Volume 7, Issue 4

 

ارسال های اخیر

  • Directed zero-divisor graph and skew power series rings 

    Hashemi, Ebrahim؛ Yazdanfar, Marzieh؛ Alhevaz, Abdollah (University of Isfahan, 2018-12-01)
    ‎Let $R$ be an associative ring with identity and $Z^{ast}(R)$ be its set of non-zero zero-divisors‎. ‎Zero-divisor graphs of rings are well represented in the literature of commutative and non-commutative rings‎. ‎The ...

  • Refinements of the Bell and Stirling numbers 

    Wakhare, Tanay (University of Isfahan, 2018-12-01)
    ‎‎We introduce new refinements of the Bell‎, ‎factorial‎, ‎and unsigned Stirling numbers of the first and second kind that unite the derangement‎, ‎involution‎, ‎associated factorial‎, ‎associated Bell‎, ‎incomplete ...

  • On the minimum stopping sets of product codes 

    Hivadi, Morteza؛ Zare Chavoshi, Akbar (University of Isfahan, 2018-12-01)
    It is shown that the certain combinatorial structures called stopping sets have the important role in analysis of iterative decoding. In this paper, the number of minimum stopping sets of a product code is determined by ...

  • Degree resistance distance of trees with some given parameters 

    He, Fangguo؛ Jiang, Xinnong (University of Isfahan, 2018-12-01)
    The degree resistance distance of a graph $G$ is defined as $D_R(G)=sum_{i

  • A note on $1$-factorizability of quartic supersolvable Cayley graphs 

    Ahanjideh, Milad؛ Iranmanesh, Ali (University of Isfahan, 2018-12-01)
    Alspach et al‎. ‎conjectured that every quartic Cayley graph on an even solvable group is $1$-factorizable‎. ‎In this paper‎, ‎we verify this conjecture for quartic Cayley graphs on supersolvable groups of even order‎.