# background material

## Snapshots of modern mathematics from Oberwolfach

 Arrangements of lines BrianHarbourne , ThomasSzemberg CC BY-NC-SA We discuss certain open problems in the context of arrangements of lines in the plane.... What does ">" really mean? BruceReznick CC BY-NC-SA This Snapshot is about the generalization of “>” from ordinary numbers to so-called fields. At the end, I will touch on some ideas in recent... The ternary Goldbach Problem HaraldHelfgott CC BY-NC-SA Leonhard Euler (1707–1783) – one of the greatest mathematicians of the eighteenth century and of all times – often corresponded with a friend of... Matrixfaktorisierungen WolfgangLerche CC BY-NC-SA Im Folgenden soll ein kurzer Abriss des Themas Matrixfaktorisierungen gegeben werden.... Dirichlet Series John E.McCarthy CC BY-NC-SA Mathematicians are very interested in prime numbers. In this snapshot, we will discuss some problems concerning the distribution of primes and...