
handle: 20.500.14352/57239
We show that any positive semidefinite analytic function germ on the cone z(2) = x(2) + y(2) is a sum of two squares of analytic function germs.
Local analytic geometry, analytic function germs, 1201.01 Geometría Algebraica, Geometria algebraica, Analytic function germs, 512.7, Real algebraic and real-analytic geometry, 517.98, Análisis funcional y teoría de operadores
Local analytic geometry, analytic function germs, 1201.01 Geometría Algebraica, Geometria algebraica, Analytic function germs, 512.7, Real algebraic and real-analytic geometry, 517.98, Análisis funcional y teoría de operadores
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