bio | website | metis.ms.unimelb.edu.au/… |
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location | Melbourne, Australia | |
age | 31 | |
visits | member for | 1 year, 5 months |
seen | 7 hours ago | |
stats | profile views | 385 |
I am a low dimensional topologist.
Mar 11 |
answered | Genus of Tutte-Coxeter Graph |
Mar 10 |
revised |
Genus of Tutte-Coxeter Graph
Added the tag reference request. |
Mar 10 |
reviewed | Reviewed Genus of Tutte-Coxeter Graph |
Mar 10 |
suggested | suggested edit on Genus of Tutte-Coxeter Graph |
Mar 10 |
reviewed | Reviewed How was Christoffel a 'whimsical eccentric'? |
Mar 7 |
comment |
Does there exist a function such that $\int_{\mathbb{R}_+^{\star} } t^nf(t)dt=0$?
I just cleaned the comment up a little, so hopefully its more readable. $k$ is the floor of (t+1)/2. |
Mar 7 |
comment |
Does there exist a function such that $\int_{\mathbb{R}_+^{\star} } t^nf(t)dt=0$?
Perhaps I missing an implied assumption, but I think this works. Consider a function $g_0(t)=\{0 \mbox{ on } [0,1], 1/k \mbox{ on } [2k-1,2k], -1/k \mbox{ on } (2k,2k+1)\}$. Let $g_1(t)$ be a continuous function that approximates $g_0(t)$ such that $g_1(t)$ also has the property that $\int_{x=2k} ^{2k+2} g_1(t)dt=0$. Now, let $f(t)=g_1(t)/t^n$ if $t\ne 0$ and $f(0)=0$. |
Mar 3 |
revised |
Wanted: a nontrivial weakly inadmissible Heegaard diagram
Added the tags: 3-manifolds, gt.geometric-topology |
Mar 3 |
suggested | suggested edit on Wanted: a nontrivial weakly inadmissible Heegaard diagram |
Feb 27 |
comment |
from Dehn twists to surgery diagram
Mark, thanks for pointing out that error and the helpful comment. I made an edit to correct my previous mistake. |
Feb 27 |
revised |
from Dehn twists to surgery diagram
I changed the orientation of the Dehn twist about beta. |
Feb 27 |
answered | from Dehn twists to surgery diagram |
Feb 25 |
comment |
Software for noncommutative Groebner bases over rational function fields
Have you tried searching the magma manual for Groebner bases: magma.maths.usyd.edu.au/magma/handbook/groebner_bases |
Feb 24 |
reviewed | Reviewed Exponential and Logarithm Mapping on Stiefel Manifold |
Feb 21 |
revised |
Reference requested: Random walk on groups
Try to improve the focus of the question. Minor corrections to the grammar. |
Feb 21 |
suggested | suggested edit on Reference requested: Random walk on groups |
Feb 19 |
reviewed | No Action Needed Pacing for learning new material |
Feb 19 |
comment |
Existence of inclusions of finite groups with a particular lattice property
I also had a question about your first remark, that I hoped you might be able to help me with. If $G$ is a perfect group and $H$ a normal subgroup how is $G/H =\mathbb{Z}/p\mathbb{Z}$? |
Feb 19 |
answered | Ray-Singer torsion of compact 3-manifolds with finite abelian fundamental group |
Feb 17 |
answered | About the power subgroups of the Bianchi groups |