Common fixed points and invariant approximation of $R$-subweakly commuting maps in convex metric spaces
Sufficient conditions for the existence of a common fixed point of $R$-subweakly commuting mappings are established within the framework of a convex metric space. As applications, we obtain various results on the best approximation for this class of mappings generalizing the results known from the literature.
English version (Springer): Ukrainian Mathematical Journal 62 (2010), no. 10, pp 1585-1596.
Citation Example: Chandok S., Narang T. D. Common fixed points and invariant approximation of $R$-subweakly commuting maps in convex metric spaces // Ukr. Mat. Zh. - 2010. - 62, № 10. - pp. 1367–1376.