Domain wall

A domain wall is a type of topological soliton that occurs whenever a discrete symmetry is spontaneously broken. Domain walls also sometimes called kinks in analogy with closely related kink solution of the sine-Gordon model. Unstable domain walls can also appear if spontaneously broken discrete symmetry is approximate and there is the metastable vacuum.

A domain (hyper volume) is extended in three spatial dimensions and one time dimension. A domain wall is the boundary between two neighboring domains. Thus a domain wall is extended in two spatial dimensions and one time dimension.

Important examples are:

Besides these important cases similar solitons appear in wide spectrum of the models. Here are other examples:

Domain (band)

Domain is a German power metal band.

History

1986–1992

Domain first impressed fans of melodic metal back in the 1980s with their first works, "Lost In The City" (still under the old band name Kingdom), "Before The Storm" and "Crack in The Wall", as well as with their hit songs such as 'Lost In The City' and ‚ 'I Don’t Wanna Die'. Single "Heart Of Stone was a title song of german mini-serial "Bastard".

2000–2006

But it was their next albums, "One Million Lightyears From Home" (2001), "The Artefact" (2002) and "The Sixth Dimension" (2003) as well as a successful tour with the rock legends, Glenn Hughes and Joe Lynn Turner (HTP) that secured the quintet a place in the European Melodic Metal scene. With a harder edged sound, Domain still had a good following. And that was when the career of the guitarist Axel "Ironfinger" Ritt (Grave Digger), ex-vocalist Carsten Lizard Schulz (Evidence One et al.), and the long-term band mates keyboarder Erdmann Lange, ex-bass player Jochen Mayer (Boysvoice, Demon Drive, Casanova) and the ex-drummer Stefan Köllner really began…

Domain of a function

In mathematics, and more specifically in naive set theory, the domain of definition (or simply the domain) of a function is the set of "input" or argument values for which the function is defined. That is, the function provides an "output" or value for each member of the domain. Conversely, the set of values the function takes on as output is termed the image of the function, which is sometimes also referred to as the range of the function.

For instance, the domain of cosine is the set of all real numbers, while the domain of the square root consists only of numbers greater than or equal to 0 (ignoring complex numbers in both cases). When the domain of a function is a subset of the real numbers, and the function is represented in an xy Cartesian coordinate system, the domain is represented on the x-axis.

Formal definition

Given a function f:X→Y, the set X is the domain of f; the set Y is the codomain of f. In the expression f(x), x is the argument and f(x) is the value. One can think of an argument as an input to the function, and the value as the output.

Calling (Lose My Mind)

"Calling (Lose My Mind)" is a single by Swedish house producers Sebastian Ingrosso (of Swedish House Mafia) and Alesso featuring American recording artist Ryan Tedder of the band OneRepublic. It was released in Sweden on March 13, 2012 and in the UK on May 27, 2012. Canadian recording artist Matthew Koma assisted the artists in writing the song. The original instrumental version of the track was released on August 31, 2011, under the name "Calling". The song topped the Billboard Hot Dance Club Songs chart and was also a top-ten hit in Australia and the UK. It was featured on Swedish House Mafia's second compilation album Until Now, released on October 22, 2012.

Chart performance

Charts

Year-end charts

Certifications

External links

References

Calling (Taproot song)

"Calling" is the first single released from Taproot's third studio album Blue-Sky Research. Like most of the songs on the album, it is significantly less heavy than their previous singles, and shows more of a standard alternative rock/post-grunge approach.

Music video

The song's music video was directed by Moh Azima.

Charts

Personnel

References

Calling (B'z song)

Calling is the twenty-second single by B'z, released on July 9, 1997. This song is one of B'z many number-one singles in Oricon chart. The song was used as a theme of TV drama Glass Mask, an adoption of shōjo manga. It sold 1,000,020 copies according to Oricon.

Track listing

References

External links