%0 Journal Article %T Metahamiltonian groups and related topics %A Maria De Falco %A Francesco de Giovanni %A Carmela Musella %J International Journal of Group Theory %D 2013 %I University of Isfahan %X A group is called metahamiltonian if all its non-abelian subgroups are normal. This aim of this paper is to provide an updated survey of researches concerning certain classes of generalized metahamiltonian groups, in various contexts, and to prove some new results. Some open problems are listed. %K Metahamiltonian group %K normalizer subgroup %K lattice property %U http://www.theoryofgroups.ir/?_action=showPDF&article=2673&_ob=d66ef73f5f08783c1a5e937dd4934f0c&fileName=full_text.pdf.