Home›Browse›Hilbert's eighteenth problem🌐EnglishEnglishEspañolItalianoSvenskaРусский中文日本語EntityQ11059889· pop 6· linked from 35 articlesHilbert's eighteenth problemSign in to saveOn lattices and sphere packing in Euclidean spaceAvailable in 5 languagesEspañol中文GreekSvenskavia Wikidata sitelinks · CC0