Bysshed's user avatar
Bysshed's user avatar
Bysshed's user avatar
Bysshed
  • Member for 9 years, 5 months
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  • United Kingdom
8 votes
Accepted

Determining whether a group is cyclic from its Cayley Table

8 votes

What books should I get to self study beyond Calculus for someone about to start undergrad mathematics?

3 votes

Probability of a point from one normal distribution being higher than a point from another independent normal distribution

3 votes

Given: $\{a,b\}\subset \mathbb Q$, $a\ne b$, not perfect squares, $s=\sqrt{a}+\sqrt{b}$, $q=\sqrt{a}-\sqrt{b}$, are $s$ and $q$ both irrationals?

2 votes
Accepted

Group with $[a,b][c,d] \ne [f,g]$

2 votes
Accepted

Using Group Actions to Show a Subset is a Subgroup

2 votes

Does $\mathrm{span}\{u, u-v\}$ contain the vector $v$?

2 votes

Are Sylow p-subgroups of prime order have trivial intersection?

1 vote

Writing the most general form of a linear mapping

1 vote

Subspace as a representative system of the quotient space

1 vote
Accepted

Similarity of Linear Transformations in $\mathbb{R}^4$

1 vote
Accepted

What is the identity map for the change of basis?

1 vote

Diagonal Matrix, just eigenvalues?

1 vote
Accepted

Intersection of subspaces by construction

1 vote
Accepted

Consider some neighborhood $N_{1 \over 12}({\bf 0})$ in $\mathbb R^3$. For any $x\in N_{1 \over 12}({\bf 0})$, are $|x_1|,|x_2|,|x_3|< {1\over 12}$?

1 vote

Conjugates of a cyclic subgroup

1 vote
Accepted

Semidirect products of $V_4 \ltimes_\alpha C_3$ and isomorphies

1 vote

order 20 group G and order 27 group H

1 vote

Are all primes Euclid primes?

1 vote

Show that $\sum_{k=1}^\infty (a_k - a_{k+1}) = a_1 - l$ if $\lim_{k \to \infty} a_k = l$

1 vote

$\sum_{k=0}^n\binom nk x^k=\sum_{k=0}^n\binom nk x^{n-k}.$

1 vote

Probability that no two consecutive heads occur?

1 vote
Accepted

How to calcuate the slope or gradeint usign function only with one point.

1 vote
Accepted

Proving $\dim(R(A)\cap R(B)) \ge \dim(R(AB))$

1 vote

How do I prove that something is a subspace and an isomorphism?

0 votes

In a chain of Linear Transformations, Range and Null-space Proof.

0 votes

Find the direct summands of $\mathbb Z/ 36\mathbb Z$

0 votes

How do I find the sum of the cubes of the roots in a cubic polynomial?

0 votes

What would be an example such that $aH=bH$ but $Ha \neq Hb$?

0 votes
Accepted

If $\phi \in W^*$, show that we can find a $\widetilde{\phi} \in V^*$ such that $\widetilde{\phi}\Bigr|_{W} = \phi$