RT Journal Article T1 Equivalent norms in polynomial spaces and applications. A1 Araujo, G. A1 Jiménez Rodríguez, P. A1 Muñoz-Fernández, Gustavo A. A1 Seoane-Sepúlveda, Juan B. AB In this paper, equivalence constants between various polynomial norms are calculated. As an application, we also obtain sharp values of the Hardy Littlewood constants for 2-homogeneous polynomials on l(p)(2) spaces, 2 < p <= infinity. We also provide lower estimates for the Hardy-Littlewood constants for polynomials of higher degrees. PB Elsevier SN 0022-247X YR 2017 FD 2017 LK https://hdl.handle.net/20.500.14352/17552 UL https://hdl.handle.net/20.500.14352/17552 LA eng NO Ministerio de Ciencia e Innovación (MICINN) DS Docta Complutense RD 5 abr 2025