The Mathematical Association of America's journals have also published more than a dozen problems whose solutions were submitted in the name of Orno.
This affiliation is confirmed in the description of Orno as a "special creation" at Ohio State in Pietsch's History of Banach spaces and linear operators.
[5] The publications list of Ohio State mathematician Gerald Edgar includes two items that were published under the name of Orno.
[8] Peter Orno has published in research journals and in collections; his papers have always been short, having lengths between one and three pages.
Other pseudonymous mathematicians active in the 20th century include Nicolas Bourbaki, John Rainwater, M. G. Stanley, and H. C. Enos.