In group theory, a branch of mathematics, a string group is an infinite-dimensional group String(n) introduced by Stolz (1996) as a 3-connected cover of a spin group. A string manifold is a manifold with a lifting of its frame bundle to a string group bundle.

There is a short exact sequence of topological groups

where K(Z, 2) is an Eilenberg–MacLane space and Spin(n) is a spin group.

A

Linzi Stoppard (born 1979 in Surrey) is a violinist from United Kingdom.

Linzi Stoppard started taking violin lessons at the age of four. She grew up in Surrey, and was trained under the Suzuki method.

At the age of eighteen, Linzi Stoppard signed her first modeling contract, while still teaching and playing session violin. As of 2010^[update] is currently signed to Models 1.

At nineteen, she was spotted by the music producers Oliver Adams and Praga Khan during a violin session. This resulted in her fronting Tattoo of Pain, an American heavy metal group. Linzi Stoppard then formed a duo called Babe Instinct, for which she provided the vocals. Later, she went back to electric violin and gave several performances.

In June 2004, she married Will Stoppard, son of Tom Stoppard and Dr. Miriam Stoppard. In 2006, the director Stephen L'Heureux offered her a cameo role in his next film, after he saw her performing at the Cannes Film Festival. In October 2006, Albert II, Prince of Monaco asked her — through a lackey — to play for him at a private dinner, after he saw her performing at a party.

Benjamin Michael "Ben" Lee (born 11 September 1978 in Sydney) is an ARIA Award winning musician and actor. Lee began his career as a musician at the age of 14 with the Sydney band Noise Addict, but focused on his solo career when the band broke up in 1995. He appeared as the protagonist in the Australian film The Rage in Placid Lake (2003). Lee has released eight solo studio albums.

Lee's musical career began in 1993 with the band Noise Addict, who were signed to Steve Pavlovic's independent label Fellaheen Records, on the strength of a self-produced and distributed four-track demo recorded in Lee's bedroom. Pavlovic's connections brought the band to the attention of Sonic Youth's Thurston Moore and Beastie Boys' Mike D, both of whom released the band's material in the US. The group put out several releases on the Beasties' Grand Royal Records. These including the acoustic Young and Jaded EP in 1994, which contained Lee's Evan Dando tribute, "I Wish I Was Him." In 1995, Grand Royal released the band's only full length, the Brad Wood produced Meet the Real You. Noise Addict made a music video for the song "16", toured with Sebadoh, but then broke up. Lee was also briefly a member of the alternative act Gerling. In 2009 Lee recorded a new Noise Addict album, "It was Never about the Audience," with a new lineup; Lou Barlow and Lara Meyerratken.

Karl William Pamp Jenkins, CBE (born 17 February 1944) is a Welsh musician and composer.

Jenkins was born and raised in the Gower village of Penclawdd, in the county of Swansea, South Wales. His father, who was a local schoolteacher, chapel organist and choirmaster, gave him his initial musical instruction. Karl Jenkins attended Gowerton Grammar School.

Jenkins began his musical career as an oboist in the National Youth Orchestra of Wales. He went on to study music at Cardiff University, and then commenced postgraduate studies in London at the Royal Academy of Music, where he also met his wife and musical collaborator, Carol Barratt. He studied with Alun Hoddinott.

For the bulk of his early career Jenkins was known as a jazz and jazz-rock musician, playing baritone and soprano saxophones, keyboards and oboe, an unusual instrument in a jazz context. He joined jazz composer Graham Collier's group and later co-founded the jazz-rock group Nucleus, which won first prize at the Montreux Jazz Festival in 1970.

Mike Stern (born Mike Sedgwick on January 10, 1953) is an American jazz guitarist. After playing for a few years with Blood, Sweat & Tears, he landed a gig with drummer Billy Cobham and then broke through with trumpeter Miles Davis' comeback band from 1981 to 1983, and again in 1985. Following that he launched a solo career, releasing more than a dozen albums. He was hailed as the Best Jazz Guitarist of 1993 by Guitar Player magazine, and in 2009 was listed on Down Beat's list of 75 best jazz guitar players.

Stern was born Mike Sedgwick in Boston, Massachusetts, the son of Helen Burroughs and Henry Dwight Sedgwick V. He is the half-brother of actress Kyra Sedgwick; his full sister, Holly, is the mother of actor Philip Nozuka and singers George Nozuka, Justin Nozuka, and Henry Nozuka. Stern is married to guitarist and vocalist Leni Stern.

At the Berklee College of Music in Boston his focus shifted to jazz. Stern landed a gig with Blood, Sweat & Tears in 1976 and remained with the band for two years, appearing on the BS&T albums More Than Ever and Brand New Day.