**Scope**

- Geometrical methods in mathematical physics
- Lie theory and differential equations
- Classical and quantum integrable systems
- Algebraic methods in dynamical systems and chaos
- Exactly and quasi-exactly solvable models
- Lie groups and algebras, representation theory
- Orthogonal polynomials and special functions
- Integrable probability and stochastic processes
- Quantum algebras, quantum groups and their representations
- Symplectic, Poisson and noncommutative geometry
- Algebraic geometry and its applications
- Quantum field theories and string/gauge theories
- Statistical physics and condensed matter physics
- Quantum gravity and cosmology

SIGMA is a refereed purely electronic arXiv overlay journal with a lot of mirrors around the world. In spite of being open access, the journal does not charge authors for publication. SIGMA is a non-profit, volunteer-run project operated by the following people (all from the Institute of Mathematics of NAS of Ukraine):

- Editor: Anatoly Nikitin
- Associate Editors: Vyacheslav Boyko, Roman Popovych, Iryna Yehorchenko, Alexander Zhalij
- Executive Assistant: Vira Pobyzh
- Copy-editors: Vira Pobyzh, Galyna Popovych