Results 21 to 30 of about 32,112 (309)

RTTOV-gb – adapting the fast radiative transfer model RTTOV for the assimilation of ground-based microwave radiometer observations [PDF]

open access: yesGeoscientific Model Development, 2016
Ground-based microwave radiometers (MWRs) offer a new capability to provide continuous observations of the atmospheric thermodynamic state in the planetary boundary layer. Thus, they are potential candidates to supplement radiosonde network and satellite
F. De Angelis   +4 more
doaj   +1 more source

On Mordell-Weil groups of Jacobians over function fields [PDF]

open access: yes, 2011
We study the arithmetic of abelian varieties over $K=k(t)$ where $k$ is an arbitrary field. The main result relates Mordell-Weil groups of certain Jacobians over $K$ to homomorphisms of other Jacobians over $k$. Our methods also yield completely explicit
Ulmer, Douglas
core   +1 more source

Complex Eigenvalue Analysis of Multibody Problems via Sparsity-Preserving Krylov–Schur Iterations

open access: yesMachines, 2023
In this work, we discuss the numerical challenges involved in the computation of the complex eigenvalues of damped multi-flexible-body problems. Aiming at the highest generality, the candidate method must be able to deal with arbitrary rigid body modes ...
Dario Mangoni   +2 more
doaj   +1 more source

Coverings of curves of genus 2 [PDF]

open access: yes, 2000
We shall discuss the idea of finding all rational points on a curve C by first finding an associated collection of curves whose rational points cover those of C.
Flynn, E. V.
core   +1 more source

On local quasi efficient solutions for nonsmooth vector optimization problems

open access: yesCroatian Operational Research Review, 2020
We are interested in local quasi efficient solutions for nonsmooth vector optimization problems under new generalized approximate invexity assumptions.
Mohsine Jennane   +2 more
doaj   +1 more source

The Jacobian algebras [PDF]

open access: yesJournal of Pure and Applied Algebra, 2009
The Jacobian algebras are introduced and their various properties are studied.
openaire   +4 more sources

On the Robot Singularity: A Novel Geometric Approach

open access: yesInternational Journal of Advanced Robotic Systems, 2012
This paper addresses a novel geometric analysis method of the singularity and kinestatic characteristics of robots. For non-redundant robots, there exist two uniquely determined Jacobians – the screw-based Jacobian and the reciprocal Jacobian.
Man Bok Hong
doaj   +1 more source

A Change of Variables to the Dual and Factorization of Composite Anomalous Jacobians [PDF]

open access: yes, 1995
Changes of variables giving the dual model are constructed explicitly for sigma-models without isotropy. In particular, the jacobian is calculated to give the known results.
A. Giveon   +10 more
core   +3 more sources

Regularity of Jacobians by subdeterminants

open access: yesJournal of Function Spaces and Applications, 2004
Some regularity results for the Jacobian determinant Ju of a mapping u∈W1,  n-1(Ω, Rn), having the cofactor matrix of Du in Ln/n-1(Ω), in Hardy-Orlicz spaces are given.
Anna Verde
doaj   +1 more source

Extended Kalman Filter with Reduced Computational Demands for Systems with Non-Linear Measurement Models

open access: yesSensors, 2020
The paper presents a method of computational complexity reduction in Extended Kalman Filters dedicated for systems with non-linear measurement models.
Piotr Kaniewski
doaj   +1 more source

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