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matrice définie négative

negative definite matrix

électronique et électrotechnique - iate.europa.eu

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On detection of the number of signals when the noise covariance matrix is arbitrary ... This problem is related to finding the multiplicity of the smallest eigenvalue of Σ2Σ1−1, where Σ2 = Γ + λΣ1, Σ1 and Σ2 are covariance matrices, λ is a scalar, and Γ is non-negative definite matrix and is not of full rank....

général - core.ac.uk -

Dynamical analysis for high-order delayed hopfield neural networks with impulses... By utilizing Lyapunov functional method, the quality of negative definite matrix, and the linear matrix inequality approach, some new stability criteria for such system are derived....

PDF: doaj.org

Existence and uniqueness of the mles for normal distribution based on general progressively type-ii censored samples...unique.Log-concavity Location-scale family Normal distribution Progressively Type-II censored samples Hessian matrix Negative definite matrix

PDF: www.sciencedirect.com

Computer-aided study of a problem in hermitian matrix theory Let A be any n×n positive definite matrix and B any n×n non-negative definite matrix....

Rank two false theta functions and jacobi forms of negative definite matrix index... We show that these functions appear as Fouriercoefficients of a meromorphic Jacobi form of negative definite matrix index.Hypergeometric...

PDF: arxiv.org