4 citations · 7 across the 5 of their papers we have counts for
5 papers
On non-selfadjoint operators with finite discrete spectrum
Olivier Bourget, Diomba Sambou, Amal Taarabt
We consider some compact non-selfadjoint perturbations of fibered one-dimensional discrete Schrödinger operators. We show that the perturbed operator exhibits finite discrete spect…
Asymptotic estimates of solutions to time-fractional diffusion equations with space-dependent variable order
Yavar Kian, Diomba Sambou, Eric Soccorsi
We examine the short and long-time behaviors of time-fractional diffusion equations with variable space-dependent order. More precisely, we describe the time-evolution of the solut…
Quantum time delay for unitary operators: general theory
Diomba Sambou, Rafael Tiedra de Aldecoa
We present a suitable framework for the definition of quantum time delay in terms of sojourn times for unitary operators in a two-Hilbert spaces setting. We prove that this time de…
Resonances on regular tree graphs
Olivier Bourget, Diomba Sambou, Amal Taarabt
We investigate the distribution of the resonances near spectral thresholds of Laplace operators on regular tree graphs with -fold branching, , perturbed by nonself-adj…
Spectral shift function and Resonances near the low ground state for Pauli and Schrödinger operators
Diomba Sambou
We study the spectral shift function (SSF) and the resonances of the operator in near the ori…