The separated electromagnetic responses RL(q, ω) and RT (q, ω) for inclusive electron scattering off nuclei are studied within a functional scheme.

The standard mathematical treatment of continuity for real-valued functions presupposes a model in which arbitrarily ne distinctions can be drawn between neighbouring states. In a qualitative model these distinctions are obliterated by treating whole ranges of states as qualitatively indistinguishable. In this paper we show how topological considerations can be used, in the form of a relation c...

abstract background: historical research has limitations in applying proper and credit-worthy chronology to clarify the data. in this methodology, the application of oral history is one of the ways in which answers to questions addressed by the research theme are elicited. oral history, as a clear and transparent tool, needs to be applied with guidelines for qualitative researchers regarding da...

In dynamic epistemic logic, actions are described using action models. In this paper we introduce a framework for studying learnability of action models from observations. We present first results concerning propositional action models. First we check two basic learnability criteria: finite identifiability (conclusively inferring the appropriate action model in finite time) and identifiability ...