Numerical Solution of the Inverse Scattering Problem for the Acoustic Equation in an Absorptive Layered MediumSpringer Science and Business Media LLC - Tập 29 - Trang 83-95 - 2018
A.V. Baev
We consider a nonlinear ordinary differential equation associated with a number of inverse scattering problems in acoustic and seismic sounding in which acoustic impedance and an impedance-dependent unknown damping coefficient are the unknown function. We prove that the Cauchy problem is uniquely solvable when the derivative is treated as a generalized function. It is established that the inverse ...... hiện toàn bộ
Computation of a Redundant Ring in a Hierarchical Communication SystemSpringer Science and Business Media LLC - Tập 14 - Trang 183-215 - 2003
M. B. Akhmadi
A hierarchical communication network, i.e., a multicommodity-flow star network, is considered. An exact bound is derived for the necessary and sufficient ring redundancy that guarantees attainment of the liveness upper bound.