In concrete problem

We will point out another compact subalgebra in the complex semisimple algebra G, which frequently appears in concrete problems of Hamiltonian geometry and mechanics. Let us examine the two involutions described above, namely a, which determines the compact form, and r, which determines the noncompact normal form. Let us consider a set G of points fixed under both involutions. Since a = 1 on 0tTo and r = 1 on To 0 Ea 0 it follows that Gn is spanned by the... 

How to integrate all these different forms of knowledge in a rational and responsible way in concrete problem solving situations is thus the big issue for engineering epistemology. The chapters in this part all deal with this complex phenomenon. 

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