Mathematics Letters

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Volume 3, Issue 4, August 2017

  • Some Induced Averaging Aggregation Operators Based on Pythagorean Fuzzy Numbers

    Khaista Rahman, Saleem Abdullah, Asad Ali, Fazli Amin

    Issue: Volume 3, Issue 4, August 2017
    Pages: 40-45
    Received: 29 May 2017
    Accepted: 10 August 2017
    Published: 6 September 2017
    DOI: 10.11648/j.ml.20170304.11
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    Abstract: In this paper we present two new types aggregation operators such as, induced Pythagorean fuzzy ordered weighted averaging aggregation operator and induced Pythagorean fuzzy hybrid averaging aggregation operator. We also discuss of important properties of these proposed operators and construct some examples to develop these operators.
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  • Extremal Chemical Trees of the First Reverse Zagreb Alpha Index

    Süleyman Ediz

    Issue: Volume 3, Issue 4, August 2017
    Pages: 46-49
    Received: 12 May 2017
    Accepted: 28 August 2017
    Published: 26 September 2017
    DOI: 10.11648/j.ml.20170304.12
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    Abstract: Topological indices have important effect to develop chemical sciences by using graph invariants. The Zagreb indices are the most used topological indices in mathematical chemistry literature. Novel forms of Zagreb indices have been extensively defined in recent times. One of the latest version of the Zagreb indices is the reverse Zagreb alpha inde... Show More
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