The Bog Singer

The Kadison-Singer Conjecture

We are given a large integer N , and a fixed basis {ei : 1 ≤ i ≤ N} for the space H = C . We are also given an N -by-N matrix H that has all its diagonal entries zero, and has norm one. If σ ⊆ {1, 2, . . . , N}, let Pσ be the projection onto the space Hσ := ∨{ei : i ∈ σ}. Call such a projection basic, and the range of a basic projection a basic subspace. For each constant 0 < γ < 1, we want to ...

Wolf Singer

European Bog Bodies: From the Iron Age Peat Bog to the 21st Century

Well preserved bodies dating from the prehistoric era to the 19th century have been found across northwestern Europe; specifically in the peat bogs of Ireland, Great Britain and Denmark. These discoveries were especially prevalent in the late 19th and early 20th centuries when mass peat extraction was at its height. Many of these finds have been dated to the Iron Age and have previously been at...

Some bog denizens

Bog. interface-//Culture

reemphasized a classic issue within political and cultural theory – the relationship between individual human agency and social structure: to what extent do local actions reproduce or transform global structures? Several early accounts of the internet expressed high hopes, not least, regarding its participatory potential and transformative capacity. Could clicks cumulatively change the world? –...