2023/08/16 by Vojvodić, Biljana, Djurić, Nebojša, Vladičić, Vladimir
#34A55 #34K29 #FOS: Mathematics #Spectral Theory (math.SP)
paper · doi:10.48550/arxiv.2308.08439
We study the inverse spectral problems of recovering Dirac-type functional-differential operator with two constant delays a1 and a2 not less than one-third of the interval. It has been proved that the operator can be recovered uniquely from four spectra under the condition 2a1+(a2)/(2)≥ π, while it is not possible otherwise.