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math.SP2023
On recovering Sturm--Liouville-type operators with global delay on graphs from two spectra
Sergey Buterin
We suggest a new formulation of the inverse spectral problem for second-order functional-differential operators on star-shaped graphs with global delay. The latter means that the d…
math.SP2023
An inverse Sturm--Liouville-type problem with constant delay and non-zero initial function
Sergey Buterin, Sergey Vasilev
We suggest a new statement of the inverse spectral problem for Sturm--Liouville-type operators with constant delay. This inverse problem consists in recovering the coefficient (oft…