Realizations of $su(1,1)$ and $U_q(su(1,1))$ and generating functions for orthogonal polynomials
Realizations of Real Low-Dimensional Lie Algebras
Realizations of real semisimple low-dimensional Lie algebras
Realizations of the Lie superalgebra q(2) and applications
Realizing holonomic constraints in classical and quantum mechanics
Recent Applications of the Theory of Lie Systems in Ermakov Systems
Recent developments in quantum mechanics with magnetic fields
Recent Developments on Ising and Chiral Potts Model
Recent Progress in Quantum Spin Systems
Recent Results in Infinite Dimensional Analysis and Applications to Feynman Integrals
Recent results in semiclassical approximation with rough potentials
Recent Results on Non--Adiabatic Transitions in Quantum Mechanics
Recent theoretical progress on an information geometrodynamical approach to chaos
Recherches autour de la theorie de Markoff
Reciprocal relativity of noninertial frames and the quaplectic group
Reciprocal relativity of noninertial frames: quantum mechanics
Reciprocal Symmetry and Equivalence between Relativistic and Quantum Mechanical Concepts
Reciprocal Symmetry and the Origin of Spin
Reciprocal transformations and deformations of integrable hierarchies
Reciprocity Independent Lorentz Transformation