TY  - JOUR
AU  - Acquistapace, Francesca
AU  - Broglia, Fabrizio
AU  - Fernando Galván, José Francisco
PY  - 2014
SN  - 0391-173X
UR  - https://hdl.handle.net/20.500.14352/33652
T2  - ANNALI DELLA SCUOLA NORMALE SUPERIORE DI PISA-CLASSE DI SCIENZE
AB  - In this work, we present "infinite" multiplicative formulae for countable collections of sums of squares (of meromorphic functions on R-n). Our formulae generalize the classical Pfister's ones concerning the representation as a sum of 2(r) squares of...
LA  - eng
M2  - 333
PB  - SCUOLA NORMALE SUPERIORE DI PISA
KW  - Mathematics
TI  - On Hilbert's 17th problem and Pfister's multiplicative formulae for the ring of real analytic functions
TY  - journal article
VL  - 13
ER  -