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normal basis
(algebra, field theory) For a given Galois field 𝔽_(qᵐ) and a suitable element β, a basis that has the form {β, β^q, β^(q2), ... , β^(qm-1)}.
normal forces
plural of normal force
normal fault
(geology) A type of fault in which the footwall moves up relative to the hanging wall.
normal faults
plural of normal fault
normal extension
(algebra) A finite, algebraic extension of some field such that if it contains any root of any irreducible polynomial over that base field then it contains all of the roots of that polynomial.
Covid normal
A lifestyle similar to that before the advent of COVID-19, but where some precautions such as social distancing, hand sanitising, contact tracing protocols, etc., will be in place to help prevent future outbreaks.
normal profit
Normal profit refers to the revenue required for a firm to stay within a market in the long-run.
surface normal
(differential geometry) A unit vector at any given point P of a surface M which is perpendicular to the tangent plane T_P(M) of M at P. For a surface with parametrization ⃑x(u,v), it is given by
normal time
(sports) The standard period of play, contrasted with any additional periods such as injury time, extra time or penalty shootout.
normal subgroup
(group theory) A subgroup H of a group G that is invariant under conjugation; that is, for all elements h of H and for all elements g in G, the element ghg⁻¹ is in H.
