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15
91
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If $R$ is a PID then $\mathrm{Spec}(R)\!=\!\mathrm{Max}(R)\!\cup\!\{0\}$?

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#abstract-algebra #algebraic-geometry #commutative-algebra #homological-algebra
389
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On the definition of degree of closed subschemes

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#algebraic-geometry #projective-space #hilbert-polynomial
44
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If $K$ is a field then $\frac{K[x_1,x_2,...,x_n]}{(x_1-\alpha_1,...,x_i-\alpha_i)}\cong K[x_{i+1},...,x_n]$

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#abstract-algebra #algebraic-geometry #commutative-algebra #homological-algebra
199
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Functor of points of the completion of a ring

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#abstract-algebra #algebraic-geometry #ring-theory #commutative-algebra #formal-completions
299
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Semisimple linear algebraic group

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#algebraic-geometry #representation-theory #lie-groups #algebraic-groups
111
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Why does a pointed surface minus a countable set of points contain a curve?

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#algebraic-geometry #complex-geometry #curves #algebraic-curves
91
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Finiteness of intersection numbers

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#algebraic-geometry #commutative-algebra #intersection-theory
298
Views

Kahler differentials of a Hopf Algebra

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#algebraic-geometry #commutative-algebra #hopf-algebras #group-schemes
310
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Kernel of an algebra map and module of Kahler Differentials

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#algebraic-geometry #commutative-algebra #hopf-algebras #group-schemes
61
Views

Surjection from a scheme of finite type

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#algebraic-geometry #schemes
471
Views

Notions of Fundamental Groups for semisimple algebraic groups

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#algebraic-geometry #algebraic-groups #fundamental-groups #root-systems #classical-groups
461
Views

Irreducible and connected components of $\mathbb{C}[x,y]/(xy)$

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#abstract-algebra #algebraic-geometry #commutative-algebra
55
Views

Workaround for Windows Magma Memory Limit

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#algebraic-geometry #computational-mathematics #computer-algebra-systems #magma-cas
475
Views

Concerning Hartshorne's proof of the Vanishing Theorem of Grothendieck (Hartshorne III 2.7)

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#algebraic-geometry #sheaf-theory #exact-sequence #sheaf-cohomology
72
Views

Low-degree polynomial $T\in\mathbb F[x,y]$ with $T(P(z),Q(z))=0$

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#algebraic-geometry #polynomials #finite-fields

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