Definition:Norm

Disambiguation

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Norm may refer to:

• Abstract algebra:
  • Norm (Division Ring), a concept similar to the absolute value on $\R$
  • Norm (Vector Space), a concept encompassing the usual norm on $\R^n$

• Analysis:
  • Absolute Value, the well-known absolute value function on the real numbers $\R$
  • Modulus of Complex Number, an example of a norm on a division ring

• Functional analysis:
  • Norm (Linear Transformation), also commonly known as the operator norm
  • Norm (Linear Functional), a useful special case of the above