On - and -decomposable finite groups
Ali Reza Ashrafi, Yao Qing Zhao (2003)
Mathematica Slovaca
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Ali Reza Ashrafi, Yao Qing Zhao (2003)
Mathematica Slovaca
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Maier, Rudolf, Rogério, José Robério (1999)
Beiträge zur Algebra und Geometrie
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Antonio Vera López, Lourdes Ortiz de Elguea (1989)
Extracta Mathematicae
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Carlo Casolo (1994)
Manuscripta mathematica
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Brison, Owen J. (1990)
Portugaliae mathematica
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Carlo Casolo, Silvio Dolfi (1996)
Rendiconti del Seminario Matematico della Università di Padova
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Alexander Fel'shtyn (2009)
Banach Center Publications
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It is proved for Abelian groups that the Reidemeister coincidence number of two endomorphisms ϕ and ψ is equal to the number of coincidence points of ϕ̂ and ψ̂ on the unitary dual, if the Reidemeister number is finite. An affirmative answer to the bitwisted Dehn conjugacy problem for almost polycyclic groups is obtained. Finally, we explain why the Reidemeister numbers are always infinite for injective endomorphisms of Baumslag-Solitar groups.
Vera López, Antonio, Ortiz de Elguea, Lourdes (1990)
Portugaliae mathematica
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