Table of Contents

Invited Talks.- Recent Developments in Algorithmic Teaching.- Monadic Second-Order Logic for Graphs: Algorithmic and Language Theoretical Applications.- Descriptional and Computational Complexity of Finite Automata.- Hypothesis Spaces for Learning.- State Complexity of Nested Word Automata.- Regular Papers.- A Language-Based Comparison of Extensions of Petri Nets with and without Whole-Place Operations.- Minimal Union-Free Decompositions of Regular Languages.- Commutative Regular Shuffle Closed Languages, Noetherian Property, and Learning Theory.- Matching Trace Patterns with Regular Policies.- Absolute Convergence of Rational Series Is Semi-decidable.- Non-solvable Groups Are Not in FO+MOD+MÂJ2[REG].- Reoptimization of Traveling Salesperson Problems: Changing Single Edge-Weights.- Refinement and Consistency of Timed Modal Specifications.- Nondeterministic Instance Complexity and Proof Systems with Advice.- How Many Holes Can an Unbordered Partial Word Contain?.- An Answer to a Conjecture on Overlaps in Partial Words Using Periodicity Algorithms.- Partial Projection of Sets Represented by Finite Automata, with Application to State-Space Visualization.- Larger Lower Bounds on the OBDD Complexity of Integer Multiplication.- Picture Languages Generated by Assembling Tiles.- Undecidability of Operation Problems for T0L Languages and Subclasses.- Decision Problems for Convex Languages.- On a Family of Morphic Images of Arnoux-Rauzy Words.- Monadic Datalog Tree Transducers.- On Extended Regular Expressions.- Multi-tilde Operators and Their Glushkov Automata.- Non-uniform Cellular Automata.- A Cryptosystem Based on the Composition of Reversible Cellular Automata.- Grammars Controlled by Special Petri Nets.- Nested Counters in Bit-Parallel String Matching.- Bounded Delay andConcurrency for Earliest Query Answering.- Learning by Erasing in Dynamic Epistemic Logic.- The Fault Tolerance of NP-Hard Problems.- Termination of Priority Rewriting.- State Complexity of Combined Operations for Prefix-Free Regular Languages.- Towards a Taxonomy for ECFG and RRPG Parsing.- Counting Parameterized Border Arrays for a Binary Alphabet.- Bounded Hairpin Completion.- Rigid Tree Automata.- Converting Self-verifying Automata into Deterministic Automata.- Two Equivalent Regularizations for Tree Adjoining Grammars.- Self-overlapping Occurrences and Knuth-Morris-Pratt Algorithm for Weighted Matching.- Membership Testing: Removing Extra Stacks from Multi-stack Pushdown Automata.- Automata on Gauss Words.- Analysing Complexity in Classes of Unary Automatic Structures.- An Application of Generalized Complexity Spaces to Denotational Semantics via the Domain of Words.- Segmentation Charts for Czech – Relations among Segments in Complex Sentences.- A Note on the Generative Power of Some Simple Variants of Context-Free Grammars Regulated by Context Conditions.- Efficiency of the Symmetry Bias in Grammar Acquisition.- A Series of Run-Rich Strings.- On Accepting Networks of Evolutionary Processors with at Most Two Types of Nodes.- The Halting Problem and Undecidability of Document Generation under Access Control for Tree Updates.- Prediction of Creole Emergence in Spatial Language Dynamics.- On the Average Size of Glushkov’s Automata.- Tiling the Plane with a Fixed Number of Polyominoes.- New Morphic Characterizations of Languages in Chomsky Hierarchy Using Insertion and Locality.- On Parallel Communicating Grammar Systems and Correctness Preserving Restarting Automata.- Finitely Generated Synchronizing Automata.- Genetic Algorithm for Synchronization.-Constructing Infinite Words of Intermediate Arithmetical Complexity.- From Gene Trees to Species Trees through a Supertree Approach.- A Kleene Theorem for Forest Languages.- Determinization and Expressiveness of Integer Reset Timed Automata with Silent Transitions.- One-Clock Deterministic Timed Automata Are Efficiently Identifiable in the Limit.