Hans-Volker Niemeier

Last updated

Hans-Volker Niemeier is a German mathematician who in 1973 classified the Niemeier lattices, the even positive definite unimodular lattices in 24 dimensions.

Related Research Articles

<span class="mw-page-title-main">Valentin Tomberg</span> Estonian-Russian Christian mystic, polyglot scholar and hermetic magician

Valentin Tomberg was an Estonian-Russian Christian mystic, polyglot scholar and hermetic magician.

In mathematics, the Leech lattice is an even unimodular lattice Λ24 in 24-dimensional Euclidean space, which is one of the best models for the kissing number problem. It was discovered by John Leech (1967). It may also have been discovered by Ernst Witt in 1940.

24 (twenty-four) is the natural number following 23 and preceding 25.

23 (twenty-three) is the natural number following 22 and preceding 24.

Niemeyer, Niemeier, or Niemeijer is a surname. Notable people with the surname include:

In geometry and mathematical group theory, a unimodular lattice is an integral lattice of determinant 1 or −1. For a lattice in n-dimensional Euclidean space, this is equivalent to requiring that the volume of any fundamental domain for the lattice be 1.

In mathematics, a Niemeier lattice is one of the 24 positive definite even unimodular lattices of rank 24, which were classified by Hans-Volker Niemeier (1973). Venkov (1978) gave a simplified proof of the classification. In the 1970s, Witt (1941) has a sentence mentioning that he found more than 10 such lattices in the 1940s, but gives no further details. One example of a Niemeier lattice is the Leech lattice found in 1967.

In mathematics, the E8 lattice is a special lattice in R8. It can be characterized as the unique positive-definite, even, unimodular lattice of rank 8. The name derives from the fact that it is the root lattice of the E8 root system.

<span class="mw-page-title-main">Richard A. Parker</span>

Richard A. Parker (born 29 January 1953, in Surrey) is a mathematician and freelance computer programmer in Cambridge, England. He invented many of the algorithms for computing the modular character tables of finite simple groups. He discovered the relation between Niemeier lattices and deep holes of the Leech lattice, and constructed Parker's Moufang loop of order 213 (which was used by John Horton Conway in his construction of the monster group).

<span class="mw-page-title-main">USC Heidelberg</span> Professional basketball team in Heidelberg, Germany

USC Heidelberg, for sponsorship reasons named MLP Academics Heidelberg, is a professional basketball club from Heidelberg, Baden-Württemberg, Germany. The club's men's senior team currently plays in the German first division Basketball Bundesliga since its promotion in 2021. The team has won thirteen German championships in its history, the last being in 1977.

In mathematics, II25,1 is the even 26-dimensional Lorentzian unimodular lattice. It has several unusual properties, arising from Conway's discovery that it has a norm zero Weyl vector. In particular it is closely related to the Leech lattice Λ, and has the Conway group Co1 at the top of its automorphism group.

In mathematics, umbral moonshine is a mysterious connection between Niemeier lattices and Ramanujan's mock theta functions. It is a generalization of the Mathieu moonshine phenomenon connecting representations of the Mathieu group M24 with K3 surfaces.

Fantasia for Strings is a composition by German composer Hans Werner Henze. It was finished in 1966, as part of the soundtrack for Volker Schlöndorff's film adaptation of Robert Musil's novel The Confusions of Young Törless. This composition has been published by Schott Music.

<span class="mw-page-title-main">Joscha Schmierer</span> German politician and writer

Hans-Gerhart "Joscha" Schmierer is a German politician and author.

<span class="mw-page-title-main">Eberhard Freitag</span> German mathematician

Eberhard Freitag is a German mathematician, specializing in complex analysis and especially modular forms.

<span class="mw-page-title-main">Jule Niemeier</span> German tennis player

Jule Niemeier is a German professional tennis player. She has a career-high WTA singles ranking of world No. 61, achieved on 7 November 2022.

Events in the year 2020 in Germany.

"Herr, wir bringen in Brot und Wein" is a Christian offertory hymn with German text by Hans Bernhard Meyer, and a melody by Peter Janssens. The song, of the genre Neues Geistliches Lied (NGL), is part of German hymnals, including Gotteslob, and songbooks.

The 2022 WTA German Open was a professional tennis tournament played on outdoor grass courts at the Rot-Weiss Tennis Club in Berlin, Germany from 13 June to 19 June 2022. It was the 95th edition of the event on the 2022 WTA Tour, the second year it has been organized on grass, and was classified as a WTA 500 tournament.

The 2022 Bad Homburg Open was a women's professional tennis tournament played on outdoor grass courts at the TC Bad Homburg in Bad Homburg, Germany, from 19 June to 25 June 2022. It was the second edition of the Bad Homburg Open and was classified as a WTA 250 event on the 2022 WTA Tour.

References