1,689 reputation
11031
bio website none
location United Kingdom
age 23
visits member for 3 years, 1 month
seen Dec 12 at 16:11

Currently studying for an Msc in Mathematics


Apr
29
comment Showing that $\mathbb{Z}/2\mathbb{Z}[\mathbb{Z}/2\mathbb{Z}]$ is semi-simple
Thanks! Sorry for the pretty trivial question
Apr
29
accepted Showing that $\mathbb{Z}/2\mathbb{Z}[\mathbb{Z}/2\mathbb{Z}]$ is semi-simple
Apr
29
comment Showing that $\mathbb{Z}/2\mathbb{Z}[\mathbb{Z}/2\mathbb{Z}]$ is semi-simple
So $\{0,e\}$ is not an ideal as $\{0,e\}g\not\subset \{0,e\}$ but $\{0,g\}$ is an ideal right as is $\{0,e+g\}$ so does this choice work?
Apr
29
comment Showing that $\mathbb{Z}/2\mathbb{Z}[\mathbb{Z}/2\mathbb{Z}]$ is semi-simple
oh yeah, oops. Yeah if I just leave the last summand off I think I am ok right?
Apr
29
comment $\mathbb{C}\otimes_\mathbb{C} \mathbb{C} \cong \mathbb{R}\otimes _\mathbb{R} \mathbb{C}$
@FabioLucchini Yeah but I am just considering these as abelian groups so this is irrelevant right?
Apr
29
asked Showing that $\mathbb{Z}/2\mathbb{Z}[\mathbb{Z}/2\mathbb{Z}]$ is semi-simple
Apr
29
asked $\mathbb{C}\otimes_\mathbb{C} \mathbb{C} \cong \mathbb{R}\otimes _\mathbb{R} \mathbb{C}$
Apr
27
comment Example of a functor on products
@Niels.Remb05 why? they are not products of the same objects?
Apr
27
asked Example of a functor on products
Apr
24
awarded  Popular Question
Apr
23
awarded  Popular Question
Apr
21
awarded  Benefactor
Apr
21
comment Equivalence Of Definitions Of Prime Ideal In Ring Without $1$
Sorry, I thought the bounty was awarded automatically when I accepted an answer, I have awarded it now. Thanks for the help! :)
Apr
19
awarded  Quorum
Apr
19
revised Proving that $V(R^*)=V(R)-1$
edited title
Apr
19
revised Proving that $V(R^*)=V(R)-1$
added 3 characters in body
Apr
19
asked Proving that $V(R^*)=V(R)-1$
Apr
18
accepted Equivalence Of Definitions Of Prime Ideal In Ring Without $1$
Apr
17
comment Equivalence Of Definitions Of Prime Ideal In Ring Without $1$
@rschwieb Right ok, I'll have a play around with that to check that I get everything. Thanks everyone for the help!
Apr
17
comment Equivalence Of Definitions Of Prime Ideal In Ring Without $1$
@rschwieb Cool, could you possibly explain the set where we assume that $(a)^2(b)^3\subset RaRbR$? I can't see why this follows? Thanks