This book constitutes the refereed proceedings of the 14th Annual Symposium on Theoretical Aspects of Computer Science, STACS 97, held in Lübeck, Germany, in February/March 1997.The 46 revised full papers included were carefully selected from a total of 139 submissions;

Unifying models.- Predecessor queries in dynamic integer sets.- Semi-dynamic shortest paths and breadth-first search in digraphs.- Greibach normal form transformation, revisited.- Translating regular expressions into small ?-free nondeterministic finite automata.- Memory management for Union-Find algorithms.- Fast online multiplication of real numbers.- The operators min and max on the polynomial hierarchy.- Resource-bounded kolmogorov complexity revisited.- Las Vegas versus determinism for one-way communication complexity, finite automata, and polynomial-time computations.- Interactive proof systems with public coin: Lower space bounds and hierarchies of complexity classes.- MODp-tests, almost independence and small probability spaces.- Hybrid diagrams: A deductive-algorithmic approach to hybrid system verification.- Temporal logics for the specification of performance and reliability.- Efficient scaling-invariant checking of timed bisimulation.- Gossiping and broadcasting versus computing functions in networks.- On the descriptive and algorithmic power of parity ordered binary decision diagrams.- A reducibility concept for problems defined in terms of ordered binary decision diagrams.- On the classification of computable languages.- A conditional-logical approach to minimum cross-entropy.- Undecidability results on two-variable logics.- Methods and applications of (max,+) linear algebra.- Regular expressions and context-free grammars for picture languages.- Measuring nondeterminism in pushdown automata.- On polynomially D verbose sets.- A downward translation in the polynomial hierarchy.- Strict sequential P-completeness.- An unambiguous class possessing a complete set.- Deadlock-free interval routing schemes.- Power consumption in packet radio networks.- Thecomplexity of generating test instances.- Efficient constructions of Hitting Sets for systems of linear functions.- Protocols for collusion-secure asymmetric fingerprinting.- Minimal transition systems for history-preserving bisimulation.- On ergodic linear cellular automata over Zm.- Intrinsic universality of a 1-dimensional reversible Cellular Automaton.- The computational complexity of some problems of linear algebra.- Algebraic and logical characterizations of deterministic linear time classes.- Finding the k shortest paths in parallel.- Sequential and parallel algorithms on compactly represented chordal and strongly chordal graphs.- Distance approximating spanning trees.- A better upper bound on the bisection width of de Bruijn networks.- An information-theoretic treatment of random-self-reducibility.- Equivalence of measures of complexity classes.- Better algorithms for minimum weight vertex-connectivity problems.- RNC-approximation algorithms for the steiner problem.- Pattern matching in trace monoids.- Removing ?-transitions in timed automata.- Probabilistic proof systems — A survey.