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E-raamat: Numerical Geometry, Grid Generation and Scientific Computing: Proceedings of the 10th International Conference, NUMGRID 2020 / Delaunay 130, Celebrating the 130th Anniversary of Boris Delaunay, Moscow, Russia, November 2020

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The focus of these conference proceedings is on research, development, and applications in the fields of numerical geometry, scientific computing and numerical simulation, particularly in mesh generation and related problems. In addition, this years special focus is on Delaunay triangulations and their applications, celebrating the 130th birthday of Boris Delaunay.







In terms of content, the book strikes a balance between engineering algorithms and mathematical foundations. It presents an overview of recent advances in numerical geometry, grid generation and adaptation in terms of mathematical foundations, algorithm and software development and applications.





The specific topics covered include: quasi-conformal and quasi-isometric mappings, hyperelastic deformations, multidimensional generalisations of the equidistribution principle, discrete differential geometry, spatial and metric encodings, Voronoi-Delaunay theory for tilings and partitions, duality in mathematical programming and numerical geometry, mesh-based optimisation and optimal control methods. Further aspects examined include iterative solvers for variational problems and algorithm and software development. The applications of the methods discussed are multidisciplinary and include problems from mathematics, physics, biology, chemistry, material science, and engineering.
Part I Delaunay-Voronoi Theory and Applications.- Local Groups in Delone
Sets.- Manifolds of Triangulations, Braid Groups of Manifolds, and the Groups
k/n.- A Proof of the Invariant-Based Formula for the Linking Number and its
Asymptotic Behaviour.- The Singularity Set of Optimal Transportation Maps.-
Polygonal and Polyhedral Delaunay Meshing.- On Decomposition of Embedded
Prismatoids in R3 without Additional Points.- Out-of-core Constrained
Delaunay Tetrahedralizations for Large Scenes.- Part II Adaptive Meshing.-
Size Gradation Control for Anisotropic Hybrid Meshes.- Adjoint Computation on
Anisotropic Meshes in High-fidelity RANS Simulations.- Moving Deforming Mesh
Generation Based on the Quasi-isometric Functional.- Adaptive Grids for
Non-monotone Waves and Instabilities in a Non-equilibrium PDE Model.-
RBF-VerBSS Hybrid Method for Mesh Deformation.- A Uniform Convergence
Analysis for a Bakhvalov-type Mesh with an Explicitly Defined Transition
Point.- On a Comprehensive Grid for Solving Problems Having Exponential or
PowerofFirstType Layers.- Preserved Structure Constants for Red
Refinements of Product Elements.- Part III Meshing and CAD.- Global
Parametrization Based on Ginzburg-Landau Functional.- Parametrization of
Plane Irregular Regions: A Semi-automatic Approach I.- A Hybrid Approach to
Fast Indirect Quadrilateral Mesh Generation.- Hexahedral Mesh Generation
Using Voxel Field Recovery.- Generation of Boundary Layer Meshes by the
Enhanced Jump-and-Walk Method with a Fast Collision Detecting Algorithm.-
Part IV Numerical Geometry and Applications.- An Improved Algorithm for
Scattered Data Interpolation using Quartic Triangular Bézier Surfaces.- On
Integral-based (Transfinite) Laplace Coordinates.- Part V Numerical Methods.-
Fully-implicit Collocated Finite-Volume Method for the Unsteady
Incompressible NavierStokes Problem.- Efficient Steady Flow Computations
with Exponential Multigrid Methods.- Exponential TimeIntegrators for Unsteady
Advectiondiffusion Problems on Refined Meshes.