normaloid

English

Etymology

normal +‎ -oid

Adjective

normaloid (not comparable)

1. (mathematics) Of a bounded linear operator, having a norm equal to its spectral radius.
   • 2015, Aref Jeribi, editor, Applied Mathematics in Tunisia, page 10:

     A bounded linear operator $T\in L(X)$, defined on a complex infinite dimensional Banach space $X$, is said to be normaloid if $\|T\|=r(T),r(T)$ the spectral radius of $T$.

   • 2015, Mahsa Fatehi, Mahmood Haji Shaabani, “Normal, cohyponormal and normaloid weighted composition operators on the Hardy and weighted Bergman spaces”, in arXiv‎^[1]:

     In this paper, we study normal, cohyponormal, hyponormal and normaloid weighted composition operators on the Hardy and weighted Bergman spaces.

Noun

normaloid (plural normaloids)

1. (mathematics) A bounded linear operator having a norm equal to its spectral radius.
2. (slang) A boringly conventional or conformist person; a normie.
   • 1982, Paul Barker, The Other Britain, page 58:

     It became fashionable again, for a time, to say you were an anarchist, to spit in the face of the normaloids.

   • 2011, Bruce L. Gary, Genetic Enslavement, page 1:

     If you are like that clueless 99% of humans, those I call “normaloids,” then let me suggest that you abandon this book and resume your pathetic, unthinking life!