411 REFERENCE · Wiktionary
Riemannian
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From en Riemann ian.
Adjective
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en mathematics Of or relating to the work, or theory developed from the work, of German mathematician Bernhard Riemann, especially to Riemannian manifolds and Riemannian geometry.
2003, Maung Min-Oo, The Dirac Operator in Geometry and Physics, Steen Markvorsen, Maung Min-Oo (editors), Global Riemannian Geometry: Curvature and Topology, Springer, page 62,
Similarly, is represented by the closed differential form
where is the Riemannian curvature of the metric , regarded as an -valued two form, and is the Pfaffian, which is an invariant polynomial defined on the Lie algebra of skew symmetric matrices in even dimensions.
en 2010 Charles P. Boyer; Krzysztof Galicki Chapter 3: Sasakian geometry, holonomy, and supersymmetry Vicente Cortés Handbook of Pseudo-Riemannian Geometry and Supersymmetry w:European Mathematical Society https://books.google.com.au/books?id=AL56H5pF3akC&pg=PA41&dq=%22Riemannian%22&hl=en&sa=X&ved=0ahUKEwi6mKyL0ObdAhWVM94KHY1SCRAQ6AEIngMwPw#v=onepage&q=%22Riemannian%22&f=false 41 As the preferred metrics applied to symplectic forms are Kähler metrics one could ask for the Riemannian structure which would make the cone with the metric together with the symplectic form into a Kähler manifold. Then and define a complex structure . Alternatively, one could ask for a Riemannian metric on which would define a Kähler metric on via a Riemannian submersion.
2012, Yves Carriere, Appendix A: Variations on Riemannian Flows, Pierre Molino, Riemannian Foliations, Springer, page 217,
The object of this appendix is to give a summary of known results on 1-dimensional oriented Riemannian Foliations.
en music Relating to the musical theories of German theorist Hugo Riemann, particularly his theory of harmony, which is characterised by a system of "harmonic dualism".
en 1994 Daniel Harrison Harmonic Function in Chromatic Music: A Renewed Dualist Theory and an Account of Its Precedents https://books.google.com.au/books?id=_SyNx1vr-AkC&printsec=frontcover&dq=%22Riemannian%22+music&hl=en&sa=X&ved=0ahUKEwjQ6pTKoefdAhXQa94KHc7hA20Q6AEIfTAP#v=onepage&q=%22Riemannian%22%20music&f=false 7 w:University of Chicago Press And not only theory: most central European composers of this century were schooled in Riemannian doctrine of one type or another.
en 2004 Jairo Moreno Musical Representations, Subjects, and Objects: The Construction of Musical Thought in Zarlino, Descartes, Rameau, and Weber https://books.google.com.au/books?id=J8uc2Slbq20C&pg=PA1&dq=%22Riemannian%22+music&hl=en&sa=X&ved=0ahUKEwjQ6pTKoefdAhXQa94KHc7hA20Q6AEIxgMwSQ#v=onepage&q=%22Riemannian%22%20music&f=false 1 w:Indiana University Press Or take, for example, the rehabilitation by late-twentieth-century North American theorists of Riemannian Tonnetze as a means to navigate the voice-leading intricacies of much chromatic and post-chromatic music.
en 2009 Marek Žabka Generalized Tonnetz and Well-Formed GTS: A Scale Theory Inspired by the Neo-Riemannians Elaine Chew; Adrian Childs; Ching-Hua Chuan Mathematics and Computation in Music, 2nd International Conference, Proceedings Springer https://books.google.com.au/books?id=1C_gIK3PWTUC&pg=PA286&dq=%22Riemannian%22+music&hl=en&sa=X&ved=0ahUKEwjQ6pTKoefdAhXQa94KHc7hA20Q6AEIYjAK#v=onepage&q=%22Riemannian%22%20music&f=false 286 The paper connects two notions originating from different branches of the recent mathematical music theory: the neo-Riemannian Tonnetz and the property of well-formedness from the theory of the generated scales.
Derived terms
en neo-Riemannian
en pseudo-Riemannian
en Riemannian geometry
en Riemannian manifold
Translations
French: fr riemannien
Italian: it riemanniano
Polish: pl riemannowski
Noun
en mathematics One who uses or supports the work of German mathematician Bernhard Riemann.
Translations
French: fr riemannien m, fr riemannienne f
Polish: pl zwolennik Riemanna m, pl zwolenniczka Riemanna f
See also
en Riemann
en Riemann integral
Further reading
mathematics
Bernhard Riemann
Riemannian geometry
Riemannian manifold
music
Riemannian theory
Neo-Riemannian theory
Tonnetz
en eponyms
en Non-Euclidean geometry