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Oligomers with complex couplings as $\cal{PT}$-symmetric systems. (arXiv:2005.08947v1 [nlin.PS]) http://arxiv.org/abs/2005.08947
Oligomers with complex couplings as $\cal{PT}$-symmetric systems. (arXiv:2005.08947v1 [nlin.PS]) http://arxiv.org/abs/2005.08947