Urysohn,s Metrization Theorem
المؤلف:
Willard, S.
المصدر:
General Topology. Reading, MA: Addison-Wesley
الجزء والصفحة:
p. 166
3-6-2021
1992
Urysohn's Metrization Theorem
For every topological T1-space 
, the following conditions are equivalent.
1. 
is regular and second countable,
2. 
is separable and metrizable.
3. 
is homeomorphic to a subspace of the Hilbert cube.
REFERENCES:
Willard, S. General Topology. Reading, MA: Addison-Wesley, p. 166, 1970.
الاكثر قراءة في التبلوجيا
اخر الاخبار
اخبار العتبة العباسية المقدسة
