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  3. Lectures on Lagrangian Torus Fibrations
  • Cited by 9
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    • Publisher:
      Cambridge University Press
      Publication date:
      July 2023
      July 2023
      ISBN:
      9781009372671
      9781009372626
      9781009372633
      DOI:
      https://doi.org/10.1017/9781009372671
      Dimensions:
      (229 x 152 mm)
      Weight & Pages:
      0.49kg, 240 Pages
      Dimensions:
      (229 x 152 mm)
      Weight & Pages:
      0.36kg, 240 Pages
      • Subjects:
      Mathematics (general), Mathematics, Differential and Integral Equations, Dynamical Systems and Control Theory, Geometry and Topology
      Series:
      London Mathematical Society Student Texts (105)
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    Subjects:
    Mathematics (general), Mathematics, Differential and Integral Equations, Dynamical Systems and Control Theory, Geometry and Topology
    Series:
    London Mathematical Society Student Texts (105)
    Information

    Book description

    Symington's almost toric fibrations have played a central role in symplectic geometry over the past decade, from Vianna's discovery of exotic Lagrangian tori to recent work on Fibonacci staircases. Four-dimensional spaces are of relevance in Hamiltonian dynamics, algebraic geometry, and mathematical string theory, and these fibrations encode the geometry of a symplectic 4-manifold in a simple 2-dimensional diagram. This text is a guide to interpreting these diagrams, aimed at graduate students and researchers in geometry and topology. First the theory is developed, and then studied in many examples, including fillings of lens spaces, resolutions of cusp singularities, non-toric blow-ups, and Vianna tori. In addition to the many examples, students will appreciate the exercises with full solutions throughout the text. The appendices explore select topics in more depth, including tropical Lagrangians and Markov triples, with a final appendix listing open problems. Prerequisites include familiarity with algebraic topology and differential geometry.

    Reviews

    ‘Lagrangian torus fibrations are an interesting source of examples in symplectic geometry, since their symplectic features are encoded by the geometry of certain half-dimensional base diagrams. Enriched by many pictures and exercises with solutions, this book provides an accessible and well-written introduction to this topic, which is of interest to a broad audience through its connections with integrable systems and algebraic geometry. This work will be appreciated by students and experts alike, since it fills a crucial gap in the literature by giving an excellent discussion of almost toric fibrations, which have attracted a lot of attention in recent years.’

    Felix Schlenk - Université de Neuchatel

    ‘This is a lucid and engaging introduction to the fascinating world of (almost) toric geometry, in which one can understand the properties of Lagrangian and symplectic submanifolds in four dimensions simply by drawing suitable two-dimensional diagrams. The book has many illustrations and intricate examples.’

    Dusa McDuff - Barnard College, Columbia University

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