Periodicity - Periodicity

Periodicity or periodic may refer to:

In mathematics

• Periodic function, a function whose output contains values that repeat periodically
• Periodic mapping
• Bott periodicity, a modulo-8 recurrence relation in the homotopy groups of classical groups

In the physical sciences

• Periodic trends, relative characteristics of chemical elements observed
• Redshift periodicity, astronomical term for redshift quantization

Other uses

• Principle of periodicity, in generally accepted accounting principles
• Fokker periodicity blocks, which mathematically relate musical intervals