摘要 : <![CDATA[<Abstract ID="Abs1" Language="En" OutputMedium="All"><Heading>Abstract</Heading><Para ID="Par1">A class<InlineEquation ID="IEq3"><InlineMediaObject><ImageObject Color="BlackWhite" FileRef="MediaObjects/605_2016_978_IEq3_H... 展开 <![CDATA[<Abstract ID="Abs1" Language="En" OutputMedium="All"><Heading>Abstract</Heading><Para ID="Par1">A class<InlineEquation ID="IEq3"><InlineMediaObject><ImageObject Color="BlackWhite" FileRef="MediaObjects/605_2016_978_IEq3_HTML.gif" Format="GIF" Rendition="HTML" Type="Linedraw"/></InlineMediaObject></InlineEquation>of groups is said to be countably recognizable if a group belongs to?<InlineEquation ID="IEq4"><InlineMediaObject><ImageObject Color="BlackWhite" FileRef="MediaObjects/605_2016_978_IEq4_HTML.gif" Format="GIF" Rendition="HTML" Type="Linedraw"/></InlineMediaObject></InlineEquation>whenever all its countable subgroups lie in<InlineEquation ID="IEq5"><InlineMediaObject><ImageObject Color="BlackWhite" FileRef="MediaObjects/605_2016_978_IEq5_HTML.gif" Format="GIF" Rendition="HTML" Type="Linedraw"/></InlineMediaObject></InlineEquation>. It is proved here that the class of minimax groups is countably recognizable.</Para></Abstract>]]> 收起