2 problems

For real $c>1$, consider the Minkowski spheres … The kissing number is the maximum number of non-overlapping congruent spheres tangent to a given sphere. Conjecture on Minkowski-sp…

For a bounded set $K\subset\mathbb{R}$, let … Let $\mathrm{kiss}_d$ be the kissing number in $\mathbb{R}^d$. Kissing-number conjecture. For every dimension $d$, … The evident lower…