Algebraic functions Algebra 6 Algebraic fields 5 Textbooks 4 Mathematical models 3 Algebraic number theory 2 Functional analysis 2 Generalized inverses 2 Goppa codes 2 Inverse problems (Differential equations) 2 Linear operators 2 Numerical solutions 2 Singular perturbations (Mathematics) 2 Data structures (Computer science) 1 Exponential functions 1 Geometry, algebraic 1 Mathematics 1 Study and teaching (Secondary) 1