Dmitry Kerner
|
Registered User
|
|
|
May 11 |
asked | Invariants of a module, ‘readily’ computable from the presentation matrix |
|
Mar 13 |
asked | matrices over local rings, up to equivalence |
|
Feb 28 |
revised |
Artin approximation theorems over non-regular rings/non-Noetherian rings edited tags |
|
Feb 28 |
comment |
Artin approximation theorems over non-regular rings/non-Noetherian rings Probably I miss smth, but in the paper "A rigid analytic version of M. Artin's theorem on analytic equations" he seems to consider polynomial equations. At least this is the statement on page 1. |
|
Feb 27 |
asked | Artin approximation theorems over non-regular rings/non-Noetherian rings |
|
Feb 21 |
answered | Components of an exceptional divisor |
|
Feb 18 |
comment |
working with local rings: “abstract” vs “geometric” proofs @Mahdi: the initial Artin's theorem addresses the ring of complex analytic functions! i.e. precisely the good case: you can compute each such function at points close to the origin. see my upd. |
|
Feb 17 |
revised |
working with local rings: “abstract” vs “geometric” proofs added 650 characters in body |
|
Feb 17 |
comment |
working with local rings: “abstract” vs “geometric” proofs @Mahdi: precisely. That's what I'm asking. For which statements about the local rings it is enough to check the statement just for e.g. localization/henselization of an affine ring? |
|
Feb 17 |
comment |
working with local rings: “abstract” vs “geometric” proofs @Eric Wofsey: I speak about a statement formulated over an arbitrary local ring. Maybe complete, maybe not. Can't see how Cohen's structure theorem can be helpful here. |
|
Feb 17 |
asked | working with local rings: “abstract” vs “geometric” proofs |
|
Feb 10 |
comment |
basics of classification of trilinear forms (when is it non-discrete) @Robert: being ignorant I did not think that the field matters much. :( Could you give more details? A reference? |
|
Feb 10 |
comment |
basics of classification of trilinear forms (when is it non-discrete) Thanks! Still more questions: 1. Where is this written? (Instead of writing down the reasoning in my paper I'd prefer just to cite some text) 2. Suppose, for a given group acting on a space, there is just one open dense orbit. Does it imply that all the orbits are discrete (no moduli)? I cannot think of any counterexample, being ignorant. Or, maybe there are some additional (not too restrictive) conditions ? |
|
Feb 10 |
revised |
basics of classification of trilinear forms (when is it non-discrete) added 100 characters in body |
|
Feb 10 |
asked | basics of classification of trilinear forms (when is it non-discrete) |
|
Jan 4 |
revised |
When fitting ideals determine the module? added 219 characters in body |
|
Jan 3 |
revised |
When two determinantal ideals together generate a power of the maximal ideal? edited title |
|
Jan 3 |
asked | When two determinantal ideals together generate a power of the maximal ideal? |
|
Dec 30 |
awarded | ● Yearling |
|
Dec 5 |
awarded | ● Self-Learner |
