A bstract The functional renormalization group equation with a compactly supported smooth
(CSS) regulator function is considered. It is demonstrated that in an appropriate limit the …

The positions of the l= 0 S-matrix poles are calculated in generalized Woods–Saxon (GWS)
potential and in cut-off generalized Woods–Saxon (CGWS) potential. The solutions of the …

By using an exact analytical non-Hermitian approach in terms of resonance states, we show
that the exponential-nonexponential transition of decay at long times physically represents a …

We investigate the decay of initial states that possess a tail that extends beyond the
interaction potential region, for potentials of arbitrary shape that vanish exactly after a …

The energy gap between the first excited state and the ground state is calculated for the
quantized anharmonic oscillator in the framework of the functional renormalization group …

A renewed version of the computer code GAMOW (Vertse et al., 1982) is given in which the
difficulties in calculating broad neutron resonances are amended. New types of …

The classical square well potential is smoothed with a finite range smoothing function in
order to get a new simple strictly finite range form for the phenomenological nuclear …

Cutting off the tail of the Woods–Saxon (WS) and generalized WS (GWS) potentials changes
the distribution of the poles of the S-matrix considerably. Here, we modify the tail of the cut …

We consider exact expansions of the decaying wave solution to the Schrödinger equation in
terms of continuum energy solutions (Hermitian) and resonant states involving transient …

A renewed version of the computer code GAMOW~\cite {[Ve82]} is given in which the
difficulties in calculating broad neutron resonances are amended. New types of …