for operator convenience
11LSZ reduction formula — In quantum field theory, the LSZ reduction formula is a method to calculate S matrix elements (the scattering amplitudes) from the time ordered correlation functions of a quantum field theory. It is a step of the path that starts from the… …
12Advertising — This article is about the form of communication. For other uses, see Advertiser (disambiguation). Advert redirects here. For the band featuring musician Gaye Advert, see The Adverts. For content guidelines on the use of advertising in Wikipedia… …
13Linear differential equation — In mathematics, a linear differential equation is a differential equation of the form: Ly = f ,where the differential operator L is a linear operator, y is the unknown function, and the right hand side fnof; is a given function (called the source …
14Manila Light Rail Transit System — Overview Type …
15Spice Nepal — Private Ltd. (SNPL) stands as a privately owned GSM mobile operator in Nepal and is the first company to operate private GSM services in telecommunications sector of Nepal with the brand name “MERO MOBILE”. It broke the monopoly held by the state …
16Ncell — A SIM card from Ncell Ncell Private Ltd. stands as a privately owned GSM mobile operator in Nepal and is the first company to operate private GSM services in telecommunications sector of Nepal with the brand name “MERO MOBILE” which was rebranded …
17Postcodes in the United Kingdom — The postal codes used in the United Kingdom are known as postcodes.[1] They are alphanumeric and were introduced by the Royal Mail over a 15 year period from 11th October 1959 to 1974.[2] A full postcode is known as a postcode unit and usually… …
18Taipei bus — Infobox Bus transit name = Taipei Joint Bus System logo size = image size = image caption = Ikarus low floor bus operated by Metropolitan Transit Company company slogan = parent = founded = 1977 headquarters = locale = Taiwan, Taipei service area …
19Digital video testing — in broadcast video, for example, is the process of validating and verifying that the video content and other data is being correctly processed, stored and transported. Despite the fact that the data is digital, most digital tv (DTV) system… …
20Central vacuum cleaner — The power unit of a typical central vacuum cleaner for residential use A central vacuum cleaner (also known as built in or ducted) is a type of vacuum cleaner appliance, installed into a building as a semi permanent fixture. Central vacuum… …
