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math.NA2024
Fast construction of the discrete Green operator for a second order ordinary differential equation
Jan Blechta, Vít Průša, Ladislav Trnka +1
We consider linear second order differential equation y''= f with zero Dirichlet boundary conditions. At the continuous level this problem is solvable using the Green function, and…
cond-mat.mtrl-sci2024★ 1 cited
The conclusion that metamaterials could have negative mass is a consequence of improper constitutive characterisation
David Cichra, Vít Průša, K. R. Rajagopal +2
The concept of "effective mass" is frequently used for the simplification of complex lumped parameter systems (discrete dynamical systems) as well as materials that have complicate…