double group

double group

[¦dəb·əl ′grüp]
(quantum mechanics)
A type of group useful in studying systems of half-integral spin; it is formed by modifying a finite point group by introducing an element which is a rotation through an angle of 2π about an arbitrary axis and which is not the unit element but gives the unit element when applied twice.
References in periodicals archive ?
Bowman has a couple of topclass Australian horses following him to Britain in the shape of the Waterhouse-trained Bentley Biscuit, whom he will ride at Royal Ascot, and Mutawaajid, a double Group 2 winner whom Channon is to train.
We've got to give weight away all round, but there aren't too many other double Group 1 winners in the field.
A double Group 1 winner at a mile and a quarter this year and a leading contender for the Breeders' Cup Turf, over a mile and a half, he will now
Olden Times and Dandoun - among the 15 Newbury entries - also have the double Group 1 declaration, with ground conditions likely to be the deciding factor.
RICHARD HILLS enjoyed double Group 1 success with Summoner and Mutamam last weekend, but the jockey would gain just as much pleasure should Albarahin finally make the leap up to Group-race winner at Longchamp today.
On Saturday the owner of Lanwades Stud enjoyed a Champion Stakes reprise with her home-bred filly, the brave and brilliant Alborada, and on Sunday her stallion Selkirk completed a double Group 1 celebration with Field Of Hope's victory in the Prix de la Fort.
nStrategic Choice, a double Group 1 winner, holds strong claims on his best form but he failed to strike last year.
The accommodation building includes 93 residential units for students than double group homes with sanitary facilities, the associated kitchens, community and cleaner rooms, washing machine and drying rooms and bike storage in the basement as well as all functional areas necessary for building the prosecution.
Elio Leoni Sceti, head of Iglo, yesterday announced an aim to double group sales to PS2.
Elio Leoni Sceti, head of Iglo, announced an aim to double group sales to PS2.
The lender, which has operations in the Middle East, Asia and Africa, aims to nearly double group assets and income by 2017 and is considering the introduction of an Africa-specific brand to support this effort.
A double Group 3 winner with a 100 per cent record over 1m4f and a liking for soft going, Sapphire beat Shirocco Star and Dancing Rain so emphatically that Weld put into words what had been in his thoughts for a while.