Publications related to Orthogonal coordinates

On the n-dimensional Dirichlet problem for isometric maps

We exhibit explicit Lipschitz maps from R '' to R '' which have almost everywhere orthogonal gradient and are equal to zero on the boundary of a cube. We solve the problem by induction on the dimension n. (C) 2008 Elsevier Inc. All rights reserved. ...

2008

Single or triple gradients?

Geoffrey Bodenhausen, Paul Romeo Vasos, Riddhiman Sarkar, Fabien Ferrage

Pulsed Field Gradients (PFGs) have become ubiquitous tools not only for Magnetic Resonance Imaging (MRI), but also for NMR experiments designed to study translational diffusion, for spatial encoding in ultra-fast spectroscopy, for the selection of desirabl ...

2008

Some Recovery Conditions for Basis Learning by L1-Minimization

Rémi Gribonval, Karin Schnass

Many recent works have shown that if a given signal admits a sufficiently sparse representation in a given dictionary, then this representation is recovered by several standard optimization algorithms, in particular the convex

\ell^1

minimization approac ...

2008

A Notion of Glue Expressiveness for Component-Based Systems

Joseph Sifakis, Simon Bliudze

Comparison between different formalisms and models is often by flattening structure and reducing them to behaviourally equivalent models e.g. automaton and Turing machine. This leads to a notion of expressiveness which is not adequate for component-based s ...

Springer2008

Construction of wavelet bases that mimic the behaviour of some given operator - art. no. 67010S

Michaël Unser, Dimitri Nestor Alice Van De Ville, Thierry Blu, Ildar Khalidov

Probably, the most important property of wavelets for signal processing is their multiscale derivative-like behavior when applied to functions. In order to extend the class of problems that can profit of wavelet-based techniques, we propose to build new fa ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2007

Construction of Wavelet Bases That Mimic the Behaviour of Some Given Operator

Michaël Unser, Dimitri Nestor Alice Van De Ville, Thierry Blu, Ildar Khalidov

Probably the most important property of wavelets for signal processing is their multiscale derivative-like behavior when applied to functions. In order to extend the class of problems that can profit of wavelet-based techniques, we propose to build new fam ...

SPIE2007

Generic representations of orthogonal groups: the mixed functors

Christine Vespa

In previous work, we defined the category of functors F-quad, associated to F-2-vector spaces equipped with a nondegenerate quadratic form. In this paper, we define a special family of objects in the category F-quad, named the mixed functors. We give the c ...

2007

Enantioselective Palladium-Catalyzed Hydrosilylation of Styrene: Detailed Reaction Mechanism from First-Principles and Hybrid QM/MM Molecular Dynamics Simulations

Ursula Röthlisberger

The mechanism of the enantioselective hydrosilylation of styrene catalyzed by Pd0 species generated in situ from dichloro[1-[(R)-1-[(S)-2(diphenylphosphino-kP)ferrocenyl]ethyl]-3-trimethylphenyl-5-1H-pyrazole-kN]palladium (1) was investigated in detail thr ...

2004

Non-rigid registration of serial intra-operative images for automatic brain shift estimation

Valérie Duay

Measurement of intra-operative brain motion is important to provide boundary conditions to physics-based deformation models that can be used to register pre- and intra-operative information. In this paper we present and test a technique that can be used to ...

SPIE2003

Multidomain pseudospectral computation of Maxwell's equations in 3-D general curvilinear coordinates

Jan Sickmann Hesthaven

We discuss the numerical solution of the 3-D Maxwell's equations in general curvilinear coordinates using a multidomain pseudospectral (Chebyshev collocation) scheme. The formulation of the equations and the method as well as the multidomain patching proce ...

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Orthogonal coordinates

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On the n-dimensional Dirichlet problem for isometric maps

Single or triple gradients?

Some Recovery Conditions for Basis Learning by L1-Minimization

A Notion of Glue Expressiveness for Component-Based Systems

Construction of wavelet bases that mimic the behaviour of some given operator - art. no. 67010S

Construction of Wavelet Bases That Mimic the Behaviour of Some Given Operator

Generic representations of orthogonal groups: the mixed functors

Enantioselective Palladium-Catalyzed Hydrosilylation of Styrene: Detailed Reaction Mechanism from First-Principles and Hybrid QM/MM Molecular Dynamics Simulations

Non-rigid registration of serial intra-operative images for automatic brain shift estimation

Multidomain pseudospectral computation of Maxwell's equations in 3-D general curvilinear coordinates

A Notion of Glue Expressiveness for Component-Based Systems

Generic representations of orthogonal groups: the mixed functors

Non-rigid registration of serial intra-operative images for automatic brain shift estimation

On the n-dimensional Dirichlet problem for isometric maps

Construction of wavelet bases that mimic the behaviour of some given operator - art. no. 67010S

Construction of Wavelet Bases That Mimic the Behaviour of Some Given Operator

Some Recovery Conditions for Basis Learning by L1-Minimization

Enantioselective Palladium-Catalyzed Hydrosilylation of Styrene: Detailed Reaction Mechanism from First-Principles and Hybrid QM/MM Molecular Dynamics Simulations

Multidomain pseudospectral computation of Maxwell's equations in 3-D general curvilinear coordinates

Single or triple gradients?