-
linear algebra, a
Hessenberg matrix is a
special kind of
square matrix, one that is "almost" triangular. To be exact, an
upper Hessenberg matrix has zero...
-
Hessenberg may
refer to: People:
Gerhard Hessenberg (1874–1925),
German mathematician Karl
Hessenberg (1904–1959),
German mathematician and
engineer Kurt...
- triangular. An
upper Hessenberg matrix is a
square matrix for
which all
entries below the
subdiagonal are zero. A
lower Hessenberg matrix is one for which...
- left, but for the
Hessenberg case they are
multiplied on both left and right.)
Determining the QR
decomposition of an
upper Hessenberg matrix costs 6 n...
-
plane in
which Pappus's
theorem is
universally true is
called Pappian.
Hessenberg (1905)
showed that Desargues's
theorem can be
deduced from
three applications...
- In geometry,
Hessenberg varieties,
first studied by
Filippo De Mari,
Claudio Procesi, and Mark A. Shayman, are a
family of
subvarieties of the full flag...
- Karl
Adolf Hessenberg (September 8, 1904 –
February 22, 1959) was a
German mathematician and engineer. The
Hessenberg matrix form is
named after him. From...
-
operations on
ordinals were
defined in 1906 by
Gerhard Hessenberg, and are
sometimes called the
Hessenberg sum (or product) (Sierpiński 1958). The
natural sum...
- = P H P ∗ {\displaystyle A=PHP^{*}}
where H {\displaystyle H} is the
Hessenberg matrix and P {\displaystyle P} is a
unitary matrix. Comment:
often the...
-
Gerhard Hessenberg (German: [ˈgɛʁ.hart ˈhɛsənˌbɛrk]; 16
August 1874 – 16
November 1925) was a
German mathematician who
worked in
projective geometry, differential...
