Mathematics
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Keith Kearnes
  • Member for 6 years, 3 months
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I am a member of the math department at the University of Colorado at Boulder.

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All Questions Answers
Score Newest
answer
14
Does there exist a pair of infinite fields, the additive group of one isomorphic to the multiplicative group of the other?
Sep 8, 2016
answer
13
Characteristic subgroups and automorphisms
Oct 13, 2015
answer
13
When do $P$ $\subseteq$ $N$ $\subseteq$ $M$ and $P \cong M$ imply $N \cong M$?
Jun 30, 2017
answer
12
$f(x) $ be the minimal polynomial of $a$ (algebraic element) over $\mathbb Q$ , let $b=f'(a) \in \mathbb Q(a)$ , then is $\mathbb Q(a)=\mathbb Q(b)$?
Aug 31, 2016
answer
9
Free lattice in three generators
Oct 8, 2018
answer
9
Can a single nontrivial identity imply associativity and commutativity?
Jun 17, 2020
answer
8
What is the cardinality of the set of equivalence classes of countable order types under bi-embeddability?
Oct 9, 2018
answer
8
Generalization of normal subgroups and ideals
May 3, 2017
answer
8
If a ring R has one sided divisor of zero then show that the R has a both sided divisor of zero.
Oct 27, 2016
answer
8
Clarification of the definition of a clone
Apr 22
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32
A group allowing exactly 7 group topologies
28
Non isomorphic finite rings with isomorphic additive and multiplicative structure
20
Is every complete Boolean algebra isomorphic to the quotient of a powerset algebra?
20
Does the hypergraph of subgroups determine a group?
19
What are applications of commutativity theorems for rings?

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