Volume 54, Issue 1

 

ارسال های اخیر

  • On the resolution of LP-FRE defined by the convex combination operator 

    Ghodousian, Amin؛ hadadian, parsa (University of Tehran, 2022-06-01)
    In this paper, a linear programming problem is investigated in which the feasible region is formed as a special type of fuzzy relational equalities (FRE). In this type of FRE, fuzzy composition is considered as the convex ...

  • Optimizing Insurance Contract for a two-level two-period Supply Chain 

    Hatami Sharif Abadi, Saleh؛ Hosseini Nasab, Hasan؛ Fakhrzad, Mohammad Bagher؛ Khademi Zarei, Hasan (University of Tehran, 2022-06-01)
    We can apply any method for organizing a supply chain, but contracting is more viable. Among many contracts that does so, the Insurance contract is more efficient. The problem is tuning the contract's parameters (for a ...

  • Speeding up the Arc Consistency algorithm in Constraint Satisfaction Problems: A New Modification of AC-3 

    Shokri Kalandaragh,, Yaser (University of Tehran, 2022-06-01)
    Dealing with constraints is always very common in real-world implementation issues. Search algorithms for real problems are also no exception. Because of the constraints in search problems (named Constraint Satisfaction ...

  • An iterative method and maximal solution of Coupled algebraic Riccati equations 

    Alimorad, Hajar (University of Tehran, 2022-06-01)
    Coupled Riccati equation has widely been applied to various engineering areas such as jump linear quadratic problem, particle transport theory, and Wiener–Hopf decomposition of Markov chains. In this paper, we consider an ...

  • Relative Clustering Coefficient 

    Touli, Elena؛ Lindberg, Oscar (University of Tehran, 2022-06-01)
    In this paper, we relatively extend the definition of the global clustering coefficient to another clustering, which we call it \emph{relative clustering coefficient}. The idea of this definition is to ignore the edges in ...

  • Comparison of solutions resulted from direct problems formulated as FRE 

    Ghodousian, Amin؛ Zal, Sara (University of Tehran, 2022-06-01)
    In this paper, we investigate direct solution of FRE and compare their results with expected real consequences. We give an applied example formulated by a FRE problem and show that FRE defined by maximum t-conorm and an ...

  • A Survey on Tenacity Parameter\\Part II 

    Moazzami, Dara؛ Khoshnood, Asieh (University of Tehran, 2022-06-01)
    In this paper, we study the edge tenacity of graphs. We will be primarilyinterested in edge-tenacious graphs, which can be considered very stable and are somewhat analogous in edge tenacityto honest graphs in edge-integrity. ...

  • $4$-total mean cordial labeling of union of some graphs with the complete bipartite graph $K_{2,n}$ 

    Ponraj, R؛ SUBBULAKSHMI, S؛ Somasundaram, S (University of Tehran, 2022-06-01)
    Let $G$ be a graph. Let $f:V\left(G\right)\rightarrow \left\{0,1,2,\ldots,k-1\right\}$ be a function where $k\in \mathbb{N}$ and $k>1$. For each edge $uv$, assign the label $f\left(uv\right)=\left\lceil \frac{f\left(u\ri ...

  • A comparison between the resolution and linear optimization of FREs defined by product t-norm and geometric mean operator 

    Ghodousian, Amin؛ Falahatkar, Sara (University of Tehran, 2022-06-01)
    In this paper, a type of fuzzy system is firstly investigated whereby the feasible region is defined by the fuzzy relational equalities and the geometric mean as fuzzy composition. Some related basic and theoretical ...

  • Pair mean cordial labeling of graphs 

    Ponraj, R؛ Prabhu, S (University of Tehran, 2022-06-01)
    In this paper, we introduce a new graph labeling called pair mean cordial labeling of graphs. Also, we investigate the pair mean cordiality of some graphs like path, cycle, complete graph, star, wheel, ladder, and comb.