Data:L10a152/Multivariable Alexander

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle v u^4+2 v^2 u^3-3 v u^3-v^2 w u^3+2 v w u^3+u^3-2 v^2 u^2+4 v u^2+2 v^2 w u^2-4 v w u^2+2 w u^2-2 u^2-2 v u-v^2 w u+3 v w u-2 w u+u-v w}