Common fixed points of Greguš type multi-valued mappings

R. A. Rashwan; Magdy A. Ahmed

Archivum Mathematicum (2002)

  • Volume: 038, Issue: 1, page 37-47
  • ISSN: 0044-8753

Abstract

top
This work is considered as a continuation of [19,20,24]. The concepts of δ -compatibility and sub-compatibility of Li-Shan [19, 20] between a set-valued mapping and a single-valued mapping are used to establish some common fixed point theorems of Greguš type under a φ -type contraction on convex metric spaces. Extensions of known results, especially theorems by Fisher and Sessa [11] (Theorem B below) and Jungck [16] are thereby obtained. An example is given to support our extension.

How to cite

top

Rashwan, R. A., and Ahmed, Magdy A.. "Common fixed points of Greguš type multi-valued mappings." Archivum Mathematicum 038.1 (2002): 37-47. <http://eudml.org/doc/248950>.

@article{Rashwan2002,
abstract = {This work is considered as a continuation of [19,20,24]. The concepts of $\delta $-compatibility and sub-compatibility of Li-Shan [19, 20] between a set-valued mapping and a single-valued mapping are used to establish some common fixed point theorems of Greguš type under a $\phi $-type contraction on convex metric spaces. Extensions of known results, especially theorems by Fisher and Sessa [11] (Theorem B below) and Jungck [16] are thereby obtained. An example is given to support our extension.},
author = {Rashwan, R. A., Ahmed, Magdy A.},
journal = {Archivum Mathematicum},
keywords = {common fixed points; $\delta $-compatible mappings; sub-compatible mappings; complete convex metric spaces; common fixed points; -compatible mappings; sub-compatible mappings; complete convex metric spaces},
language = {eng},
number = {1},
pages = {37-47},
publisher = {Department of Mathematics, Faculty of Science of Masaryk University, Brno},
title = {Common fixed points of Greguš type multi-valued mappings},
url = {http://eudml.org/doc/248950},
volume = {038},
year = {2002},
}

TY - JOUR
AU - Rashwan, R. A.
AU - Ahmed, Magdy A.
TI - Common fixed points of Greguš type multi-valued mappings
JO - Archivum Mathematicum
PY - 2002
PB - Department of Mathematics, Faculty of Science of Masaryk University, Brno
VL - 038
IS - 1
SP - 37
EP - 47
AB - This work is considered as a continuation of [19,20,24]. The concepts of $\delta $-compatibility and sub-compatibility of Li-Shan [19, 20] between a set-valued mapping and a single-valued mapping are used to establish some common fixed point theorems of Greguš type under a $\phi $-type contraction on convex metric spaces. Extensions of known results, especially theorems by Fisher and Sessa [11] (Theorem B below) and Jungck [16] are thereby obtained. An example is given to support our extension.
LA - eng
KW - common fixed points; $\delta $-compatible mappings; sub-compatible mappings; complete convex metric spaces; common fixed points; -compatible mappings; sub-compatible mappings; complete convex metric spaces
UR - http://eudml.org/doc/248950
ER -

References

top
  1. Solvability of Hammerstein integral equation in the class of functions of locally bounded variation, Boll. Un. Mat. Ital. 7, 5-B (1991), 893–904. (1991) MR1146779
  2. An application of a fixed point theorem to best simultaneous approximation, Approx. Theory Appl. its Appl. 10, No. 3 (1994), 1–4. (1994) MR1308834
  3. A unified approach to generalized quasi-variational inequalities, Comm. Appl. Nonlinear Anal. 4, No. 2 (1997), 103–118. (1997) MR1442102
  4. On a common fixed point theorem of a Greguš type, Publ. Inst. Math. (Beograd) 49, No. 63 (1991), 174–178. (1991) Zbl0753.54023MR1127395
  5. On Diviccaro, Fisher and Sessa open questions, Arch. Math. (Brno) 29, No.3-4 (1993), 145–152. (1993) Zbl0810.47051MR1263115
  6. On some discontinuous fixed point mappings in convex metric spaces, Czechoslovak Math. J. 43, No. 118 (1993), 319–326. (1993) Zbl0814.47065MR1211753
  7. Nonexpansive type mappings and a fixed point theorem in convex metric space, Rend. Accad. Naz. Sci. XL Mem. Math. Appl. (5) 15, fasc. 1 (1995), 263–271. (1995) MR1387560
  8. A common fixed point theorem of Greguš type for compatible mappings, Facta Univ. Ser. Math. Inform. 7 (1992), 99–106. (1992) MR1346598
  9. A common fixed point theorem of Greguš type, Publ. Math. Debrecen 34, No. 1-2 (1987), 83–89. (1987) MR0901008
  10. Common fixed points of mappings and set-valued mappings, Rostock. Math. Kolloq. 18 (1981), 69–77. (1981) Zbl0479.54025MR0655385
  11. On a fixed point theorem of Greguš, Int. J. Math. Math. Sci. 9, No. 1 (1986), 23–28. (1986) MR0837098
  12. Common fixed point theorems for weakly commuting mappings, Period. Math. Hungar. 20, No. 3 (1989), 207–218. (1989) MR1028958
  13. A fixed point theorem in Banach space, Boll. Un. Math. Ital. 17- A, No. 5 (1980), 193–198. (1980) MR0562137
  14. Fixed point theorems for nonexpansive mappings in convex metric spaces, Proc. Conference on Nonlinear Analysis 60 (1982), 179–189. (1982) MR0689554
  15. Compatible mapppings and common fixed points, Int. J. Math. Math. Sci. 9 (1986), 771–779. (1986) MR0870534
  16. On a fixed point theorem of Fisher and Sessa, Int. J. Math. Math. Sci. 13 (1990), 497–500. (1990) Zbl0705.54034MR1068012
  17. Some fixed point theorems for compatible maps, Int. J. Math. Math. Sci. 16, No. 3 (1993), 417–428. (1993) MR1225486
  18. A common fixed point theorem for a class of mappings, Indian J. Pure Appl. Math. 14 (1983), 1220–1227. (1983) MR0720454
  19. On common fixed points of single-valued mappings and set-valued mappings, J. Qufu Norm. Univ. Nat. Sci. Ed. 18, No. 1 (1992), 6–10. (1992) MR1160972
  20. Common fixed point theorems for (sub) compatible and set-valued generalized nonexpansive mappings in convex metric spaces, Appl. Math. Mech. 14, No. 7 (1993), 685–692. (1993) MR1247315
  21. A note on fixed point theorem of Greguš, Math. Japon. 33 (1988), 745–749. (1988) MR0972387
  22. Common fixed points of Greguš type mappings, Glas. Math. 30, No. 50 (1995), 335–341. (1995) MR1381358
  23. Common fixed point theorems with applications in dynamic programming, Glas. Math. 31, No. 51 (1996), 321–328. (1996) MR1444983
  24. Common fixed points for generalized contraction mappings in convex metric spaces, J. Qufu Norm. Univ. Ed. 24, No. 3 (1998), 15–21. (1998) MR1665104
  25. On a weak commutativity condition of mappings in fixed point considerations, Publ. Inst. Math. (Beograd) 32, No. 46 (1982), 149–153. (1982) Zbl0523.54030MR0710984
  26. Common fixed points of two mappings on Banach spaces, J. Math. Phys. Sci. 18 (1984), 353–360. (1984) MR0803962
  27. Common fixed point theorem with a weak commutativity condition, Glas. Mat. 21, No. 41 (1986), 225–235. (1986) MR0866767
  28. A convexity in metric space and nonexpansive mappings, Kodai Math. Semin. Rep. 22 (1970), 142–149. (1970) Zbl0268.54048MR0267565

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.