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Konferenzen zum Thema Graphentheorie und Kombinatorik in den Vereinigten Staaten (USA)

Conference-Service.com stellt der Öffentlichkeit ein Kalendarium wichtiger Konferenzen, Symposien und sonstiger Tagungen im wissenschaftlich-technischen Bereich zur Verfügung. Obwohl das Verzeichnis mit großer Sorgfalt zusammengestellt und ständig aktualisiert wird, weisen wir auf die Möglichkeit von Fehlern ausdrücklich hin. Bitte vergewissern Sie sich immer beim Veranstalter, bevor Sie über die Teilnahme oder Nichtteilnahme an einer Konferenz entscheiden.

Organisatoren können kostenlos ihre Konferenzankündigungen veröffentlichen.

1.IWOCA 2014 — International Workshop on Combinatorial Algorithms
 Termin 15. Okt 2014 → 17. Okt 2014
[ID=621961] Zum Seitenanfang gehen
 OrtDuluth, Minnesota, Vereinigte Staaten
 Zusammenfassung IWOCA 2014 continues the long and well-established tradition of encouraging high-quality research in theoretical computer science and bringing together specialists and young researchers working in the area. The scientific program will include invited lectures covering the areas of main interest, accepted contributed talks, posters, and a problems session.
 Themen Algorithms and Data Structures, Applications (including Bioinformatics, Networking, etc.), Combinatorial Enumeration, Combinatorial Optimization, Complexity Theory (Structural and Computational), Computational Biology, Databases (Security, Compression and Information Retrieval), Decompositions and Combinatorial Designs, Discrete and Computational Geometry (including Graph Drawing), Graph Theory and Combinatorics
 Webseite http://mcs.uwsuper.edu/iwoca2014/
  
2.Yamabe Memorial Symposium 2014: Current Topics in the Geometry of 3-Manifolds
 Termin 17. Okt 2014 → 19. Okt 2014
[ID=615901] Zum Seitenanfang gehen
 OrtMinneapolis, Minnesota, Vereinigte Staaten
 Webseite http://math.umn.edu/yamabe/2014/
  
3.28th Midwest Conference on Combinatorics and Combinatorial Computing
 Termin 22. Okt 2014 → 24. Okt 2014
[ID=610401] Zum Seitenanfang gehen
 OrtUniversity of Nevada, Las Vegas, Vereinigte Staaten
 Zusammenfassung The Midwest Conferences on Combinatorics and Combinatorial Computing (MCCCC) are of small size (50 to 70 participants) and have been growing slowly. Papers cover a spectrum of pure and applied combinatorics, including graph theory, design theory, enumeration, and combinatorial computing. For 28th MCCCC, the invited speakers are: Brian Alspach; Saad El-Zanati; Futaba Fujie-Okamoto; Joseph Gallian; Margaret Readdy; Ian Wanless. Contributed papers (15-20 minutes talks) are very welcomed.
 Webseite http://www.mcccc.info
  
4.AIM Workshop — Combinatorics and complexity of Kronecker coefficients
 Termin 03. Nov 2014 → 07. Nov 2014
[ID=611267] Zum Seitenanfang gehen
 OrtPalo Alto, CA, Vereinigte Staaten
 Veranstalter American Institute of Mathematics
 Zusammenfassung This workshop, sponsored by AIM and the NSF, will be devoted to the study of Kronecker coefficients which describe the decomposition of tensor products of irreducible representations of a symmetric group into irreducible representations. We concentrate on their combinatorial interpretation, computational aspects and applications to other fields.
 Webseite http://aimath.org/workshops/upcoming/
 Verwandte Fachgebiete Algebra; Gruppentheorie
  
5.ANALCO15 — Analytic Algorithmics and Combinatorics
 Beginn04. Jan 2015
[ID=597351] Zum Seitenanfang gehen
 OrtSan Diego, Kalifornien, Vereinigte Staaten
 Veranstalter Society for Industrial and Applied Mathematics (SIAM)
 Webseite http://www.siam.org/meetings/analco15/
 Verwandte Fachgebiete Angewandte Mathematik (allgem.); Algorithmen
  
6.ICERM Semester Program: Phase Transitions and Emergent Properties
 Termin 02. Feb 2015 → 08. Mai 2015
[ID=592186] Zum Seitenanfang gehen
 OrtProvidence, Vereinigte Staaten
 Zusammenfassung Emergent phenomena are properties of a system of many components which are only evident or even meaningful for the collection as a whole. A typical example is a system of many molecules, whose bulk properties may change from those of a fluid to those of a solid in response to changes in temperature or pressure. The basic mathematical tool for understanding emergent phenomena is the variational principle, most often employed via entropy maximization. The difficulty of analyzing emergent phenomena, however, makes empirical work essential; computations generate conjectures and their results are often our best judge of the truth.

The semester will include three workshops that will concentrate on di fferent aspects of current interest, including unusual settings such as complex networks and quasicrystals, the onset of emergence as small systems grow, and the emergence of structure and shape as limits in probabilistic models. The workshops will (necessarily) bring in researchers in combinatorics and probability as well as statistical physics and related areas. We aim to have experimental contributors for workshops 1 and 2 where we will highlight the comparison between computational and theoretical modeling and the real world. This will be combined with computational modules for the student participants.

 Webseite http://icerm.brown.edu/sp-s15
 Verwandte Fachgebiete Kurse und Veranstaltungen für Studenten der Mathematik
  
7.ICERM Workshop: Crystals, Quasicrystals and Random Networks
 Termin 09. Feb 2015 → 13. Feb 2015
[ID=592163] Zum Seitenanfang gehen
 OrtProvidence, Vereinigte Staaten
 Zusammenfassung The prototypical emergent phenomena are the bulk 'phases' of large collections of molecules, such as the fluid and solid phases. The solid phase is understood to emerge from an energy minimizing ideal crystal by the addition of random defects as energy increases from its minimum, the crucial/amazing fact being that the phase preserves something from the ideal crystal that unambiguously distinguishes it from the fluid phase. In this workshop we will focus on two significant variants of this classic picture: quasicrystals, and complex networks/random graphs. The analogue of energy minimizing crystals for quasicrystals are aperiodic tilings, such as the kite and dart tilings of Penrose, and for complex networks the analogue of energy minimizing crystals are (multi-partite) extremal graphs, graphs which minimize the number of subgraphs of some type. The workshop will focus on extremal graphs and aperiodic tilings and on the 'solid' phases they are believed to yield when random defects are introduced. It is hoped that progress can be made by pooling the expertise of researchers interested in the various aspects of these subjects.
 Webseite http://icerm.brown.edu/sp-s15-w1
 Verwandte Fachgebiete Angewandte Mathematik: Komplexe Netzwerke
  
8.ICERM Workshop: Small Clusters, Polymer Vesicles and Unusual Minima
 Termin 16. Mär 2015 → 20. Mär 2015
[ID=592217] Zum Seitenanfang gehen
 OrtProvidence, Vereinigte Staaten
 Zusammenfassung This workshop will explore emergent phenomena in the context of small clusters, supramolecular self-assembly and the shape of self-assembled structures such as polymer vesicles. The emphasis will be on surprises which arise when common conditions are not satisfied, for instance when the number of components is small, or they are highly non-spherical, or there are several types of components. Interactions vary from hard sphere repulsion to competition between coarse-grained liquid-crystalline ordering competing with shape deformation. Examples of this behavior are common in materials such as bulk homopolymers (rubber), copolymers, liquid crystals and colloidal aggregates. A basic mathematical setting would be to consider small clusters of hard spheres with isotropic short-range attractions and study the shape of the clusters as a function of the number of components. One known surprise is that highly symmetric structures are suppressed by rotational entropy. This emphasizes the need to accurately count the number of particle configurations that lead to the same final state. Small clusters can also generate anisotropic building blocks which can in turn serve as nano- or meso-scale building blocks for supermolecules and bulk materials (supramolecular chemistry) freed from the limited scope of atoms and quantum-mechanical bonding. These structures frequently possess topological defects in their ground states because they lower the energy. The challenge is to determine the shape and equilibrium defect structure of such superatoms and the number and geometry of their arrangement. The number of defects determines the effective valence of the super atoms and the global geometry of their arrangement determines the types of directional bonding possible when defects are linked together. The phenomenon of the appearance of singularities/defects because they are minimizers not necessarily required by topology or boundary conditions is also encountered in the study of harmonic maps. Moving up to self-assembly of large numbers of units, block copolymers self-assemble into a wide variety of structures including vesicles, nano-fibers and tori. Many of the structures formed are essentially two-dimensional surfaces embedded in R3. The mathematical challenge is to find both the shape and the order of the assembled object. This requires minimizing of a functional that depends on both the local and global order of the relevant matter fields and the shape of the surface.
 Webseite http://icerm.brown.edu/sp-s15-w2
  
9.AIM Workshop: Dynamical algebraic combinatorics
 Termin 23. Mär 2015 → 27. Mär 2015
[ID=644253] Zum Seitenanfang gehen
 OrtAmerican Institute of Mathematics, Palo Alto, Vereinigte Staaten
 Zusammenfassung This workshop, sponsored by AIM and the NSF, will focus on dynamical systems arising from algebraic combinatorics.
 Webseite http://aimath.org/workshops/upcoming/dynalgcomb
 Verwandte Fachgebiete Angewandte Mathematik: Dynamische Systeme, Regelung und Automatisierung
  
10.ICERM Workshop: Limit Shapes
 Termin 13. Apr 2015 → 17. Apr 2015
[ID=592227] Zum Seitenanfang gehen
 OrtProvidence, Vereinigte Staaten
 Zusammenfassung Since the days of Boltzmann, it has been well accepted that natural phenomena, when described using tools of statistical mechanics, are governed by various "laws of large numbers." For practitioners of the field this usually means that certain empirical means converge to constants when the limit of a large system is taken. However, evidence has been amassed that such laws apply also to geometric features of these systems and, in particular, to many naturally-defined shapes. Earlier examples where such convergence could be proved include certain interacting particle systems, invasion percolation models and spin systems in equilibrium statistical mechanics.

The last decade has seen a true explosion of "limit-shape" results. New tools of combinatorics, random matrices and representation theory have given us new models for which limit shapes can be determined and further studied: dimer models, polymer models, sorting networks, ASEP (asymmetric exclusion processes), sandpile models, bootstrap percolation models, polynuclear growth models, etc. The goal of the workshop is to attempt to confront this "ZOO" of combinatorial examples with older foundational work and develop a better understanding of the general limit shape phenomenon.

 Webseite http://icerm.brown.edu/sp-s15-w3
  

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Stand vom 05. August 2014