Kalpa: rolling balls

From pages of J. Baez 

27 Sep and 4 , 11 Oct 2018

Kalpa Madhawa
Octonions and the rolling ball 

(Three parts)



Extra materials
Books suggested by Kalpa:

• Travian Dray:  The Geometry of the Octonions 
• John Hortan Convey:  On Quaternions and Octonions 

See also the paper and the video

• J. Baez and J. Huerta: G2 and the rolling balls 
• J. Baez: Lecture on Youtube

And here are suggestions from Terry-Ann:

• Youtube: on Octonions
• brief video of her stating that Octonions relate to particle physics, (without much explanation)

Shajesh: topological insulators

From Wikipedia

6 , 13, 20 September, 2018 

K.V. Shajesh  (Physics)  
Towards understanding topological insulators in a classical setting 

1. Lagrangian
2. Boundary conditions
3. Optical properties