Quadrature of singular integrands over surfaces.
Quadrature over the sphere.
Quadrature-free quasi-interpolation on the sphere.
Quad-tree Based Finite Volume Method for Diffusion Equations with Application to SAR Imaged Filtering
In this paper we present a method to remove the noise by applying the Perona Malik algorithm working on an irregular computational grid. This grid is obtained with a quad-tree technique and is adapted to the image intensities—pixels with similar intensities can form large elements. We apply this algorithm to remove the speckle noise present in SAR images, i.e., images obtained by radars with a synthetic aperture enabling to increase their resolution in an electronic way. The presence of the speckle...
Qualitative behavior of giving up smoking models.
Quality improvement of rule-based gene group descriptions using information about GO terms importance occurring in premises of determined rules
In this paper we present a method for evaluating the importance of GO terms which compose multi-attribute rules. The rules are generated for the purpose of biological interpretation of gene groups. Each multi-attribute rule is a combination of GO terms and, based on relationships among them, one can obtain a functional description of gene groups. We present a method which allows evaluating the influence of a given GO term on the quality of a rule and the quality of a whole set of rules. For each...
Quantitative model for efficient temporal targeting of tumor cells and neovasculature.
Quantitative Neuroscience: From Chalk Board to Bedside
Quantitative properties of quadratic spline wavelet bases in higher dimensions
To use wavelets efficiently to solve numerically partial differential equations in higher dimensions, it is necessary to have at one’s disposal suitable wavelet bases. Ideal wavelets should have short supports and vanishing moments, be smooth and known in closed form, and a corresponding wavelet basis should be well-conditioned. In our contribution, we compare condition numbers of different quadratic spline wavelet bases in dimensions d = 1, 2 and 3 on tensor product domains (0,1)^d.
Quantitative versions of a result of Hecke in the theory of uniform distribution mod 1
Quantum dynamical entropy and an algorithm by Gene Golub.
Quantum optimal control using the adjoint method
Control of quantum systems is central in a variety of present and perspective applications ranging from quantum optics and quantum chemistry to semiconductor nanostructures, including the emerging fields of quantum computation and quantum communication. In this paper, a review of recent developments in the field of optimal control of quantum systems is given with a focus on adjoint methods and their numerical implementation. In addition, the issues of exact controllability and optimal control are...
Quartic and biquartic interpolatory splines on simple grid
Quartic smoothing splines generalized
Quartic splines with minimal norms
Quartic X-Splines.
Quasi-boundary value method for non-well posed problem for a parabolic equation with integral boundary condition.
Quasi-interpolation and a posteriori error analysis in finite element methods
Quasi-Interpolation and A Posteriori Error Analysis in Finite Element Methods
One of the main tools in the proof of residual-based a posteriori error estimates is a quasi-interpolation operator due to Clément. We modify this operator in the setting of a partition of unity with the effect that the approximation error has a local average zero. This results in a new residual-based a posteriori error estimate with a volume contribution which is smaller than in the standard estimate. For an elliptic model problem, we discuss applications to conforming, nonconforming and mixed...
Quasi-iteration methods of Chebyshev type for the approximate solution of operator equations