Dokazujeme, že barevnost R^6 je alespoň 11. Dále vylepšujeme dolní odhady na barevnost Q^5 na 8 a na barevnost Q^7 na 15. (cs)
We prove that the chromatic number of R^6 is at least 11. We also improve the lower bounds on the chromatic number of Q^5 and Q^7 to 8 and 15, respectively.
We prove that the chromatic number of R^6 is at least 11. We also improve the lower bounds on the chromatic number of Q^5 and Q^7 to 8 and 15, respectively. (en)