curiosamathematica
Some days ago I noticed a brilliant bumper sticker, saying “I ♥ topology” where the heart was replaced by a topologically homeomorphic disk (●). Amused by the idea, I tried to work out some related versions for other mathematical subjects. Here they are:
- For geometry, the obvious choice was a cardioid:

- I’m thinking of changing “Algebra” into “Arithmetic” here:

- A connect-the-dots heart for graph theory:

- Perhaps fractals aren’t really a mathematical subject on their own, but nevertheless they are too popular:

- Too bad a heart shape doesn’t have that many symmetries:

- This one is difficult categorizing! It’s related to Frobenius algebras, module and representation theory, topological quantum field theory… Which mathematical subject should it represent?

- A knotted heart for knot theory:

- I like this one, the Lorenz attractor for chaos theory:

- The heart-shaped Bonne projection:

- I hope you recognize a Venn diagram here:

- Hmmm, statistics, a pie chart?

- Finally, this is the one it all started with:

What do you guys think? I’m still thinking about a heart for genuine algebra, linear algebra, number theory, combinatorics and mathematical logic. Please share any remarks, ideas, subjects?