Skip to main content
5 events
when toggle format what by license comment
Jan 21, 2019 at 14:49 comment added Janne Kokkala @MatthiasUrlichs If you look at the images in the question, the size of the circle of optimal 6- and 7-packings are the same, so removing any circle from the optimal 7-packing creates another optimal 6-packing. And if you remove a circle not on the center, you can move the other circles around a bit. So the $d$ is equal for both cases.
Jan 21, 2019 at 14:31 vote accept Joseph O'Rourke
Jan 21, 2019 at 9:36 comment added Wojowu @MatthiasUrlichs Assuming perfect, rigid disks, the $d$ is the same.
Jan 21, 2019 at 8:08 comment added Matthias Urlichs However, the $d$ in $6 V(d)$ is smaller than the one in $5 V(d)$. You need to show that the inequality still holds.
Jan 20, 2019 at 22:58 history answered Martin Hairer CC BY-SA 4.0