… In this section we review the derivation of the schema evolution equation (Stephens and
Waelbroeck, 1997; Stephens and Waelbroeck, 1998). Given that the microscopic degrees of …

We develop a theory for the market impact of large trading orders, which we call metaorders
because they are typically split into small pieces and executed incrementally. Market impact …

We examine a data-set of institutional trades where approximately one-fourth of the trades
were labelled as having been created for cash flow purposes. We aggregate near-…

A theoretical and experimental analysis is made of the effects of self-adaptation in a simple
evolving system. Specifically, we consider the effects of coding the mutation and crossover …

An evolution equation for a population of strings evolving under the genetic operators,
selection, mutation, and crossover, is derived. The corresponding equation describing the …

This is a theory of 2+ 1 gravity with a spacelike lattice and continuous time. It is derived from
the Chern-Simons formulation of 2+ 1 gravity, in which the frame vectors are canonically …

We propose a new formulation of 2 + 1 gravity, with a finite number of observables. The initial
surface is represented as a (non-planar) polygon in Minkowski space, with edges that are …

We analyze the schema theorem and the building block hypothesis using a recently derived,
exact schemata evolution equation. We derive a new schema theorem based on the …

Topological gravity is the reduction of Einstein's theory to spacetimes with vanishing curvature,
but with global degrees of freedom related to the topology of the universe. We present an …

We construct a quantum measure on the power set of non-cyclic oriented graphs of N points,
drawing inspiration from one-dimensional directed percolation. Quantum interference …