Motivated by a classical result of Finn and Osserman (J Anal Math 343(12):351–364, 1964), who proved that the Jenkins–Serrin graph over square inscribed in unit disk is extremal for Gaussian curvature point O (so-called centre) minimal graphs above center 0 disk, provided tangent plane horizontal, we ask answer to question concerned "second derivative" such its at zero. We prove extremals are c...

Zero point problems of the sum of two monotone mappings and fixed point problems of a strictly pseudocontractive mapping are investigated‎. ‎A strong convergence theorem for the common solutions of the problems is established in the framework of Hilbert spaces‎.