The Stacks project

\begin{equation*} \DeclareMathOperator\Coim{Coim} \DeclareMathOperator\Coker{Coker} \DeclareMathOperator\Ext{Ext} \DeclareMathOperator\Hom{Hom} \DeclareMathOperator\Im{Im} \DeclareMathOperator\Ker{Ker} \DeclareMathOperator\Mor{Mor} \DeclareMathOperator\Ob{Ob} \DeclareMathOperator\Sh{Sh} \DeclareMathOperator\SheafExt{\mathcal{E}\mathit{xt}} \DeclareMathOperator\SheafHom{\mathcal{H}\mathit{om}} \DeclareMathOperator\Spec{Spec} \newcommand\colim{\mathop{\mathrm{colim}}\nolimits} \newcommand\lim{\mathop{\mathrm{lim}}\nolimits} \newcommand\Qcoh{\mathit{Qcoh}} \newcommand\Sch{\mathit{Sch}} \newcommand\QCohstack{\mathcal{QC}\!\mathit{oh}} \newcommand\Cohstack{\mathcal{C}\!\mathit{oh}} \newcommand\Spacesstack{\mathcal{S}\!\mathit{paces}} \newcommand\Quotfunctor{\mathrm{Quot}} \newcommand\Hilbfunctor{\mathrm{Hilb}} \newcommand\Curvesstack{\mathcal{C}\!\mathit{urves}} \newcommand\Polarizedstack{\mathcal{P}\!\mathit{olarized}} \newcommand\Complexesstack{\mathcal{C}\!\mathit{omplexes}} \newcommand\Pic{\mathop{\mathrm{Pic}}\nolimits} \newcommand\Picardstack{\mathcal{P}\!\mathit{ic}} \newcommand\Picardfunctor{\mathrm{Pic}} \newcommand\Deformationcategory{\mathcal{D}\!\mathit{ef}} \end{equation*}

Bibliography entry Baer

author
Baer, Reinhold
title
Abelian groups that are direct summands of every containing abelian group
year
1940
journal
Bull. Amer. Math. Soc.
volume
46
pages
800–806
url
https://dx.doi.org/10.1090/S0002-9904-1940-07306-9

@ARTICLE{Baer,
    AUTHOR = "Baer, Reinhold",
    TITLE = "Abelian groups that are direct summands of every containing abelian group",
    JOURNAL = "Bull. Amer. Math. Soc.",
    VOLUME = "46",
    YEAR = "1940",
    PAGES = "800--806",
    ISSN = "0002-9904",
    URL = "https://dx.doi.org/10.1090/S0002-9904-1940-07306-9"
}

      

This item is referenced in 1 tag:

  • in Lemma 19.2.6: Baer's criterion, which cites Theorem 1 of Baer