Cross Notation, Group
See also: multiplicative group of integers modulo nIf n≥1 and is an integer, the numbers coprime to n, taken modulo n, form a group with multiplication as operation; it is written as (Z/nZ)× or Zn*.
Read more about this topic: Coprime Integers
Famous quotes containing the words cross and/or group:
“Expecting me to grovel,
she carefully covers both feet
with the hem of her skirt.
She pretends to hide
a coming smile
and won’t look straight at me.
When I talk to her,
she chats with her friend
in cross tones.
Even this slim girl’s rising anger
delights me,
let alone her deep love.”
—Amaru (c. seventh century A.D.)
“Belonging to a group can provide the child with a variety of resources that an individual friendship often cannot—a sense of collective participation, experience with organizational roles, and group support in the enterprise of growing up. Groups also pose for the child some of the most acute problems of social life—of inclusion and exclusion, conformity and independence.”
—Zick Rubin (20th century)