This book constitutes revised selected papers from the 7th Conference on Theory of Quantum Computation, Communication, and Cryptography, TQC 2012, held in Tokyo, Japan, in May 2012. The 12 papers presented were carefully reviewed and selected for inclusion in this book. They contain original research on the rapidly growing, interdisciplinary field of quantum computation, communication and cryptography. Topics addressed are such as quantum algorithms, quantum computation models, quantum complexity theory, simulation of quantum systems, quantum programming languages, quantum cryptography, quantum communication, quantum estimation, quantum measurement, quantum tomography, completely positive maps, decoherence, quantum noise, quantum coding theory, fault-tolerant quantum computing, entanglement theory, and quantum teleportation.

This volume gives the proceedings of ISAAC '92, the Third International Symposium on Algorithms and Computation, held in Nagoya, Japan, December 1992. The first symposium was held in Tokyo in 1990, as the first international symposium organized by SIGAL (Special Interest Groupon Algorithms in the Information Processing Society of Japan) to serve as anannual international forum in Asia for researchers in the area of algorithms. The second symposium was held in Taipei, Taiwan in 1991, where it was decided that computation would be included in the main scope of the symposium and that ISAAC would be its name. ISAAC '92 focuses on topics in design and analysis of algorithms, computational complexity, and theory of computation, including algorithms and data structures, parallel/distributed computing, automata and formal languages, probabilistic/approximation algorithms, computability and complexity, term rewriting systems, and computational geometry. The volume contains the accepted contributed papers and the invited papers.

The two-volume set LNCS 9134 and LNCS 9135 constitutes the refereed proceedings of the 42nd International Colloquium on Automata, Languages and Programming, ICALP 2015, held in Kyoto, Japan, in July 2015. The 143 revised full papers presented were carefully reviewed and selected from 507 submissions. The papers are organized in the following three tracks: algorithms, complexity, and games; logic, semantics, automata, and theory of programming; and foundations of networked computation: models, algorithms, and information management.

The two-volume set LNCS 9134 and LNCS 9135 constitutes the refereed proceedings of the 42nd International Colloquium on Automata, Languages and Programming, ICALP 2015, held in Kyoto, Japan, in July 2015. The 143 revised full papers presented were carefully reviewed and selected from 507 submissions. The papers are organized in the following three tracks: algorithms, complexity, and games; logic, semantics, automata and theory of programming; and foundations of networked computation: models, algorithms and information management.