Biography-Mathematicians 5 Communication 3 Sociology 3 Study 3 Teaching 3 Annals of Mathematics Studies 2 Criticism and interpretation 2 Dirichlet principle 2 Dirichlet-Raum 2 English drama 2 Feminist theory 2 Harmonic analysis 2 Hilbert space 2 Holomorphic functions 2 Information theory 2 Linguistics 2 Mathematics 2 soil science 2 Acting-Study and teaching-Theatre 1 Agitprop theater 1 Algebra 1 Algebraic number theory-- Invariant theory-- P-adic numbers-- Quadratic forms-- Algebraic function 1 Approximation theory 1 Biochemistry 1 Calculus 1 Cestode Infections 1 Chemistry, Physical and theoretical 1 Columbine High School Massacre, Littleton, Colo., 1999 1 Communication-Education 1 Communicative language 1