@misc{Bednarczuk_Ewa_M._Autor_The_2006, author={Bednarczuk, Ewa M. Autor and Przybyła, Maciej. Autor}, copyright={Creative Commons Attribution BY 4.0 license}, address={Warszawa}, journal={Raport Badawczy = Research Report}, howpublished={online}, year={2006}, publisher={Instytut Badań Systemowych. Polska Akademia Nauk}, publisher={Systems Research Institute. Polish Academy of Sciences}, language={eng}, abstract={We prove a new version of the vector-valued Ekeland variational principle for cones with nonempty interiors. The constructed solution remains efficient for function f perturbed in different directions. Moreover, it is proved that the obtained solution is a sharp efficient solution of order 1 for all perturbed functions.}, title={The vector-valued variational principle in Banach spaces ordered by cones with nonempty interior}, type={Text}, keywords={Sharp solutions, Vector-valued variational principle, Bishop-phelps cone}, }