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  • Additive maps on matrix algebras preserving invertibility or singularity
    Fošner, Ajda ; Šemrl, Peter
    We characterize the additive singularity preserving almost surjective maps on ▫$M_n(F)$▫, the algebra of all ▫n\times n$▫ matrices over a field F with char ▫$F=0▫$. We also describe additive ... invertibility preserving surjective maps on ▫$M_n(F)$▫ and give examples showing that all the assumptions in these two theorems are indispensable.
    Source: Acta mathematica Sinica. English series. - ISSN 1439-8516 (Vol. 21, iss. 4, 2005, str. 681-684)
    Type of material - article, component part ; adult, serious
    Publish date - 2005
    Language - english
    COBISS.SI-ID - 14091784