12,737 reputation
22253
bio website personal.psu.edu/kes32
location Pennsylvania
age 35
visits member for 4 years, 2 months
seen 7 hours ago

I'm an assistant professor at Penn State. I work on algebraic geometry and commutative algebra.


18h
reviewed Leave Open Can we construct cohomolgy theory on noetherian separated schemes without Axiom of Choice?
Apr
12
reviewed Leave Open How can I solve a cubic equation in a finite field with characteristic 2?
Apr
12
reviewed Close Does Cauchy continuity imply uniform continuity? [No.]
Apr
11
revised Surjectivity of $f\colon\Gamma_Z(M)\rightarrow\bigoplus_{p\in Z\backslash Z'}\Gamma_{pR_p}(M_p)$
latex fixes
Apr
10
reviewed Leave Open Points contained in a disk
Apr
10
reviewed Leave Open Does there exist any subspace of R^n, homeomorhic to a manifold but not a C^0 submanifold of R^n?
Apr
10
comment Surjectivity of $f\colon\Gamma_Z(M)\rightarrow\bigoplus_{p\in Z\backslash Z'}\Gamma_{pR_p}(M_p)$
Ok, one more question then. Is $Z$ closed? Is $Z'$ just some subset or is it also closed?
Apr
10
revised Surjectivity of $f\colon\Gamma_Z(M)\rightarrow\bigoplus_{p\in Z\backslash Z'}\Gamma_{pR_p}(M_p)$
added a clarifying statement
Apr
9
comment Surjectivity of $f\colon\Gamma_Z(M)\rightarrow\bigoplus_{p\in Z\backslash Z'}\Gamma_{pR_p}(M_p)$
I cleaned up a little LaTeX but I'm not quite sure what's going on. Does $Z \subseteq \text{Spec }R$? When you say that elements are minimal in $Z$, what do you mean exactly?
Apr
9
revised Surjectivity of $f\colon\Gamma_Z(M)\rightarrow\bigoplus_{p\in Z\backslash Z'}\Gamma_{pR_p}(M_p)$
fixed latex
Apr
9
revised Weak Fano and Log fano varieties
typos
Apr
9
revised Weak Fano and Log fano varieties
added 43 characters in body
Apr
9
answered Weak Fano and Log fano varieties
Apr
8
reviewed Close Derivation of an ML-estimator
Apr
8
reviewed Leave Open automorphism of finitly generated group
Apr
8
reviewed Close Construct a minimal free resolution
Apr
6
reviewed Reopen First Parameterized Subset of Primes that was Related to a Mathematical Result
Apr
5
reviewed Close Branch points lie in $\mathbb P^1\left(\overline{\mathbb Q}\right)$
Apr
3
comment Nonsingular is rational singular
There are proofs of Grauert-Riemenschneider vanishing in characteristic zero that certainly don't assume that $R f_* O_X = O_Y$. I think for instance you can see a proof on Page 186 of Lazarsfeld's book "Positivity in Algebraic Geometry II"
Apr
2
reviewed Close About Blind Mathematicians