TY - JOUR AU - Acquistapace, Francesca AU - Broglia, Fabrizio AU - Ruiz Sancho, Jesús María PY - 2007 DO - 10.1007/s00209-007-0107-6 SN - 0025-5874 UR - https://hdl.handle.net/20.500.14352/49899 T2 - Mathematische Zeitschrift AB - We show that the Pythagoras number of a real analytic curve is the supremum of the Pythagoras numbers of its singularities, or that supremum plus 1. This includes cases when the Pythagoras number is infinite. LA - eng M2 - 13 PB - Springer KW - Pythagoras number KW - Sum of squares KW - Analytic curve Germ KW - Global analytic curve TI - On the Pythagoras numbers of real analytic curves. TY - journal article VL - 257 ER -