semi-norm

短语

词形变化

semi-norms 复数 semi-norms

别名

seminorm

释义与例句

n.
  1. 1.

    A function denoted ∥v∥ that maps a vector v to a non-negative value such that ∥cv∥ = |c|.∥v∥, where c is a scalar, and ∥v + w∥ ≤ ∥v∥ + ∥w∥ (the triangle inequality); the condition that ∥v∥ = 0 implies that v = 0 is not required, but when it holds, the semi-norm is a norm.

    数学

词源

From semi- + norm.

来源：wiktionary