Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Soran Marzang"'
Publikováno v:
Journal of Intelligent & Fuzzy Systems. 43:2231-2241
Classic data envelopment analysis (DEA) is a linear programming method for evaluating the relative efficiency of decision making units (DMUs) that uses multiple inputs to produce multiple outputs. In the classic DEA model inputs and outputs of DMUs a
Publikováno v:
Czechoslovak Mathematical Journal. 69:665-670
We show that a finite nonabelian characteristically simple group G satisfies n = ∣π(G)∣ + 2 if and only if G ≅ A5, where n is the number of isomorphism classes of derived subgroups of G and π(G) is the set of prime divisors of the group G. Al
Publikováno v:
Results in Mathematics. 73
Let G be a group, $$m\ge 2$$ and $$n\ge 1$$ . We say that G is an $$\mathcal {T}(m,n)$$ -group if for every m subsets $$X_1, X_2, \dots , X_m$$ of G of cardinality n, there exists $$i\ne j$$ and $$x_i \in X_i, x_j \in X_j$$ such that $$x_ix_j=x_jx_i$