user avatar
user avatar
user avatar
Bryan261
  • Member for 8 years, 7 months
  • Last seen more than 6 years ago
7 votes
2 answers
501 views

How is the notion of adjunction of two functors usefull?

6 votes
0 answers
193 views

How to solve this equation in $ \mathbb{C} $?

6 votes
1 answer
381 views

Is $ L^{\infty} $ a direct limit or inverse limit of the directed system $ (L^p , i_{p}^q )_{p,q \in [1 , + \infty [ } $?

4 votes
0 answers
280 views

Integration over a variety

4 votes
0 answers
425 views

Is a variety a CW-complex?

4 votes
1 answer
110 views

Adjoints functors in scheme theory

4 votes
1 answer
145 views

What is : $ \ \mathrm{Gal} ( \overline{ \mathbb{Q} } / \mathbb{Q} ) $?

4 votes
3 answers
3k views

How to define the complex square root $ \sqrt{z} $?

3 votes
2 answers
368 views

Why is $ \mathrm{Frac} ( A / \mathfrak{p} ) = A_{\mathfrak{p}} / \mathfrak{p} A_{\mathfrak{p}} $? [duplicate]

2 votes
1 answer
3k views

How to find $ P $ such that $ A^\top = PAP^{-1} $?

2 votes
1 answer
303 views

The inverse image of a sheaf

2 votes
1 answer
92 views

$i^{-1} F$ a sheaf if and only if $\varinjlim_{ U \subseteq X \text{ open}, ~ x,y \in U } F(U) \to F_x \times F_y$ is an isomorphism.

2 votes
0 answers
40 views

Group of Hodge classes and short exact sequence

2 votes
0 answers
107 views

Short exact sequence of group of Hodge classes

2 votes
0 answers
826 views

Diagonalization of Vandermonde matrix

2 votes
1 answer
97 views

Isomorphism between algebras over C

2 votes
2 answers
137 views

Morphism of algebras

2 votes
0 answers
489 views

Dimension of the set of forms of degree $d$ in the homogeneous coordinate ring of $V$ (Fulton, Exercise 4.10)

1 vote
0 answers
63 views

Integration on $ \mathbb{P}^n ( \mathbb{R} ) $.

1 vote
1 answer
904 views

Schwarz theorem in complex analysis.

1 vote
1 answer
315 views

How we obtain explicitly the long exact sequence of the exponential exact sequence?

1 vote
1 answer
84 views

Automorphism of algebras

1 vote
0 answers
39 views

Morphisms of algebras

1 vote
1 answer
66 views

How to compute the limit of a distribution

1 vote
0 answers
66 views

Isomorphism between algebras

1 vote
1 answer
68 views

Why is : $ \ \ V \times_U W = p^{-1} (V) \bigcap q^{-1} (W) $?

1 vote
1 answer
356 views

Morphism of rings and localization

1 vote
1 answer
473 views

Localization and direct limit

0 votes
1 answer
109 views

Graded ring, and its homogeneous ideals : $ I = \displaystyle \bigoplus_ {n \in \mathbb {Z}} (I \bigcap B_n) $

0 votes
1 answer
124 views

How to prove that : $ \mathrm{Hom} ( A(G), H) \simeq \mathrm{Hom} (G , I(H)) $?