3 thoughts on “Euler’s Formula, Fibonacci, the Bayer-Billera Theorem, and Fine’s CD-index

  1. Pingback: Carnival of Mathematics « Rigorous Trivialities

  2. Jonathan Vos Post

    It seems clear that, in the 24-cell exercise, that the beautiful self-dual 4-polytope has 24 octahedral facets. Hence f_0 = f_3 = 24. Further, f_1 = f_2 =96. Then f_{02} = 288, and f_{03}=192. Anything left to compute?

    Reply
  3. Pingback: Why Planar Graphs are so Exceptional « Combinatorics and more

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s