The strictly almost
equicontinuous actions (SAE-actions) are characterized with notions from the
theory of proper actions (P-actions). Roughly speaking we prove that every
SAE-action is a restriction of a P-action. Through this characterization we are
able:
(1) To improve known results of the theory of SAE-actions and to get new ones
concerning the structure of the acting group and the (phase) space.
(2) To classify all SAE-actions, which extend a given equicontinuous
action.
The more general assumptions on the space, under which the theory of
SAE-actions works, provided the motivation to refine and improve upon the
corresponding assumptions of the theory of P-actions.
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