Some fixed point results for cone metric space

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Some fixed point results for cone metric space

  1. 1. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 69 Some fixed Point Results for cone metric space Rakesh Shrivastava1 , Ramakant Bhardwaj2 , Shyam Patkar3 and Sanjay Choudhary4 1. JNCT Bhopal (M.P) 2. Truba Institute of Engineering & Information Bhopal (M.P) 3. Truba Institute of Engineering & Information Bhopal (M.P) 4. Govt. NMV Hoshangabad (M.P) Abstract In the Present paper we prove some fixed point theorems in cone metric space our result generalizes the previous result of mathematicians. Keywords:- fixed point cone, metric space, Altering function. 2. Introduction & Preliminaries Since the Banach contraction Principles several types of generalization contraction mapping on metric spaces have appeared, one such method of generalization is altering the distances. Delbosco [2] and skof [3] have established fixed point theorems for self maps of complete matric spaces by altering the distances between the points with the use of a positive real valued function Hunage and zhag [1] introduction the concept of cone metric space by replacing the set of real numbers by an ordered Banach space and obtained some fixed point results. Recently Asadi and Soleimani [7] prove some fixed point results on cone metric space by using altering distance function and the (ID) property of partially ordered cone metric space (see[7]). We are giving some new results by introducing a vector valued function in cone metric space which has similarity with altering function it becomes the generalization of altering function in view of cone used in place of positive read numbers as well as the constraints used for self map of cone metric spaces. Definition-: Let (X,d) be a cone metric space a self mapping T on x is called an almost jaggi contraction if it satisfies the following condition. For all where and with Theorem 3.1 Let be a complete cone metric space and p a normal cone with normal constant M, Let be on almost jaggi contraction for all where and with then T has a unique fixed point in X. Proof:- choose set
  2. 2. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 70 ( Case Ist when Then ( Case-II when Then. We get Then both case, and by induction.
  3. 3. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 71 We get II which implies that hence is a Cauchy sequence so by completeness of X this sequence must be convergent in X So using the condition of normality of cone As we have II hence we get Theorem (3.2) Let (X,d) be a complete cone metric space and P a normal cone with normal constant M, suppose the mapping F,G, is called on almost jaggi contraction if it satisfies the following condition
  4. 4. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 72 For all then each of F,G has a; unique fixed point and these two fixed points coincide such that Case I when. Than Case II. When
  5. 5. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 73 Where In both case we get Then + Case-I when Then
  6. 6. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 74 Case II – when In both case we get (B) Add Equation (A) and (B) we get We get is a Cauchy sequence, so by completeness of X this sequence must be convergent in X , we shall prove that u is a common fixed of F and G.
  7. 7. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 75 So using the condition of normality of cone U is a fixed point of G. Similarly So using the condition of normality of cone
  8. 8. Journal of Information Engineering and Applications www.iiste.org ISSN 2224-5782 (print) ISSN 2225-0506 (online) Vol.4, No.7, 2014 76 REFERENCES [1] B. Fisher, Common Fixed Points and Constant Mappings Satisfying Rational Inequality, (Math. Sem. Notes (Univ Kobe)(1978). [2] B. Fisher, M.S Khan, Fixed points, common fixed points and constant mappings, Studia sci. Math. Hungar. 11(1978) 467-470. [3] L.G Huang and X. Zhang, Cone metric spaces and fixed point theorems of contractive mappings, Journal of Mathematical Analysis and Applications, 332(2) (2007) 1468- 1476. [4] S. Rezapour. R. Hamilbarani, Some note on the paper cone metric spaces and fixed point theorems of contractive mappings, J. Math. Anal. Appl. 345 (2008) 719 – 724. [5] J.O. Olaleru, Some Generalizations of Fixed Point Theorems in Cone Metric Spaces, Fixed Point Theory and Applications, (2009) Article ID 65794. [6] Xialoyan Sun, Yian Zhao, Guotao Wang, New common fixed point theorems for maps on cone metric spaces, Applied Mathematics Letters 23(2010) 1033- 1037. [7] Mehdi Asadi, S. Mansour Vaezpour, Vladimir Rakocevic, Billy E. Rhoades, Fixed point theorems for contractive mapping in cone metric spaces, Math. Commun. 16 (2011) 147-155. [8] Mahpeyker Ozturk On, Metin Basarr, Some common fixed point theorems with rational expressions on cone metric spaces over a Banach algebra, Hacettepe Journal of Mathematics and Statistics, 414 (2) (2012) 211-222. [9] Muhammad Arshad, Erdal Karapinar Jamshaid Ahmad, Some Unique Fixed Point Theorems For Rational Contractions In Partially Ordered Metric Spaces, Journal of Inequalities and Applications 2013. 2013:248 doi:10.1186/1029-242X-2013-248. [10] D.S. Jaggi, Some unique fixed point theorems, Indian J. Pure Appl. Math. 8(1977) 223-230. [11] Dass, B.K., Gupta, S, An extension of Banach contraction principle through rational expression. Indian J. Pure Apl. Math. 6,(1975) 1455-1458. [12] Uthay Kumar, R, Prabhakar, G.Arockia “Common Fixed Point Theorem in cone metric Space for rational contradion”,International Journal of analysis and application vol3, No2 (2013) 112-118.
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