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math-ph2025
A Closed-Form Approach to Oscillatory Integrals in Level-Crossing Physics
Maseim B. Kenmoe, Anicet D. Kammogne
We present a closed-form, exact analytical solution, valid at finite times, to a class of multiple integrals with highly oscillatory kernels. Our approach leverages the intimate co…
math-ph2020
Dynamical perturbation theory for eigenvalue problems
Maseim Kenmoe, Matteo Smerlak, Anton Zadorin
Many problems in physics, chemistry and other fields are perturbative in nature, i.e. differ only slightly from related problems with known solutions. Prominent among these is the…