Jewels are Forever

I. Automata I: Finite State Machines.- Semilattices of Fault Semiautomata.- Thompson Languages.- On Some Special Classes of Regular Languages.- Synchronized Shuffle and Regular Languages.- Synchronization Expressions:Characterization Results and Implementation.- II. Automata II: More General Devices.- Uniformization of Rational Relations.- Tree-Walking Pebble Automata.- Counter Machines: Decision Problems and Applications.- On the Equivalence of Finite Substitutions and Transducers.- Complementation of Büchi Automata Revisited.- III. Automata with Multiplicities.- Languages Accepted by Integer Weighted Finite Automata.- A Power Series Approach to Bounded Languages.- Full Abstract Families of Tree Series I.- Linear Automata, Rational Series and a Theorem of Fine and Wilf.- IV. Formal Languages.- Numerical Parameters of Evolutionary Grammars.- Iterated GSM Mappings: A Collapsing Hierarchy.- On the Length of Words.- An Insertion into the Chomsky Hierarchy?.- Word Length Controlled DT0L Systems and Slender Languages.- V. Algorithms and Complexity.- Program-Size Complexity of Initial Segments and Domination Reducibility.- Stability of Approximation Algorithms and the Knapsack Problem.- Some Examples of Average-case Analysis by the Incompressibility Method.- Complexity of Language Recognition Problems for Compressed Words.- Algorithms on Continued Fractions.- VI. Combinatorics of Words.- On the Index of Sturmian Words.- Repetitions and Boxes in Words and Pictures.- Small Aperiodic Sets of Triangular and Hexagonal Tiles.- Quadratic Word Equations.- Fair and Associative Infinite Trajectories.- Forbidden Factors in Finite and Infinite Words.- VII. Novel Directions.- Reversible Molecular Computation in Ciliates.- Logic, Probability, and Rough Sets.- List of Contributors.