOLAR lock_openAcceso abierto editor

Otras publicaciones en: Mathematica scandinavica

Resumen

Let L, S and D denote, respectively, the set of Q-linear functions, the set of everywhere surjective functions and the set of dense-graph functions on R. In this note, we show that the sets D∖(S∪L), S∖L, S∩L and D∩L∖S are lineable. Moreover, all these sets contain (omitting zero) a vector space of the biggest possible dimension, 2c.