a Faculty of Computer Science, Bia?ystok University of Technology, 15-351 Bia?ystok, Poland b Department of Mathematics, University of Aveiro, 3810-193 Aveiro, Portugal
Abstract:
The study of fractional variational problems in terms of a combined fractional Caputo derivative is introduced. Necessary optimality conditions of Euler-Lagrange type for the basic, isoperimetric, and Lagrange variational problems are proved, as well as transversality and sufficient optimality conditions. This allows to obtain necessary and sufficient Pareto optimality conditions for multiobjective fractional variational problems.