Abstract We introduce an index for symmetry-protected topological (SPT) phases of infinite fermionic chains with on-site symmetry given by a finite group G . This takes values in $\mathbb {Z}_2 \times H^1(G,\mathbb {Z}_2) H^2(G, U(1)_{\mathfrak {p}})$ generalised Wall law under stacking. show that this is invariant the classification SPT phases. When ground state translation and has reduced den...

Abstract This paper seeks to investigate the interaction between Law, society, and social change in context of a judicial case. For this purpose, case Colombian Constitutional Court decision C-075 2007, on recognition patrimonial rights same-sex couples, will be analyzed. The objective is determine how was identified, proven, used law premises Luhmann Teubner were employed develop analysis alon...