TY  - JOUR
AU  - Bradley Delso, Margarita
PY  - 1990
DO  - 10.1016/0022-4049(90)90067-R
SN  - 0022-4049
UR  - https://hdl.handle.net/20.500.14352/57160
T2  - Journal of Pure and Applied Algebra
AB  - Using some model-theoretic arguments applied to the theory of real valuations, we obtain a sufficient condition based on elementary properties of , K any real closed field, for ƒ to be sum of 2mth powers of rational functions in K(x).
M2  - 219
PB  - Elsevier Science B.V. (North-Holland)
KW  - positive semidefinite polynomials
KW  - semialgebraic sets
KW  - sum of 2m-th powers of rational functions
TI  - An elementary based sufficient condition for sums of 2mth powers of polynomials over non-archimedean real closed fields
TY  - journal article
VL  - 63
ER  -