  A presentation of the Vaidya type Schwarzschild-like black holes with flat,
AdS and dS asymptotics in 4-dimensional general relativity in the form of a
pointlike mass is given. True singularities are described by making the use of
the Dirac $\delta$-function in a non-contradictory way. The results essentially
generalize previous derivations where the usual Schwarzschild black hole
solution is represented in the form of a point particle. The field-theoretical
formulation of general relativity, which is equivalent to its standard
geometrical formulation, is applied as an alternative mathematical formalism.
Then perturbations on a given background are considered as dynamical fields
propagating in a given (fixed) spacetime. The energy (mass) distribution of
such field configurations is just represented as a point mass. The new
description of black holes' structure can be useful in explaining and
understanding their features and can be applied in calculations with black hole
models. A possibility of application of the field-theoretical formalism in
studying the regular black hole solutions is discussed.
