Ishak Altun

Prof. Ishak Altun

Department of Mathematics, Faculty of Science and Arts, Kırıkkale University, Yahsihan, Kırıkkale 71450, Turkey
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Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 December 2010 in Topology and its Applications
Verified
Journal Article
Closed access
IAIshak Altun
Ishak Altun
FSFerhan Sola
Ferhan Sola
HSHakan Simsek
Hakan Simsek

28 December 2010 in Fixed Point Theory and Applications
Verified
Journal Article
Open access
PDF file
IAIshak Altun
Ishak Altun
AEAli ERDURAN
Ali ERDURAN
Matthews (1994) introduced a new distance "Equation missing"<!-- image only, no MathML or LaTex --> on a nonempty set "Equation missing"<!-- image only, no MathML or LaTex -->, which is called partial metric. If "Equation missing"<!-- image only, no MathML or LaTex --> is a partial metric space, then "Equation missing"<!-- image only, no MathML or LaTex --> may not be zero for "Equation missing"<!-- image only, no MathML or LaTex -->. In the present paper, we give some fixed point results on these interesting spaces.

21 January 2010 in Fixed Point Theory and Applications
Verified
Journal Article
Open access
PDF file
IAIshak Altun
Ishak Altun
HSHakan Simsek
Hakan Simsek
We present some fixed point results for nondecreasing and weakly increasing operators in a partially ordered metric space using implicit relations. Also we give an existence theorem for common solution of two integral equations.

1 March 2010 in Applied Mathematics Letters
Verified
Journal Article
Closed access
IAIshak Altun
Ishak Altun
Boško DamjanovićBoško Damjanović
Boško Damjanović
DDDragan Djorić
Dragan Djorić

1 January 2014 in Filomat
Verified
Journal Article
Open access
GMGülhan Mınak
Gülhan Mınak
AHAsuman Helvacı
Asuman Helvacı
IAIshak Altun
Ishak Altun
Recently, Wardowski [15] introduced the concept of F-contraction on complete metric space. This type contraction is proper generalization of ordinary contraction. In the present paper, we give some fixed point results for generalized F-contractions including Ciric type generalized F-contraction and almost F-contraction on complete metric space. Also, we give some illustrative examples.

1 February 2010 in Nonlinear Analysis
Verified
Journal Article
Closed access
SSShaban Sedghi
Shaban Sedghi
IAIshak Altun
Ishak Altun
NSNabi Shobe
Nabi Shobe