Connection between Lorenz-Fibonacci substitutions and Lorenz-attractor dynamics

Establish the connection between the substitutions \(\zeta_{k,r}\) and \(\phi_{k,r}\), their corresponding dynamical systems, and the dynamics of the Lorenz attractor.

Background

The paper introduces two families of substitutions, the (k,r)(k,r)-Lorenz-Fibonacci substitutions ζk,r\zeta_{k,r} and the direct Lorenz-Fibonacci substitutions ϕk,r\phi_{k,r}. Although these substitutions share the same incidence matrix and are related to integer sequences arising in symbolic models of the Lorenz attractor, their combinatorial structures and associated graphs differ substantially.

The authors identify the relationship between these substitutions, their dynamical systems, and the Lorenz-attractor dynamics as unresolved. This problem seeks a detailed dynamical interpretation of the substitutions and their associated systems within the dynamics of the Lorenz attractor.

References

The connection of the substitutions \zeta_{k,r} and \phi_{k,r} (and their corresponding dynamical system) with the dynamics of the Lorenz attractor remains an open problem.

On the Lorenz-Fibonacci sequences and substitutions  (2608.12739 - Martín et al., 13 Aug 2026) in Section Conclusions