| Abstract: |
| This work iis concerned with the existence of solutions for a class of local Hamiltonian Choquard-type elliptic systems in $\mathbb{R}^2.$ Typical features of this class of problems are a lack of compactness because of the unboundedness of the domain and that the critical growth and the energy functional associated with this class of systems are strongly
indefinite, that is, the domain has a saddle-point geometry where both positive and negative subspaces
of the quadratic form are infinite-dimensional. Moreover, the presence of the nonlocal term in the nonlinearity provides a series of difficulties in obtaining certain estimates. |
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