Homology theory 13 Algebra, Homological 10 Mathematics 7 Algebra 5 Group theory 4 Bioinformatics 3 Commutative algebra 3 Sheaf theory 3 Categories (Mathematics) 2 Cohomology operations 2 Differential -- Integral geometry-- Mathematics 2 Digital techniques 2 Form perception 2 Geometry, Algebraic 2 Graph theory-- Mathematics 2 Image analysis 2 Image processing 2 Lecture Notes in Mathematics 2 Molecular biology 2 Shapes 2 Three-dimensional imaging 2 Algebraic Topology 1 Algebraic topology 1 Algebraic topology -- Classical topics -- Degree, winding number 1 Algebraic topology -- Homology and cohomology theories -- Other homology theories 1 Algebraic topology, Cellular homology, Homotopy theory, Cohomolgy 1 Atiyah-Singer index theorem 1 Bioinformatics. Genetics -Mathematical models. Molecular biology -Mathematical models 1 Calculus of tensors 1 Combinatorial topology 1