Jack Schmidt

Lexington, KY

ms.uky.edu/~jack

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Ignoring elements of small order in the simple group of order $60$

group-theory simple-groups asked Aug 9 '10 at 14:54

math.stackexchange.com

32 votes

Is there a group with exactly 92 elements of order 3?

group-theory asked Aug 13 '10 at 15:14

math.stackexchange.com

23 votes

$\operatorname{tr}(AABABB) = \operatorname{tr}(AABBAB)$ for $2×2$ matrices

linear-algebra asked Mar 25 '11 at 21:42

math.stackexchange.com

18 votes

Expressing a root of a polynomial as a rational function of another root

abstract-algebra polynomials galois-theory asked Jan 6 '11 at 2:26

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18 votes

Why does a faster clock require more power?

frequency oscillator low-power asked Oct 25 '10 at 17:58

electronics.stackexchange.com

16 votes

Making a battery last a long time in a microcontroller circuit

microcontroller batteries design attiny low-power asked Oct 7 '10 at 19:26

electronics.stackexchange.com

15 votes

Connectedness of centralizer exercise

group-theory algebraic-groups asked Jul 16 '12 at 17:12

math.stackexchange.com

14 votes

Why do we need hardware programmers?

arduino microcontroller avrdude isp asked Sep 30 '10 at 4:54

electronics.stackexchange.com

13 votes

Involution centralizer of perfect group with quaternion Sylow 2-subgroups

group-theory asked Dec 4 '10 at 1:53

math.stackexchange.com

13 votes

German sofa primes: Can both $q$ and $\frac{q^3+1}{2}$ be prime?

number-theory elementary-number-theory prime-numbers asked Jan 17 '11 at 17:23

math.stackexchange.com

Top Answers

What can we say of a group all of whose proper subgroups are abelian?

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Why are there only a finite number of sporadic simple groups?

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Existence of a normal subgroup with $|\operatorname{Aut}{(H)}|>|\operatorname{Aut}{(G)}|$

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Enumerating all subgroups of the symmetric group

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Showing determinants using trace in a 2x2 matrix

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What are the solvable subgroups of $S_n$?

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Finite groups with exactly one maximal subgroup

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Non-associative version of a group satisfying these identities: $(xy)y^{-1}=y^{-1}(yx)=x$

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Tolerance of voltage dividers with different values for R1 and R2

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Finite groups: $H \leq A \times B$. Is $H \cong C \times D$ for some $C \leq A$, $D \leq B$?

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Automorphisms of non-abelian groups of order 27

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How to generalise $(\wedge^2 \chi)(g) = \frac{1}{2}(\chi(g)^2-\chi(g^2))$?

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Is the product of ideals commutative?

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Multiplication of elements in a group

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Axiomatic approach to polynomials?

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Period of 3 implies chaos

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Character Table From Presentation

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Quaternion group as an extension

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Number of subgroups of prime order

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if the kernel of an endomorphism is a direct summand, doesn't the image have to be too?

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How to find the length of a PGF array?

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System for secretly choosing between two options?

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Easy example of $A<B<C$ , $A\cong C$, $A\not\cong B$

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Structure Theorem for abelian torsion groups that are not finitely generated

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Embedding $G$ into $G/N \times A$ for some small group $A$

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A simple question about Galois groups

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Why are the centers of $R$ and $\text{End}_{\text{Ab}}(R)$ isomorphic?

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Are two subgroups that contain a common element conjugate iff they are conjugate under the normalizer?

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Why is the generalized quaternion group $Q_n$ not a semi-direct product?

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Finite groups $G$ such that $Soc(G)$ is abelian and contains normal subgroups only

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