6,356 reputation
1625
bio website poisson.phc.unipi.it/~mossa
location Earth
age 26
visits member for 3 years, 5 months
seen 6 mins ago

I'm math student, in particular I'm interested in algebra, geometry, topology and category theory (especially higher dimensional category theory) and its application in mathematics.


Oct
24
revised Understanding what an action is?
added 4 characters in body
Oct
24
answered Understanding what an action is?
Oct
24
answered Why am I learning model theory?
Oct
23
revised Prove that a nonzero homomorphic image of a local ring is a local ring
added 11 characters in body
Oct
22
awarded  Custodian
Oct
22
reviewed Approve suggested edit on Prove that a nonzero homomorphic image of a local ring is a local ring
Oct
22
comment Prove that a nonzero homomorphic image of a local ring is a local ring
@julypraise yes, my bad :)
Oct
22
answered Field extensions and irreducible polynomial question
Oct
22
answered Prove that a nonzero homomorphic image of a local ring is a local ring
Oct
20
answered adjoint functor
Oct
15
comment Steve Awodey “Category Theory” - possible error
@porton did that, thanks for pointing out the error.
Oct
15
revised Steve Awodey “Category Theory” - possible error
made correction
Oct
15
comment Steve Awodey “Category Theory” - possible error
@porton Since $i^{-1}(U')=\{x \in A \mid i(x)=x \in U'\}=U' \cap A=U$, so $f^{-1}(U')=(i \circ \bar f)^{-1}(U')=\bar f^{-1}(i^{-1}(U'))=\bar f^{-1}(U)$.
Oct
15
comment Steve Awodey “Category Theory” - possible error
@porton My apologize, I've added some details I hope now I've made myself more clear. If that's not the case feel free to ask.:)
Oct
15
revised Steve Awodey “Category Theory” - possible error
added some details
Oct
14
comment Steve Awodey “Category Theory” - possible error
@porton no it's not in Awodey's book, it's mine :)
Oct
14
answered Steve Awodey “Category Theory” - possible error
Oct
14
comment About Equalizer in different categories
@QEUO Ok, now I've made a change that should address the last part of the question :)
Oct
14
revised About Equalizer in different categories
Adressed the second part of question
Oct
14
answered About Equalizer in different categories