Title: Symmetries and related topics in differential and difference equations
Subjects: Difference and functional equations -- Difference equations -- Difference equations, scaling ($q$-differences), Differential geometry -- Classical differential geometry -- Curves in Euclidean space, Topological groups, Lie groups -- Noncompact transformation groups -- General theory of group and pseudogroup actions, Symmetry (Mathematics), Dynamical systems and ergodic theory -- Finite-dimensional Hamiltonian, Lagrangian, contact, and nonholonomic systems -- General theory, relations with symplectic geometry and topology, Mechanics of particles and systems -- Axiomatics, foundations -- Axiomatics, foundations, Difference equations, Ordinary differential equations -- Differential equations in the complex domain -- Algebraic aspects (differential-algebraic, hypertranscendence, group-theoretical), Congresses, Differential-algebraic equations, Partial differential equations -- Representations of solutions -- Solutions in closed form, Nonassociative rings and algebras -- Lie algebras and Lie superalgebras -- Lie algebras of linear algebraic groups, Partial differential equations -- General topics -- Geometric theory, characteristics, transformations, Symmetry, Differential equations, partial