Mathematical Art
Brouwer's Fixed Point Theorem - A Poem Proof
I slept.
And slumbering dreamt.
And dreaming, I ambled clockwise around a great circular lake in an infinite desert.
And ambling, caught my sweater on a thorn, and began to unravel.
And unravelling, I saw all the points of the lake.
And observed, the lake began to stir.
And stirring, the surface did not break, remaining contained.
And contained, the visited a violent vortex, but STILL the surface did not break.
And unbroken, the whirring pool... ...subsided, as the last sweater thread unwound.
And unwound in the setting sun I spied again the thorn.
And spying, noticed that no point on the lake was where it began.
And beginning at each point emanated a single ray of light, through the point it was prior perturbation, each ray illuminating a spot on the shore.
And sure that the points perturbed from the bank illuminated those points from whence they came, I tied the ends of my sweater together and HEAVED. And heaved and heaved.
And, so heft, the thread, without breaking or crossing the lake, rewound unto me a complete sweater.
And sweating from the exertion, I woke.
And waking, recalled that one is not zero, snapping the thread.
Stairwell chalk graffiti: Conway and Kinoshita-Terasaka mutant knots
Stairwell chalk graffiti: The Hopf fibration
Disconnected Space
This is a poem I wrote during the two terms I was enrolled in the PhD program at the University of Oregon before returning to Australia for family reasons.
Let X be a space.
Let X be me.
X is a disconnected space.
That is, I am a union of disjoint open sets;
A and B.
A is a Eugene neighbourhood of trees, unfamiliar streets, and Deady Hall;
A neighbourhood of people misspelling colour and mispronouncing the letter zed;
A compact 2-manifold with boundary.
A boundary of ocean and money.
B is non-metrizable.
B is the contradiction of a deep connection to a land not of my ancestors.
B is the harsh dry desert winds of the north west Australian outback.
The red dirt of iron mining country forms a dense base for V;
The uncountable red dirt which always was and always will be aboriginal land.
B is a vast southern land whose cardinality is inaccessible, to recursion and to me.
B is my home.
B is my heart.
There is no path from A to B;
No homotopy of points from here to there.
My heart lies in the complement of my body.
Let X be a space.
Let X be me.
X is a disconnected space.
Some board pictures I like
A congratulatory board for graduating honours students
Sliding whiteboards for a talk for undergraduates about geometric group theory