Journal of Nonlinear Mathematical Physics is a mathematical journal devoted to the fast publication of high quality research papers concerned with the description, solution and application of nonlinear problems in physics, mathematics, and applied mathematical systems. Subject areas include (but are not limited to):

Nonlinear Equations of Mathematical Physics
Difference Equations and Functional Equations in Mathematical Physics
Harmonic Analysis in Mathematical Physics
Integrability and Non-integrability, Scattering/Inverse Scattering, Painlevé Analysis
Classical and Quantum Many Body Problems
Discrete Integrable Systems and Discrete Geometry
 
Differential Geometry in Mathematical Physics
Geometry and Algebra of Nonlinear Equations
Instantons, Monopoles and Gauge Theory
Field Theory, Deformation and Geometric Quantization
Applications of Lie Groups, Lie Algebras and Higher Structures
Quasi-exactly Solvable Models in Quantum Mechanics
Symmetries and Invariants in Mathematical Physics 
Applications of Twistor Theory
 
Non-Commutative Geometry in Mathematical Physics
Super Geometry and Super Integrable Systems
Quantum Algebras, Non-Associative Algebras and Applications
Number Theory, p-adic Analysis and Ultrametric Analysis in Mathematical Physics 
 
Computational Problems in Mathematical Physics
Numerical Simulations in Applied Mathematics
Complex Fluids
Nonlinear Waves
Fractal Theory and Applications in Mathematical Physics
Nonlinear Optics and Nonlinear Signal Processing