EntityQ2421905· pop 13· linked from 30 articlesMayer–Vietoris sequenceSign in to savelong exact sequence describing how the (co)homology of a space relates to that of two subspaces whose interiors cover the total spaceConnectionsexact sequenceEntitycohomologyEntityhomological algebraEntityhomotopyEntitySpringer Science+Business MediaEntityn-sphereEntityEilenberg–Steenrod axiomsEntityAustriaCountryViennaEntityalgebraEntityInternational Standard Book NumberEntitylinear algebraEntityreal numberEntitytopologyEntitydigital object identifierEntityInternational Standard Serial NumberEntitygroupEntityempty setEntitymathematical inductionEntityOCLC, Inc.EntityCategoriesHomology theory