Diclib.com
Wörterbuch ChatGPT

Wörterbuchsuche Kundenspezifische Lösungen

Geben Sie ein Wort oder eine Phrase in einer beliebigen Sprache ein 👆

Sprache:

Übersetzung und Analyse von Wörtern durch künstliche Intelligenz ChatGPT

Auf dieser Seite erhalten Sie eine detaillierte Analyse eines Wortes oder einer Phrase mithilfe der besten heute verfügbaren Technologie der künstlichen Intelligenz:

wie das Wort verwendet wird
Häufigkeit der Nutzung
es wird häufiger in mündlicher oder schriftlicher Rede verwendet
Wortübersetzungsoptionen
Anwendungsbeispiele (mehrere Phrasen mit Übersetzung)
Etymologie

Was (wer) ist null tetrad - definition

IRREDUCIBLE NODAL SURFACE

Kummer's surface; Rosenheim tetrad; Gopel tetrad; Göpel tetrad

Construction of a complex null tetrad

PAIR OF REAL NULL VECTORS AND A PAIR OF COMPLEX NULL VECTORS

Wikipedia talk:Articles for creation/Construction of a complex null tetrad

Calculations in the Newman–Penrose (NP) formalism of general relativity normally begin with the construction of a complex null tetrad \{l^a,n^a,m^a,\bar{m}^a\}, where \{l^a,n^a\} is a pair of real null vectors and \{m^a,\bar{m}^a\} is a pair of complex null vectors. These tetrad vectors respect the following normalization and metric conditions assuming the spacetime signature (-,+,+,+):

https://en.wikipedia.org/wiki/Construction_of_a_complex_null_tetrad

Null allele

NONFUNCTIONAL ALLELE (A VARIANT OF A GENE) CAUSED BY A GENETIC MUTATION

Null mutation; Null Allele; Null alleles; Null mutant

A null allele is a nonfunctional allele (a variant of a gene) caused by a genetic mutation. Such mutations can cause a complete lack of production of the associated gene product or a product that does not function properly; in either case, the allele may be considered nonfunctional.

https://en.wikipedia.org/wiki/Null_allele

Null (SQL)

SPECIAL MARKER AND KEYWORD IN SQL INDICATING THAT SOMETHING HAS NO VALUE

Sql null; NULL (SQL); NVL; NULLIF; SQL CASE; Sql case; Codd tables; Codd table; COALESCE; C-table; Uncertain database; NULL marks; Null (database)

In SQL, null or NULL is a special marker used to indicate that a data value does not exist in the database. Introduced by the creator of the relational database model, E.

https://en.wikipedia.org/wiki/Null_(SQL)

Wikipedia

Kummer surface

In algebraic geometry, a Kummer quartic surface, first studied by Ernst Kummer (1864), is an irreducible nodal surface of degree 4 in $\mathbb {P} ^{3}$ with the maximal possible number of 16 double points. Any such surface is the Kummer variety of the Jacobian variety of a smooth hyperelliptic curve of genus 2; i.e. a quotient of the Jacobian by the Kummer involution x ↦ −x. The Kummer involution has 16 fixed points: the 16 2-torsion point of the Jacobian, and they are the 16 singular points of the quartic surface. Resolving the 16 double points of the quotient of a (possibly nonalgebraic) torus by the Kummer involution gives a K3 surface with 16 disjoint rational curves; these K3 surfaces are also sometimes called Kummer surfaces.

Other surfaces closely related to Kummer surfaces include Weddle surfaces, wave surfaces, and tetrahedroids.

https://en.wikipedia.org/wiki/Kummer surface