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math.AG2011
On toric schemes
Fred Rohrer
Studying toric varieties from a scheme-theoretical point of view leads to toric schemes, i.e. "toric varieties over arbitrary base rings". It is shown how the base ring affects the…
math.GT2011★ 9 cited
Completions of fans
Fred Rohrer
In a finite-dimensional real vector space furnished with a rational structure with respect to a subfield of the field of real numbers, every (simplicial) rational semifan is contai…