A bundling problem revisited
  It was conjectured by M. Glasser and S. Davison and later proved by A. Eremenko that the certain animals should gather close to each other in order to decrease the total heat loss. In this paper we show that it is not always true for the individual heat loss. This gives a negative answer to a question posed by A. Eremenko. 
Paata Ivanisvili
math.AP