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math.NA2022
An Ultra-Weak Space-Time Variational Formulation for the Schrödinger Equation
Stefan Hain, Karsten Urban
We present a well-posed ultra-weak space-time variational formulation for the time-dependent version of the linear Schrödinger equation with an instationary Hamiltonian. We prove o…
math.NA2022
An ultraweak variational method for parameterized linear differential-algebraic equations
Emil Beurer, Moritz Feuerle, Niklas Reich +1
We investigate an ultraweak variational formulation for (parameterized) linear differential-algebraic equations (DAEs) w.r.t. the time variable which yields an optimally stable sys…