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233 papers · 1 filter
Spectral diagonal ensemble Kalman filters
Ivan Kasanický, Jan Mandel, Martin Vejmelka
A new type of ensemble Kalman filter is developed, which is based on replacing the sample covariance in the analysis step by its diagonal in a spectral basis. It is proved that thi…
Attractors and chaos of electron dynamics in electromagnetic standing wave
Timur Zh. Esirkepov, Stepan S. Bulanov, James K. Koga +5
The radiation reaction radically influences the electron motion in an electromagnetic standing wave formed by two super-intense counter-propagating laser pulses. Depending on the l…
Sample and population exponents of generalized Taylor's law
Andrea Giometto, Marco Formentin, Andrea Rinaldo +2
Taylor's law (TL) states that the variance of a non-negative random variable is a power function of its mean , i.e. . The ubiquitous empirical verification of TL, t…
Thermomechanics of damageable materials under diffusion:modeling and analysis
Tomas Roubicek, Giuseppe Tomassetti
We propose a thermodynamically consistent general-purpose model describing diffusion of a solute or a fluid in a solid undergoing possible phase transformations and damage, beside…
Structure of the nucleus of 1928+738
J. Roland, S. Britzen, E. Kun +3
Modeling of the trajectories of VLBI components ejected by the nucleus of 1928+738 shows the VLBI jet contains three families of trajectories, i.e. VLBI components are ejected from…
Finite-dimensional global attractors for parabolic nonlinear equations with state-dependent delay
Igor Chueshov, Alexander Rezounenko
We deal with a class of parabolic nonlinear evolution equations with state-dependent delay. This class covers several important PDE models arising in biology. We first prove well-p…