Transmutation operators in differential equations and spectral theory can be used to reveal the relations between different problems, and often make it possible
This open access book gives a systematic introduction into the spectral theory of differential operators on metric graphs. Main focus is on the fundamental rela
Inverse problems of spectral analysis consist in recovering operators from their spectral characteristics. Such problems often appear in mathematics, mechanics,
Presents some important classical and modern results of the series of Faber polynomials and their applications. Interest in this subject has increased rapidly o
This book addresses a new interdisciplinary area emerging on the border between various areas of mathematics, physics, chemistry, nanotechnology, and computer s
