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All Journal Mathvision : Jurnal Matematika Jurnal Cendekia : Media Komunikasi Penelitian dan Pengembangan Pendidikan Islam
Ahmad Isro'il
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Journal : Mathvision : Jurnal Matematika

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BEBERAPA GENERALISASI TEOREMA TITIK TETAP CARISTI UNTUK JARAK-ω Ahmad Khairul Umam; Pukky Tetralian Bantining Ngastiti; Ahmad Isro'il
MathVisioN Vol 6 No 2 (2024): September 2024
Publisher : Prodi Matematika FMIPA Unirow Tuban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55719/mv.v6i2.1280

Abstract

Caristi’s fixed point theorem is generalization of Banach’s fixed point. Banach’s fixed point theorem guarantee existence and uniqueness fixed point in complete space and contractive function. Caristi’s fixed point uses function f:X→X and lower semicontinuous function ψ:X→[0,∞). In this paper, we discuss some generalization of Caristi’s fixed point theorem. We also use ω-distance as distance function. We discuss function T:X→2^X where 2^X are collection of all nonempty subsets of X. And then we use function c:[0,∞)→(0,∞) that is nondecreasing function.
Co-Authors Ahmad Khairul Umam PUJIONO Pukky Tetralian Bantining Ngastiti Sukiyanto