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On Structured Realizability and Stabilizability of Linear Systems

We study the notion of structured realizability for linear systems dened over graphs. A stabilizable and detectable realization is structured if the state-space matrices inherit the sparsity pattern of the adjacency matrix of the associated graph. In this paper, we demonstrate that not every structured transfer matrix has a structured realization and we reveal the practical meaning of this fact. W

Low-density cells isolated from the rat thymus resemble branched cortical macrophages and have a reduced capability of rescuing double-positive thymocytes from apoptosis in the BB-DP rat.

Biobreeding-diabetes prone (BB-DP) rats spontaneously develop organ-specific autoimmunity and are severely lymphopenic and particularly deficient in ART2+ regulatory T cells. A special breed, the so-called BB-diabetic-resistant (DR) rats, are not lymphopenic and do not develop organ-specific autoimmunity. The genetic difference between both strains is the lymphopenia (lyp) gene. Intrathymic tolera

Computationally efficient damped Capon and APES spectral estimation

In this paper, we introduce computationally efficient imple- mentations of the data-dependent non-parametric damped Capon (dCapon) and APES (dAPES) spectral estimators. These estimators form two-dimensional frequency represen- tations over both frequency and damping, and have been shown to enable an efficient separation of closely spaced spectral lines with different line widths. The proposed impl