This volume explores the formal language theory as the nexus of Mathematics, Computer Science, Linguistics, and Biology. It presents a collection of papers that delve into classical topics within computer science-inspired formal languages, alongside new concepts and problems motivated by linguistics and biology. The papers are organized into four distinct sections: Grammars and Grammar Systems, Automata, Languages and Combinatorics, and Models of Molecular Computing. These contributions collectively demonstrate the current power, richness, and vitality of the field, while also outlining potential future directions.

This collection is intended for computer scientists, computational linguists, theoretical biologists, and anyone interested in interdisciplinary challenges. The papers within the volume aim to showcase the current state and future trends of formal language theory. The organization into distinct sections suggests a structured approach to complex, interconnected topics. The overall scope indicates a focus on theoretical advancements and their applications across multiple scientific domains.