## Complex Systems: Errata and Changes, Volume 1

**Bruce M. Boghosian**

**C. David Levermore**

**Daniel G. Maeder**

**Kristian Lindgren**

#### Abstract

All known errata and changes are given below for articles published in *Complex Systems*, Volume 1, 1987.

**Bruce M. Boghosian and C. David Levermore, "A Cellular Automaton for Burgers' Equation," pages 17-29**

The two columns of figures on page 27 are transposed; they are labelled correctly.

The words "Below we plot" on page 28 refer to the plots on page 27.

**Daniel G. Maeder, "The Free Energy Concept in Celluar Automaton Models of Solid-Solid Phase Transitions," pages 131-143**

The caption for figure 2 should be replaced by the following:

Printout of a hypothetical two-dimensional cellular automaton model for a shape memory alloy, at a temperature producing about one-third of martensite in equilibrium with two thirds of austenite. The pattern resembles some enlarged details of figure 1c where the variants A, B, C, D show up as different gray shades. For better contrast, austentic cells have been represented by colons rather than by a letter. At high temperature, each martensitic plate must shrink into a single permanent "germ" cell of the respective variant. A realistic model should contain very few germs (i.e. crystal defects) per 1000 cells.

**Kristian Lindgren, "Correlations and Random Information in Cellular Automata," pages 529-543**

Equation (2.11) should be

In section 3, "Algorithmic information theory," the notation should be , should be , should be . In equation (4.1), should be .

Equation (4.5) should be

The second part of equation (4.7) should be

The second half of equation (4.14) is missing a right parenthesis before

In section 4, should be