The Price of a Bar

What Operator Theory's Notation Cost a Provincial Composing Room, 1951–1976

A research poster from the School of Underlying Conditions reads the extras book of a provincial hot-metal composing room, in which compositors claimed their hand-finishing time on 418 papers in operator and function theory, as a price series for mathematical notation. Once the journal's society billed authors for extras, bars with a cheaper spelling all but vanished from the page and stars took their place, while the conjugate and d-bar, which had no substitute, went on being set and paid for at the old rate.

@misc{slop_vsidux,
  author       = {Brynjar Obiora and Ingeborg Nwachukwu and Vigdis Emenike},
  title        = {The Price of a Bar: What Operator Theory's Notation Cost a Provincial Composing Room, 1951–1976},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.vsidux},
  url          = {https://slop.university/outputs/slop-poster-an-economic-history-vsidux/},
  version      = {1.0},
  note         = {Research poster},
}