The normal subsemigroups of the monoid of injective maps
نویسنده
چکیده
We consider the monoid Inj(M) of injective self-maps of a set M and want to determine its normal subsemigroups by numerical invariants. This was established by Mesyan in 2012 if M is countable. Here we obtain an explicit description of all normal subsemigroups of Inj(M) for any uncountable set M .
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تاریخ انتشار 2013