Many problems based on unstructured grids provide a natural multigrid framework due to using an adaptive gridding procedure. When the grids are saved, even starting from just a ne grid problem poses no serious theoretical di culties in applying multigrid.
Sachit Malhotra +2 more
core
HILBERT-SPACE TECHNIQUES FOR SPECTRAL REPRESENTATION IN TERMS OF OVERCOMPLETE BASES
Topics associated with the representation of objects from a separable Hilbert space in terms of an a priori given overcomplete system (dictionary) of its generators (atoms) are handled. First the procedure of nding such a representation is formulated and
Vtzslav Vesel
core
ESTIMATING THE CONSUMPTION MATRIX FROM INEXACT DATA IN THE LEONTIEF MODEL
. The Leontief model, originally developed for describing an economic system in terms of mutually interrelated and structurally conditioned simultaneous flows of commodities and services, has important applications to wide ranging disciplines.
Moody +4 more
core
Communication Avoiding Rank Revealing QR Factorization with Column Pivoting
. In this paper we introduce CARRQR, a communication avoiding rank revealing QR factorization with tournament pivoting. We show that CARRQR reveals the numerical rank of a matrix in an analogous way to QR factorization with column pivoting (QRCP ...
Laura Grigori +3 more
core
On Some Properties of Interior Methods for Optimization
This thesis consists of four independent papers concerningdifferent aspects of interior methods for optimization. Threeof the papers focus on theoretical aspects while the fourth oneconcerns some computational experiments. The systems of equations solved
Sporre, Göran
core
On Some Properties of Interior Methods for Optimization [Elektronisk resurs]
This thesis consists of four independent papers concerningdifferent aspects of interior methods for optimization. Threeof the papers focus on theoretical aspects while the fourth oneconcerns some computational experiments.The systems of equations solved ...
Sporre, Göran,
core
Hotspots for copy number variation in chimpanzees and humans. [PDF]
Perry GH +11 more
europepmc +1 more source
Laterality patterns of brain functional connectivity: gender effects. [PDF]
Tomasi D, Volkow ND.
europepmc +1 more source
Detection of chromosomal imbalances in children with idiopathic mental retardation by array based comparative genomic hybridisation (array-CGH). [PDF]
Schoumans J +5 more
europepmc +1 more source
On the Determination of Lagrange Multipliers for a Weighted LASSO Problem Using Geometric and Convex Analysis Techniques. [PDF]
Giacchi G, Milani B, Franceschiello B.
europepmc +1 more source

