Riemannian manifolds, particularly those with positive or nonnegative curvature, are constructed from only a handful by means of metric fibrations or deformations thereof. This text documents some of these constructions, many of which have only appeared in journal form. The emphasis is less on the fibration itself and more on how to use it to either construct or understand a metric with curvature of fixed sign on a given space.
The outline of the aeolian and adhesion morphodynamics and phytoecology in recent coastal and inland sand and snow flats and dunes includes examples from the North Sea coast (Netherlands, Germany and Denmark), Baltic Sea coast (Germany, Poland, Russia and Lithuania), snow flats on ice plates covering frozen inland lakes (Germany), Great Sand Dunes aeolian dune field and Medano Creek sand flat (Colorado/USA), Red River sand flat (Texas and Oklahoma/USA); and Mars, Venus, Titan, Triton and other bodies in the solar system of planets and satellites. The actual geological, geomorphological and physical geographical study of modern dune fields and fluvial or marine sand flats permits also the comparative palaeoenvironmental interpretation of ancient dune fields and sand flats in fluvial basins in Buntsandstein (Lower Triassic), Rotliegend (Lower Permian) and Keuper (Upper Triassic). Lists of References, Key Words and Illustrations. More than 10,000 References.
Riemannian manifolds, particularly those with positive or nonnegative curvature, are constructed from only a handful by means of metric fibrations or deformations thereof. This text documents some of these constructions, many of which have only appeared in journal form. The emphasis is less on the fibration itself and more on how to use it to either construct or understand a metric with curvature of fixed sign on a given space.
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