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ISOSPECTRALITY FOR GRAPH LAPLACIANS UNDER THE CHANGE OF COUPLING AT GRAPH VERTICES: NECESSARY AND SUFFICIENT CONDITIONS
Ershova, Yulia, Karpenko, Irina I., Kiselev, Alexander V.Language:
english
Journal:
Mathematika
DOI:
10.1112/s0025579314000394
Date:
January, 2015
File:
PDF, 236 KB
english, 2015