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Equações e Funções Quadráticas: do surgimento aos dias atuais
(Universidade Federal do Rio Grande do NorteBrasilUFRNLicenciatura em Matemática, 2019)
Indefinite Abstract Splines with a Quadratic Constraint
(Springer/Plenum Publishers, 2020-06)
We study an extension to Krein spaces of the abstract interpolating spline problem in Hilbert spaces, introduced by M. Atteia. This is a quadratically constrained quadratic programming problem, where the objective function ...
ON THE QUADRATIC FOCK FUNCTOR
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2012)
We prove that the quadratic second quantization of an operator p on L-2(R-d) boolean AND L-infinity(R-d) is an orthogonal projection on the quadratic Fock space if and only if p is a multiplication operator by a characteristic ...
The behavior of quadratic and differential forms under function field extensions in characteristic two
(Elsevier Science (USA), 2007)
The behavior of quadratic and differential forms under function field extensions in characteristic two
(2003)
Let F be a field of characteristic 2. Let ΩFn be the F-space of absolute differential forms over F. There is a homomorphism ℘: ΩFn → ΩFn/dΩFn-1 given by ℘ (x dx1/x1 ∧ ⋯ ∧ dxn/xn) = (x2-x)dx1/x1 ∧ ⋯ ∧ dxn/xn mod dΩFn-1. Let ...
Finding common quadratic Lyapunov functions for switched linear systems using particle swarm optimisation
(TAYLOR & FRANCIS, 2012)
It is undoubtedly important to be able to ensure the existence of a common quadratic Lyapunov function (CQLF) for a given switched system because this is proof of its asymptotic stability, but equally important is the ...
Products of lines
(Wolfram Demonstration Project, 2016)