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Results tagged with schemes
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user 91373
The first purpose of schemes theory is the geometrical study of solutions of algebraic systems of equations, not only over the real/complex numbers, but also over integer numbers (and more generally over any commutative ring with 1). It was finalized by Alexandre Grothendieck, during the 1950s and the 1960s.
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Pushouts of schemes along closed immersions
of schemes? … But, that is not the same as saying the pushout does not exist in the category of schemes when that condition is violated. …
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