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Browsing 06. Department of Mathematics by Author "Vaidya, S.K."

Browsing 06. Department of Mathematics by Author "Vaidya, S.K."

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  • Vaidya, S.K.; Jadeja, M.R. (Malaya Journal of Matematik, 2020)
    The zero divisor graph Γ(R) of a commutative ring R is a graph whose vertices are non-zero zero divisors of R and two vertices are adjacent if their product is zero. The characteristic polynomial of matrix M is defined ...
  • Vaidya, S.K.; Ajani, P.D. (Malaya Journal of Matematik, 2020)
    A dominating set S ⊆ V is said to be a restrained dominating set of graph G if every vertex not in S is adjacent to a vertex in S and also to a vertex in V − S. A set S ⊆ V is called an equitable dominating set if for ...
  • Vaidya, S.K.; Parmar, A.D. (Malaya Journal of Matematik, 2019)
    A proper k - coloring of a graph G is a function f : V(G) → {1,2,..., k} such that f(u) 6= f(v) for all uv ∈ E(G). The color class Si is the subset of vertices of G that is assigned to color i. The chromatic number χ(G) ...
  • Vaidya, S.K.; Ajani, P.D. (International Journal of Mathematics and Soft Computing, 2018)
    For a graph G = (V, E), a set S ⊆ V is a restrained dominating set if every vertex not in S is adjacent to a vertex in S and to a vertex in V − S. The smallest cardinality of a restrained dominating set of G is called ...
  • Vaidya, S.K.; Ajani, P.D. (Malaya Journal of Matematik, 2019)
    For a graph G = (V,E), a set S ⊆ V is a restrained dominating set if every vertex not in S is adjacent to a vertex in S and also to a vertex in V −S. The minimum cardinality of a restrained dominating set of G is called ...
  • Vaidya, S.K.; Ajani, P.D. (Malaya Journal of Matematik, 2020)
    For a graph G = (V,E), a subset D of E is restrained edge dominating set of G if every edge not in D is adjacent to an edge in D as well as an edge in E −D. The restrained edge domination number of G, denoted by γre(G) is ...
  • Vaidya, S.K.; Parmar, A.D. (Malaya Journal of Matematik, 2018)
    A dominating set D of a graph G is called total if every vertex of V (G) is adjacent to at least one vertex of D, equivalently if N (D)= V (G) then D is called total dominating set. A dominating set D is called total ...
  • Vaidya, S.K.; Parmar, A.D. (International Journal of Mathematics and Soft Computing, 2017)
    If G is a graph with vertex set V (G) then dominating set D⊆ V (G) is called total if every vertex of V (G) is adjacent to at least one vertex of D while it is called equitable if for every vertex u in V (G)− D there exists ...
  • Vaidya, S.K.; Parmar, A.D. (Journal of Applied Science and Computations, 2019-05)
    A subset S of vertices of G is an open packing of G if the open neighborhoods of the vertices of S are pairwise disjoint in G while open packing number of G is the maximum cardinality among all the open packing sets of ...
  • Vaidya, S.K.; Ajani, P.D. (Journal of Computational Mathematica, 2017)
    A dominating set S ⊆ V (G)of a graph G is called restrained dominating set if every vertex in V (G) - S is adjacent to a vertex in S and to a vertex in V (G) - S. The restrained domination number of G, denoted by γ_r (G), ...
  • Vaidya, S.K.; Ajani, P.D. (Journal of Scientific Research, 2021)
    For a graph G=(V, E), a set S⊆ V (S⊆ E) is a restrained dominating (restrained edge dominating) set if every vertex (edge) not in S is adjacent (incident) to a vertex (edge) in S and to a vertex (edge) in V-S (ES). The ...
  • Vaidya, S.K.; Parmar, A.D. (International Journal of Mathematical Sciences and Engineering Applications, 2019-06)
    A vertex dominating set D of V (G) is called a chromatic transversal dominating set of G if D intersects every color class of G. The minimum cardinality of D is called a chromatic transversal domination number of G. In ...
  • Vaidya, S.K.; Parmar, A.D. (Journal of Scientific Research, 2018)
    If for any total dominating set D with ν ∈ V (G) − D there exists a vertex u ∈ D such that uν ∈ E (G) and |d(ν)−d(u)| ≤ 1 then D is called the total equitable dominating set. The minimum cardinality of the total equitable ...

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