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Issue DateTitleAuthor(s)TypeAccess Type
Dec-2011Nondifferentiable variational principles in terms of a quantum operatorAlmeida, Ricardo; Torres, Delfim F. M.articlerestrictedAccess
2012Discrete Direct Methods in the Fractional Calculus of VariationsPooseh, Shakoor; Almeida, Ricardo; Torres, Delfim F. M.conferenceObjectopenAccess
Mar-2012Isoperimetric problems of the calculus of variations with fractional derivativesAlmeida, Ricardo; Ferreira, Rui A. C.; Torres, Delfim F. M.articleopenAccess
2010Fractional Euler-Lagrange differential equations via Caputo derivativesAlmeida, Ricardo; Malinowska,Agnieszka; Torres, DelfimconferenceObjectopenAccess
15-Nov-2016Modeling some real phenomena by fractional differential equationsAlmeida, Ricardo; Bastos, Nuno R. O.; Monteiro, M. Teresa T.articlerestrictedAccess
12-Jun-2020On leader-following consensus in multi-agent systems with discrete updates at random timesAlmeida, Ricardo; Girejko, Ewa; Hristova, Snezhana; Malinowska, AgnieszkaarticleopenAccess
2021Quadratic Lyapunov functions for stability of the generalized proportional fractional differential equations with applications to neural networksAlmeida, Ricardo; Agarwal, Ravi P.; Hristova, Snezhana; O’Regan, DonalarticleopenAccess
Oct-2020Fractional variational principle of Herglotz for a new class of problems with dependence on the boundaries and a real parameterAlmeida, Ricardo; Martins, NatáliaarticleembargoedAccess
2021New variational problems with an action depending on generalized fractional derivatives, the free endpoint conditions, and a real parameterAlmeida, Ricardo; Martins, NatáliaarticleopenAccess
2019A fractional measles model having monotonic real statistical data for constant transmission rate of the diseaseAlmeida, Ricardo; Qureshi, SaniaarticleopenAccess
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