Some new integrable systems of two-component fifth order equations
  In this work we develop some fifth-order integrable coupled systems of weight $0$ and $1$ which possess seventh-order symmetry. We establish four new systems, where in some cases, related recursion operator and bi-Hamiltonian formulations are given. We also investigate the integrability of the developed systems. 
Daryoush Talati, Abdul-Majid Wazwaz
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