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Base Change of Closed Immersion stays Closed Immersion

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#algebraic-geometry #schemes
160
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Connected components of an open subset

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#algebraic-geometry #homology-cohomology #connectedness #dimension-theory-algebra
677
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Local complete intersection

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#algebraic-geometry #commutative-algebra
81
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Isometry in $\mathbb R^3$

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#linear-algebra #algebraic-geometry
157
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Proof that a Scheme is connected

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#algebraic-geometry #commutative-algebra
354
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When is the base change functor fully faithful

Published on
#algebraic-geometry #category-theory
113
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Find a variety $Y$ such that $k(Y)$ is isomorphic to a given subfield of $k(X)$ for a variety $X$.

Published on
#algebraic-geometry #galois-theory
243
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characterization of affine open sets in an affine scheme

Published on
#algebraic-geometry #affine-schemes
300
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Non-constant holomorphic mapping $f:M_{1} \longrightarrow M_{2}$ between compact Riemann surface

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#differential-geometry #algebraic-geometry #complex-geometry #algebraic-curves #riemann-surfaces
130
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Reducedness and colimit

Published on
#abstract-algebra #algebraic-geometry #commutative-algebra
234
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Trivial subrepresentation and base change of fields

Published on
#group-theory #number-theory #algebraic-geometry #representation-theory
89
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Singularities of $f:X\longrightarrow Y$ morphism of varieties

Published on
#algebraic-geometry
110
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Riemann surface of positive genus

Published on
#algebraic-geometry
428
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Geometric interpretation of elliptic curve point addition in projective space

Published on
#geometry #algebraic-geometry #cryptography #projective-space #geometric-interpretation
39
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Reducedness and the choice of affine open subsets

Published on
#algebraic-geometry #schemes

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