论文信息 - Invariant approximations in CAT(0) spaces

Invariant approximations in CAT(0) spaces

Abstract Some common fixed point and invariant approximation results for CAT(0) spaces are obtained. Our results improve and extend some results of Shahzad and Markin [N. Shahzad, J. Markin, Invariant approximation for commuting mappings in hyperconvex and CAT(0) spaces, J. Math. Anal. Appl. 337 (2008) 1457–1464] and Dhompongsa, Kaewkhao, and Panyanak [S. Dhompongsa, A. Kaewkhao, B. Panyanak, Lim’s theorem for multivalued mappings in CAT(0) spaces, J. Math. Anal. Appl. 312 (2005) 478–487].

Naseer Shahzad

[1] Naseer Shahzad,et al. Invariant approximations for commuting mappings in CAT(0) and hyperconvex spaces , 2008 .

[2] William A. Kirk,et al. PROXIMINALITY IN GEODESIC SPACES , 2006 .

[3] William A. Kirk,et al. A concept of convergence in geodesic spaces , 2008 .

[4] Sompong Dhompongsa,et al. Lim's theorems for multivalued mappings in CAT(0) spaces☆ , 2005 .

[5] W. A. Kirk. Hyperconvexity of ℝ-trees , 1998, Fundamenta Mathematicae.

[6] William A. Kirk,et al. FIXED POINT THEOREMS IN CAT(0) SPACES AND R-TREES , 2009 .

[7] M. Khamsi,et al. A Selection Theorem in Metric Trees , 2006 .

[8] J. Markin. Best approximation and fixed point theorems in hyperconvex metric spaces , 2005 .

[9] E. Llorens-Fuster,et al. The fixed point property for mappings admitting a center , 2007 .

[10] William A. Kirk,et al. Fixed point theorems in R-trees with applications to graph theory , 2006 .