Natasha
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2 answers
4 votes
468 views
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Can you help with this proof that the $n$-th Bell number is bounded by $n!$ for all natural numbers $n$?
0 answers
2 votes
64 views
Topological groups: how to choose a topology for a group, and do we need to?
1 answers
2 votes
29 views
Proving these sets are well-ordered with the order inherited from $\mathbb{R}$.
1 answers
1 votes
61 views
Topological groups: if $A$ is an open subset of $G$, then $A^{-1}$ is open.
0 answers
1 votes
26 views
Is there a way to order the maximal ideals of the ring of integers? Is there an order structure to maximal ideals?
0 answers
1 votes
33 views
How can a field L be a subgroup of the Galois group of the extension L:K?
1 answers
0 votes
26 views
What is the natural topological structure of the affine group on the p-adic numbers?
0 answers
0 votes
21 views
How to decompose unitary representations of compact groups in terms of irreducible representations?
0 answers
0 votes
33 views
Is there uniqueness of a group representation on a given representation space?
0 answers
0 votes
31 views
Are $p$-adic groups also Lie groups? What is a $p$-adic group specifically?
1 answers
0 votes
44 views
Find the elements of this set? $X$ is a subset of reals such that for each distinct pair $x, y \in X$, their difference is irrational.
1 answers
0 votes
56 views
Construction of the Reals in ZFC system: Existence of rational sequences
0 answers
0 votes
31 views
Subfields and degree of $[K(t):K]$ for a given field $K$?
2 answers
0 votes
159 views
Interesting ways to show that there are infinitely many equivalence relations on an infinite set (including Bell numbers).
1 answers
0 votes
351 views
1 bookmarks
Examples of order isomorphisms / similarities between well ordered sets