🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsРусскийالعربيةفارسی한국어中文日本語EntityQ429593· pop 13· linked from 234 articlesBetti numberAlso known as Betti numbersused to distinguish topological spaces based on the connectivity of n-dimensional simplicial complexesAvailable in 13 languagesEspañolFrançaisDeutsch中文日本語РусскийItalianoCatalanNederlandsUkrainianفارسیConnectionshomologyEntitycyclic groupEntityCategoriesAlgebraic topologyGenerating functionsGraph invariantsTopological graph theory