Table of Contents

The Art of Reaching the Age of Sixty.- Calude as Father of One of the Computer Science Journals.- Random Semicomputable Reals Revisited.- Constructing the In mum of Two Projections.- Bounded Randomness.- A Note on Blum Static Complexity Measures.- A Program-Size Complexity Measure for Mathematical Problems and Conjectures.- On Degrees of Randomness and Genetic Randomness.- Hartmanis-Stearns Conjecture on Real Time and Transcendence.- Learning Families of Closed Sets in Matroids.- Invariance and Universality of Complexity.- Demuth's Path to Randomness (extended abstract).- Correcting Codes.- Some Transfinite Generalisations of Gödel's Incompleteness Theorem.- Phase Transition between Unidirectionality and Bidirectionality.- Computer Runtimes and the Length of Proofs.- Symmetry ofInformation: A Closer Look.- How Much Information Can There Be in a Real Number?.- Mathematics, Metaphysics and the Multiverse.- Exponential Decay in Quantum Mechanics.- Randomness Increases Order in Biological Evolution.- Haunted Quantum Contextuality Versus Value Indefiniteness.- Outerplanar Graphs and Delaunay Triangulations.- Representing Reaction Systems by Trees.- Derivatives of Regular Expressions and An Application.- Triangular and Hexagonal Tile Self-Assembly Systems.- dP Automata versus Right-Linear Simple Matrix Grammars.- State Complexity of Kleene-Star Operations on Trees.- Composition Sequences and Synchronizing Automata.- On the Connected Partition Dimension of a Wheel Related Graph.