BenjaLim

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445 Answers

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7
Polynomial ring over $\mathbb{Z}_2$
7
What is the meaning of “algebraically indistinguishable”
6
$GL(n, \mathbb{C})$ is algebraically closed?
6
Exercise 2.4 Fulton's Algebraic Curves
6
Is this an Extension of Complex Numbers?
6
There are at least three mutually non-isomorphic rings with $4$ elements?
6
for a $3 \times 3$ matrix A ,value of $ A^{50} $ is
6
Extending a homomorphism of a ring to an algebraically closed field
6
Brouwer's fixed point theorem for free?
6
Is a countable set $A$ dense in an uncountable set $B$ by analogy of $\mathbb{Q}$ being dense in $\mathbb{R}$?
6
how is this series expansion $(\sum\limits_{i=1}^n{x_{i}})^2=(\sum\limits_{i=1}^n{x_{i}^2}+\sum\limits_{i<j}{2x_{i}x_{j}})$ derived?
6
If a subset of $\mathbb{R}$ is closed and bounded with respect to a metric equivalent to the Euclidean metric, must it be compact?
6
How to prove that f is discontinuous at one point at least
6
Motivation for Topology study in Real Analysis
6
Galois Group over Finite Field
6
A subring of the field of fractions of a PID is a PID as well.
6
Proof that $S_3$ and $S_4$ are solvable groups
6
If $(1.001)^{1259} = 3.52$ and $(1.001)^{2062} = 7.85$, then $(1.001)^{3321}= ?$
6
Prove that $n=2^k -1$ is not a prime number, with $k=ab$. (Edit: $a\not=1$ and $b\not=1$)
6
prove for all $n\geq 0$ that $3 | n^3+6n^2+11n+6$
5
Cohomology $H^ {i}(\mathbb{R}P^n, \mathbb{Z}_2)$
5
Elementary proof that $\mathfrak{p}$ unramified in $L,L'$ implies unramified in $LL'$?
5
Intuitive motivation to try to factor an ideal
5
Algebraic Number Theory - Lemma for Fermat's Equation with $n=3$
5
Fermat's Last Theorem and Kummer's Objection
5
Which field is this quotient of a local ring by its maximal ideal?
5
Representation of Lie algebra of $\textrm{SU}(2)$
5
Limit of a definite integral $\frac{\sin(x)}{x}$
5
A question about a weak form of Hilbert's Nullstellensatz
5
In Field Theory, some basic problems
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