: Astronomie: topological ring

mathematical technique > geometry > topology > topological space > topological ring

topological ring

In mathematics, a topological ring is a ring R that is also a topological space such that both the addition and the multiplication are continuous as maps : R x R → R where R × R carries the product topology. That means R is an additive topological group and a multiplicative topological semigroup. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Topological_ring)

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