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A NEW PROOF OF OKAJI'S THEOREM FOR A CLASS OF SUM OF SQUARES OPERATORS
(ANNALES INST FOURIER, 2009)
Let P be a linear partial differential operator with analytic coefficients. We assume that P is of the form ""sum of squares"", satisfying Hormander's bracket condition. Let q be a characteristic point; for P. We assume ...
On sum of squares certificates of non-negativity on a strip
(Elsevier Science, 2021-07)
In Polynomials non-negative on a strip, Murray Marshall proved that every non-negative on the strip can be written as with sums of squares in . In this work, we present a few results concerning this representation in ...
On Switched Controller Design for Robust Control of Uncertain Polynomial Nonlinear Systems Using Sum of Squares
(2018-01-01)
This manuscript presents a switched control design for robust control of a class of uncertain nonlinear systems. In particular, it is considered a class of nonlinear systems whose dynamics are described by polynomial ...
Ley de reciprocidad cuadrática y cuestiones relacionadas con cuadrados
(Facultad de Ciencias BásicasMontería, Córdoba, ColombiaMatemática, 2021)
Algebraic IDA-PBC for Polynomial Systems with Input Saturation: An SOS-based Approach
(Escuela Politécnica Nacional, 2019)
SUMS OF SQUARES OF POLYNOMIAL EFFECTS OF TREATMENTS IN RANDOMIZED BLOCK EXPERIMENTS WITH UNBALANCED DATA
(International Biometric Soc, 1985-12-01)
SUMS OF SQUARES OF POLYNOMIAL EFFECTS OF TREATMENTS IN RANDOMIZED BLOCK EXPERIMENTS WITH UNBALANCED DATA
(International Biometric Soc, 1985-12-01)
Sums of squares of linear forms
(Springer-Verlag, 1986)
Square of a sum
(2016)