Mathematics 92 Differential equations, Partial 46 Mathematical models 45 Mathematical analysis 44 Functional analysis 34 Differential equations 31 Congresses 28 Topology 28 Data processing 27 Mathematical optimization 26 Geometry, Algebraic 25 Number theory 25 Numerical analysis 25 Numerical solutions 25 Algebras, Linear 23 Geometry, Differential 23 Stochastic processes 21 Geometry 20 Algebra 19 Algebraic topology 19 Graph theory 19 Differentiable dynamical systems 18 History 18 Harmonic analysis 17 Mathematical physics 17 Calculus 16 Fluid dynamics 16 Lie groups 15 Markov processes 15 Probabilities 15