Geodesic
On inverse dynamical and spectral problems for the wave and Schrödinger equations on finite trees. The leaf peeling method
Zapiski Nauchnykh Seminarov POMI, Mathematical problems in the theory of wave propagation. Part 45, Tome 438 (2015), pp. 7-21 
S. A. Avdonin; V. S. Mikhaylov; K. B. Nurtazina. On inverse dynamical and spectral problems for the wave and Schrödinger equations on finite trees. The leaf peeling method. Zapiski Nauchnykh Seminarov POMI, Mathematical problems in the theory of wave propagation. Part 45, Tome 438 (2015), pp. 7-21. http://geodesic.mathdoc.fr/item/ZNSL_2015_438_a0/
@article{ZNSL_2015_438_a0,
     author = {S. A. Avdonin and V. S. Mikhaylov and K. B. Nurtazina},
     title = {On inverse dynamical and spectral problems for the wave and {Schr\"odinger} equations on finite trees. {The} leaf peeling method},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {7--21},
     year = {2015},
     volume = {438},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2015_438_a0/}
}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

Interest in inverse dynamical, spectral and scattering problems for differential equations on graphs is motivated by possible applications to nano-electronics and quantum waveguides and by a variety of other classical and quantum applications. Recently a new effective leaf peeling method has been proposed by S. Avdonin and P. Kurasov for solving inverse problems on trees (graphs without cycles). It allows recalculating efficiently the inverse data from the original tree to the smaller trees, ‘removing’ leaves step by step up to the rooted edge. In this paper we describe the main step of the spectral and dynamical versions of the peeling algorithm – recalculating the inverse data for the ‘peeled tree’.

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