Open AccessDécomposition des fonctions positives en sommes de carrés
Author(s) -
Jean-Michel Bony
Publication year - 2008
Publication title -
journées équations aux dérivées partielles
Language(s) - French
Resource type - Journals
eISSN - 2118-9366
pISSN - 0752-0360
DOI - 10.5802/jedp.3
Subject(s) - humanities , philosophy
Any nonnegative C2m function defined in an interval is the sum of the squares of two Cm functions.
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