28,596 reputation
255126
bio website math.tsukuba.ac.jp/~carnahan
location 筑波市, Japan
age
visits member for 4 years, 11 months
seen 3 mins ago
I think this is a neat project.

14h
comment Explicit solution for a first order non-linear ODE
Do you happen to have a reason to expect such a solution to exist?
14h
comment Learning roadmap in Algebra
The theory of finite flat group schemes seems like a good way to put together those three pieces of sound knowledge.
1d
reviewed Leave Open Compact elements of $\mathrm{GL}_n(F)$, where $F$ is a nonarchimedean local field
1d
reviewed Close Estimate of a Sobolev norm of p-form
1d
reviewed Close Online algorithm for nested optimization problem(with locally optimization)
1d
reviewed Approve suggested edit on Did differential geometry undergo a notation change?
1d
awarded  Enthusiast
1d
comment Connes on Integers / Primes and Quantum Field Theory / Elementary Particles
Both can be viewed as passage from the whole to some notion of basic building blocks. There doesn't seem to be anything deep here.
2d
reviewed Leave Open Strong divisibility of Lucas sequences
2d
reviewed Close Containment of two varieties with a lot of intersection
2d
reviewed Leave Open Expression and growth bound for $r_{p^m,k}(n)$
2d
comment Algorithm to find the “optimal” path in a given graph
Normally, you should wait at least a few days before crossposting.
2d
reviewed Leave Open Another kind of the positivity of matrices
2d
reviewed Close Period doubling bifurcations
Sep
18
reviewed Leave Open Golod Shafarevich Inequality and Inequalities among higher Cohomology groups
Sep
18
reviewed Leave Open Perf($\mathscr{A}$) and perfect chain complexes
Sep
18
reviewed Close Standard Arguments of Calculus of Variations
Sep
18
reviewed Close An isogeny from a split algebraic torus
Sep
18
reviewed Close Decay of weak solutions to degenerate parabolic PDEs on manifolds without boundary
Sep
16
comment Why is the Gamma function shifted from the factorial by 1?
On the other hand, the surface area of the unit hypersphere in $\mathbb{R}^n$ can be written as $\frac{2\pi^{n/2}}{\Gamma(\frac{n}{2})}$ instead of $\frac{2\pi^{n/2}}{\Pi(\frac{n}{2}-1)}$.