In combinatorics, a difference set is a subset of a group such that the order of is, the size of is, and every nonidentity element of can be expressed as a product of elements of in exactly ways.
Read more about Difference Set: Basic Facts, Multipliers, Parameters, Known Difference Sets, Application, Generalisations
Famous quotes containing the words difference and/or set:
“The difference between tragedy and comedy is the difference between experience and intuition. In the experience we strive against every condition of our animal life: against death, against the frustration of ambition, against the instability of human love. In the intuition we trust the arduous eccentricities were born to, and see the oddness of a creature who has never got acclimatized to being created.”
—Christopher Fry (b. 1907)
“One does not set fire to a world which is already lost.”
—Friedrich Dürrenmatt (19211990)