Inverse problems for the volume potential
Justification of a construction of the solution of the problem on a point source of waves in a layered medium with vertical boundary.
Klima, objekt matematického zkoumání. Část 1. Matematický model klimatu
Klima, objekt matematického zkoumání. Část 2. Prediktabilita změn klimatu
Kriging and masurement errors
A linear geostatistical model is considered. Properties of a universal kriging are studied when the locations of observations aremeasured with errors. Alternative prediction procedures are introduced and their least squares errors are analyzed.
L'analyse krigeante pour le classement d'observations spatiales et multivariées
Le Simulateur de la Terre
Lie group analysis of a flow with contaminant-modified viscosity.
Linear and nonlinear approach for dem smoothening.
Linear response of the gate system for protection of the Venice Lagoon. Note I: Transverse free modes
The free oscillations of the gate system proposed [1,2] to defend the Venice Lagoon from the phenomenon of high water are analyzed. Free transverse modes of oscillations exist which may be either subharmonic or synchronous with respect to typical waves in the Adriatic sea. This result points out the need to examine whether such modes may be excited as a result of a Mathieu type resonance occurring when the gate system is forced by incident waves. The latter investigation is performed in part 2 of...
Linear response of the gate system for protection of the Venice Lagoon. Note II: Excitation of transverse suhharmonic modes
We show that the transverse subharmonic modes characterizing the free oscillations of the gate system proposed to defend the Venice Lagoon from the phenomenon of high water (see Note I[1]) can be excited when the gate system is forced by plane monochromatic waves orthogonal to the gates with the typical characteristics of large amplitude waves in the Adriatic sea close to the lagoon inlets. A linear stability analysis of the coupled motion of the system sea-gates-lagoon reveals that for typical...
Long-term global climate dynamics: a Hopf bifurcation causing recurrent ice ages.
Markov chain analysis of weekly rainfall data in determining drought-proneness.
Mathematical and numerical analysis of a stratigraphic model
In this paper, we consider a multi-lithology diffusion model used in stratigraphic modelling to simulate large scale transport processes of sediments described as a mixture of lithologies. This model is a simplified one for which the surficial fluxes are proportional to the slope of the topography and to a lithology fraction with unitary diffusion coefficients. The main unknowns of the system are the sediment thickness , the surface concentrations in lithology of the sediments at the top...
Mathematical and numerical analysis of a stratigraphic model
In this paper, we consider a multi-lithology diffusion model used in stratigraphic modelling to simulate large scale transport processes of sediments described as a mixture of L lithologies. This model is a simplified one for which the surficial fluxes are proportional to the slope of the topography and to a lithology fraction with unitary diffusion coefficients. The main unknowns of the system are the sediment thickness h, the L surface concentrations in lithology i of the sediments at the...
Mathematical foundation of flow of glaciers and large ice masses
Mathematical Modeling of Atmospheric Flow and Computation of Convex Envelopes
Atmospheric flow equations govern the time evolution of chemical concentrations in the atmosphere. When considering gas and particle phases, the underlying partial differential equations involve advection and diffusion operators, coagulation effects, and evaporation and condensation phenomena between the aerosol particles and the gas phase. Operator splitting techniques are generally used in global air quality models. When considering organic aerosol...
Mathematical problems in geophysical wave propagation.
Mathematical simulation of ground vibrations taking into account nonlinear properties under intensive influences.
Méthode de décomposition de domaine et de couplage pour des problèmes d'évolution