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math.RA2005
Tangent-like Spaces to Local Monoids
Keqin Liu
The main new notions are the notions of tangent-like spaces and local monoids. The main result is the pasage from a local monoid to its tangent-like space which is a local Leibniz…
math.RA2005
How to Expand the Zariski Topology
Keqin Liu
We introduce the notion of a Hu-Liu prime ideal in the context of left commutative rngs, and establish the contravariant functor from the category of left commutative rngs into the…