Decolonising the Rainbow Flag

Decolonising the University Curriculum

The student protests of 2015 precipitated a renewed interest in the decolonisation of the university in South Africa, and by association the decolonisation of the university curriculum. The decolonisation of the curriculum is an important conversation, and long overdue, given that the Western model of academic organisation on which the South African university is based, remains largely unchalle...

The affine flag variety

The French Flag Model

The French flag model represents how embryonic cells receive and respond to genetic information and subsequently differentiate into patterns. Created by Lewis Wolpert [5] in the late 1960?s, the model uses the French tricolor flag as visual representation to show how embryonic cells can interpret genetic code to create the same pattern even when certain pieces of the embryo are removed. Wolpert...

Flag Variety

1.1. QCoh on a stack. We know that QCoh forms a stack, i.e., sheaf of groupoids, over Schfpqc(S) for any scheme S. Thus if we have an fpqc sheaf of groupoids X over S, we can define QCoh(X ) as maps of sheaves X → QCoh on Schfpqc(S). By 2-Yoneda, this definition agrees with the usual notion of quasicoherent sheaves if X is a scheme. For various other (usually equivalent) definitions in the case...

Flag algebras

Asymptotic extremal combinatorics deals with questions that in the language of model theory can be re-stated as follows. For finite models M, N of an universal theory without constants and function symbols (like graphs, digraphs or hypergraphs), let p(M, N) be the probability that a randomly chosen sub-model of N with |M | elements is isomorphic to M . Which asymptotic relations exist between t...