Why are $E$ and $B$ fields not redundant?
117453
The necessity of the B field
30022
Why use the double cover instead of the universal cover of $SO(2)$?
48962
Show the two fields are not isomorphic
103654
A finite field extension that is not simple
74663
Is $\mathbb{R}$ an algebraic extension of some proper subfield?
101171
Why do all fields in a QFT transform like *irreducible* representations of some group?
745
$F(x)$ versus $F[x]$ where $F$ is a field
138911
Is $\mathbb R^2$ a field?
107605
Determining the characteristic of a field
67157
Example of an non-normal inseparable field extension
81550
Linking two theorems: on algebraic closure and on minimal splitting field
118195
How does one prove that $e$ exists?
17809
How come such different methods result in the same number, $e$?
73367
On $E[E[Y|X]|X]= E[Y|X]$
101098
Field extensions with(out) a common extension
38817
Why is the ring of matrices over a field simple?
114152
Intermediate fields between $\mathbb{Z}_2 (\sqrt{x},\sqrt{y})$ and $\mathbb{Z}_2 (x,y)$