A new structure with the special property that instantaneous
resurrection and mass disaster are imposed on an ordinary
birth-death process is considered. Under the condition that the
underlying birth-death process is exit or bilateral, we are able
to give easily checked existence criteria for such Markov
processes. A very simple uniqueness criterion is also established.
All honest processes are explicitly constructed. Ergodicity
properties for these processes are investigated. Surprisingly, it
can be proved that all the honest processes are not only recurrent
but also ergodic without imposing any extra conditions.
Equilibrium distributions are then established. Symmetry and
reversibility of such processes are also investigated. Several
examples are provided to illustrate our results.
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