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Bockman Cheung

Bockman Cheung

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My Academic Homepage

I'm a junior undergraduate at UCLA in the department of mathematics, broadly interested in algebraic geometry and its applications, for example cluster algebras and representation theory. I am also eagerly interested in advancing human-machine interactions to push the frontiers of mathematical research.

My email address is bm[last name]@ucla.edu.

visitor count

Upcoming travels (2026):

  • June 16-20: 43rd Annual Workshop in Geometric Topology, Salt Lake City, UT
  • August 16-September 10: Montréal, QB, Canada
  • September 10-17: Boston, MA
  • September 17-23: Toronto, OT, Canada

Quiddle

Each node holds a number and has directed arrows to and from its neighbors (some days, arrows come doubled). Click a node to mutate it:

  1. every arrow touching that node reverses direction;
  2. for each arrow that used to point in → node and node → out, a new arrow is drawn straight from in to out — unless one's already there pointing the other way, in which case the two cancel;
  3. the node's number becomes (product of its new in-neighbors' numbers + product of its new out-neighbors' numbers) ÷ its old number.

That's the real mutation rule from cluster algebra theory, and a real theorem (the Laurent phenomenon, plus positivity) guarantees step 3 always lands on a positive whole number — no matter what you click. Match today's target quiver in as few moves as possible.

Difficulty: - Moves: 0 Par: -

Today's target