271 citations
- Centre National de la Recherche ScientifiqueFR3 papers
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- Institute of Theoretical PhysicsCN3 papers
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4 papers · 1 filter
Two-dimensional body of maximum mean resistance
Paulo D. F. Gouveia, Alexander Plakhov, Delfim F. M. Torres
A two-dimensional body, exhibiting a slight rotational movement, moves in a rarefied medium of particles which collide with it in a perfectly elastic way. In previously realized in…
Fractional Action-Like Variational Problems
Rami Ahmad El-Nabulsi, Delfim F. M. Torres
Fractional action-like variational problems have recently gained importance in studying dynamics of nonconservative systems. In this note we address multi-dimensional fractional ac…
Fundamental Solutions of the Instationary Schrodinger Difference Operator
P. Cerejeiras, N. Vieira
In this paper we will study the existence of fundamental solutions for the explicit and implicit backward time dependent Schodinger equation, via discrete Fourier transform and its…
Necessary Optimality Conditions for Fractional Action-Like Integrals of Variational Calculus with Riemann-Liouville Derivatives of Order
Rami Ahmad El-Nabulsi, Delfim F. M. Torres
We derive Euler-Lagrange type equations for fractional action-like integrals of the calculus of variations which depend on the Riemann-Liouville derivatives of order , $α> 0…