Let A be a complex hyperplane arrangement, with fundamental group G and holonomy Lie algebra H. Suppose H3 is a free abelian group of minimum possible rank, given the values the Möbius function μ :… (More)

where {ΓkG}k≥1 is the lower central series (LCS) of the group, defined, inductively, by Γ1G = G and Γk+1G = (ΓkG,G), and the Lie bracket [x, y] is induced from the group commutator (x, y) = xyxy.… (More)

We generalize results of Hattori on the topology of complements of hyperplane arrangements, from the class of generic arrangements, to the much broader class of hypersolvable arrangements. We show… (More)

Traditionally-processed Greek sausages were produced with three different fat levels (10, 20 and 30% fat). Some sausages were air dried (23-28°C, 64-76% RH) for 2h and stored at 3-7°C and 65-75% RH.… (More)

The interplay between geometry and topology on complex algebraic varieties is a classical theme that goes back to Lefschetz. Our paper follows this line of investigation, for complements of… (More)

Formality is a topological property, defined in terms of Sullivan’s model for a space. In the simply-connected setting, a space is formal if its rational homotopy type is determined by the rational… (More)

Chemical, physical, microbiological and sensory analyses were performed on 31 samples of Greek traditional sausages. The following attributes were recorded: fat 15.49-56.86%, moisture 21.92-65.40%,… (More)

We investigate the relationship between the geometric Bieri–Neumann– Strebel–Renz invariants of a space (or of a group), and the jump loci for homology with coefficients in rank 1 local systems over… (More)

A simplicial complex L on n vertices determines a subcomplex TL of the ntorus, with fundamental group the right-angled Artin groupGL. Given an epimorphism χ : GL → Z, let T L be the corresponding… (More)