نتایج جستجو برای: monolithic groups
تعداد نتایج: 737089 فیلتر نتایج به سال:
given a finite non-cyclic group $g$, call $sigma(g)$ the smallest number of proper subgroups of $g$ needed to cover $g$. lucchini and detomi conjectured that if a nonabelian group $g$ is such that $sigma(g) < sigma(g/n)$ for every non-trivial normal subgroup $n$ of $g$ then $g$ is textit{monolithic}, meaning that it admits a unique minimal normal subgroup. in this paper we show how thi...
Skew morphisms, which generalise automorphisms for groups, provide a fundamental tool the study of regular Cayley maps and, more generally, finite groups with complementary factorisation $G=BY$, where $Y$ is cyclic and core-free in $G$. In this paper, we classify all examples $B$ monolithic (meaning that it has unique minimal normal subgroup, subgroup not abelian) As consequence, obtain classif...
Abstract Background & aim: There are so many studies about effect of colored drinks and mouthwashes on discoloration of different dental ceramics. However, little is known regarding the effect of colored drinks on discoloration of monolithic zirconia .The purpose of this invitro study was to evaluate the effect of different surface treament methods on color stability of monolithic zirconia....
Abstract Background and aim: Regarding the prevalence of monolithic zirconia and glazed ceramics IPS-e.max, and inadequate research on the color change of chlorhexidine and listerine mouthwashes on these two types, this study was aimed to compare the effect of these two mouthwashes on the stability of the The mentioned materials. Materials and Methods: This experimental study was carried o...
Given a finite non-cyclic group G, call σ(G) the smallest number of proper subgroups of G needed to cover G. Lucchini and Detomi conjectured that if a nonabelian group G is such that σ(G) < σ(G/N) for every non-trivial normal subgroup N of G then G is monolithic, meaning that it admits a unique minimal normal subgroup. In this paper we show how this conjecture can be attacked by the direct stud...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید