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The range of issues considered in graph drawing includes algorithms, graph theory, geometry, topology, order theory, graphic languages, perception, app- cations, and practical systems. Much research is motivated by applications to systems for viewing and interacting with graphs. The interaction between th- retical advances and implemented solutions is an important part of the graph drawing eld. The annually organized graph drawing symposium is a forum for researchers, practitioners, developers, and users working on all aspects of graph visualization and representations. The preceding symposia were held in M- treal (GD’98), Rome (GD’97), Berkeley (GD’96), Passau (GD’95), Princeton (GD’94), and Paris (GD’93). The Seventh International Symposium on Graph Drawing GD’99 was or- nized at Sti r n Castle, in the vicinity of Prague, Czech Republic. This baroque castle recently restored as a hotel and conference center provided a secluded place for the participants, who made good use of the working atmosphere of the conference. In total the symposium had 83 registered participants from 16 countries.

Computer graphics --- Graph theory --- Technology - General --- Engineering & Applied Sciences --- Computer science. --- Algorithms. --- Computer science --- Computer graphics. --- Application software. --- Combinatorics. --- Computer Science. --- Computer Applications. --- Computer Graphics. --- Discrete Mathematics in Computer Science. --- Algorithm Analysis and Problem Complexity. --- Mathematics. --- Computational complexity. --- Computer software. --- Combinatorics --- Algebra --- Mathematical analysis --- Software, Computer --- Computer systems --- Complexity, Computational --- Electronic data processing --- Machine theory --- Automatic drafting --- Graphic data processing --- Graphics, Computer --- Computer art --- Graphic arts --- Engineering graphics --- Image processing --- Informatics --- Science --- Digital techniques --- Computer science—Mathematics. --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Computer software --- Algorism --- Arithmetic --- Foundations

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The idea for this book was conceived over the second bottle of Villa Maria's Caber­ net Medot '89, at the dinner of the Australasian Combinatorics Conference held at Palmerston North, New Zealand in December 1990, where the authors first met and discovered they had a number of interests in common. Initially, we embarked on a small project to try to formulate reductions to address the apparent parame­ terized intractability of DOMINATING SET, and to introduce a structure in which to frame our answers. Having spent several months trying to get the definitions for the reductions right (they now seem so obvious), we turned to our tattered copies of Garey and Johnson's work [239]. We were stunned to find that virtually none of the classical reductions worked in the parameterized setting. We then wondered if we'd be able to find any interesting reductions. Several years, many more bottles, so many papers, and reductions later it [3] seemed that we had unwittingly stumbled upon what we believe is a truly central and new area of complexity theory. It seemed to us that the material would be of great interest to people working in areas where exact algorithms for a small range of parameters are natural and useful (e. g. , Molecular Biology, VLSI design). The tractability theory was rich with distinctive and powerful techniques. The intractability theory seemed to have a deep structure and techniques all of its own.

Computer science --- Computational complexity. --- Complexité de calcul (Informatique) --- 511.3 --- Analytical, additive and other number-theory problems. Diophantine approximations --- 511.3 Analytical, additive and other number-theory problems. Diophantine approximations --- Complexité de calcul (Informatique) --- Computational complexity --- Complexity, Computational --- Electronic data processing --- Machine theory --- Computers. --- Mathematical logic. --- Applied mathematics. --- Engineering mathematics. --- Combinatorics. --- Algorithms. --- Theory of Computation. --- Mathematical Logic and Foundations. --- Applications of Mathematics. --- Algorithm Analysis and Problem Complexity. --- Algorism --- Algebra --- Arithmetic --- Combinatorics --- Mathematical analysis --- Engineering --- Engineering analysis --- Algebra of logic --- Logic, Universal --- Mathematical logic --- Symbolic and mathematical logic --- Symbolic logic --- Mathematics --- Algebra, Abstract --- Metamathematics --- Set theory --- Syllogism --- Automatic computers --- Automatic data processors --- Computer hardware --- Computing machines (Computers) --- Electronic brains --- Electronic calculating-machines --- Electronic computers --- Hardware, Computer --- Computer systems --- Cybernetics --- Calculators --- Cyberspace --- Foundations

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This book constitutes the refereed proceedings of the 7th International Conference on High-Performance Computing and Networking, HPCN Europe 1999, held in Amsterdam, The Netherlands in April 1999. The 115 revised full papers presented were carefully selected from a total of close to 200 conference submissions as well as from submissions for various topical workshops. Also included are 40 selected poster presentations. The conference papers are organized in three tracks: end-user applications of HPCN, computational science, and computer science; additionally there are six sections corresponding to topical workshops.

Computer Science --- Engineering & Applied Sciences --- Computer science. --- Computer communication systems. --- Software engineering. --- Computers. --- Algorithms. --- Computer science --- Computer mathematics. --- Computer Science. --- Software Engineering/Programming and Operating Systems. --- Computer Communication Networks. --- Theory of Computation. --- Mathematics of Computing. --- Algorithm Analysis and Problem Complexity. --- Computational Mathematics and Numerical Analysis. --- Mathematics. --- High performance computing --- Congresses --- Computer networks --- Information theory. --- Computer software. --- Software, Computer --- Computer systems --- Communication theory --- Communication --- Cybernetics --- Computer mathematics --- Discrete mathematics --- Electronic data processing --- Computer software engineering --- Engineering --- Informatics --- Science --- Mathematics --- Computer science—Mathematics. --- Algorism --- Algebra --- Arithmetic --- Automatic computers --- Automatic data processors --- Computer hardware --- Computing machines (Computers) --- Electronic brains --- Electronic calculating-machines --- Electronic computers --- Hardware, Computer --- Machine theory --- Calculators --- Cyberspace --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Network computers --- Foundations --- Distributed processing --- Computer networks.

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Computers --- Ordinateurs --- Access control --- Passwords --- Congresses --- Accès --- Contrôle --- Mots de passe --- Congrès --- Computer Science --- Engineering & Applied Sciences --- Accès --- Contrôle --- Congrès --- Computer science. --- Computer programming. --- Data encryption (Computer science). --- Coding theory. --- Algorithms. --- Management information systems. --- Computer Science. --- Data Encryption. --- Programming Techniques. --- Algorithm Analysis and Problem Complexity. --- Coding and Information Theory. --- Management of Computing and Information Systems. --- Computer software. --- Information Systems. --- Cryptology. --- Software, Computer --- Computer systems --- Informatics --- Science --- Data encoding (Computer science) --- Encryption of data (Computer science) --- Computer security --- Cryptography --- Data compression (Telecommunication) --- Digital electronics --- Information theory --- Machine theory --- Signal theory (Telecommunication) --- Computer programming --- Algorism --- Algebra --- Arithmetic --- Foundations --- Information theory. --- Electronic computer programming --- Electronic data processing --- Electronic digital computers --- Programming (Electronic computers) --- Coding theory --- Computer-based information systems --- EIS (Information systems) --- Executive information systems --- MIS (Information systems) --- Sociotechnical systems --- Information resources management --- Management --- Communication theory --- Communication --- Cybernetics --- Programming --- Communication systems --- Contrôle. --- Contrôle.

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Cryptography --- Data encryption (Computer science) --- Cryptographie --- Chiffrement (Informatique) --- Congresses --- Congrès --- Computer science. --- Computer communication systems. --- Data encryption (Computer science). --- Algorithms. --- Computer science --- Computer mathematics. --- Computer Science. --- Data Encryption. --- Discrete Mathematics in Computer Science. --- Algorithm Analysis and Problem Complexity. --- Computer Communication Networks. --- Computational Mathematics and Numerical Analysis. --- Mathematics. --- Computer security --- Congrès --- Computational complexity. --- Computer software. --- Cryptology. --- Computer mathematics --- Discrete mathematics --- Electronic data processing --- Software, Computer --- Computer systems --- Complexity, Computational --- Machine theory --- Data encoding (Computer science) --- Encryption of data (Computer science) --- Mathematics --- Computer science—Mathematics. --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Network computers --- Algorism --- Algebra --- Arithmetic --- Distributed processing --- Foundations --- Computer networks. --- Informatics --- Science --- Cryptography - Congresses --- Data encryption (Computer science) - Congresses