Lida Baker Kittrell Barrett (May 21, 1927 – January 28, 2021) was an American mathematics professor and administrator. She served on many committees and boards and contributed to mathematics, mathematics education, and increasing the participation of members of underrepresented groups in mathematics. She served as president of the Mathematical Association of America (MAA) in 1989 and 1990.
Gaetano Pietra (10 August 1879, in Castiglione delle Stiviere, Italy – 1961, in Villanova dello Iudrio, Udine, Italy) was an Italian statistician.
Oskar Perron (7 May 1880 – 22 February 1975) was a German mathematician.
He was a professor at the University of Heidelberg from 1914 to 1922 and at the University of Munich from 1922 to 1951. He made numerous contributions to differential equations and partial differential equations, including the Perron method to solve the Dirichlet problem for elliptic partial differential equations. He wrote an encyclopedic book on continued fractions Die Lehre von den Kettenbrüchen. He introduced Perron's paradox to illustrate the danger of assuming that the solution of an optimization problem exists:
Let N be the largest positive integer. If N > 1, then N2 > N, contradicting the definition of N. Hence N = 1.
Piergiorgio Odifreddi (born 13 July 1950, in Cuneo) is an Italian mathematician, logician, student of the history of science, and popular science writer and essayist, especially on philosophical atheism as a member of the Italian Union of Rationalist Atheists and Agnostics. He is philosophically and politically near to Bertrand Russell and Noam Chomsky.
Beppo Levi (14 May 1875 – 28 August 1961) was an Italian mathematician. He published high-level academic articles and books, not only on mathematics, but also on physics, history, philosophy, and pedagogy. Levi was a member of the Bologna Academy of Sciences and of the Accademia dei Lincei.
Thomas Murray MacRobert (4 April 1884, in Dreghorn, Ayrshire – 1 November 1962, in Glasgow) was a Scottish mathematician. He became professor of mathematics at the University of Glasgow and introduced the MacRobert E function, a generalisation of the generalised hypergeometric series.
Ernest Jean Philippe Fauque de Jonquières (born Carpentras, France 3 July 1820; died Mousans-Sartoux, France 12 August 1901) was a French mathematician and naval officer who made several contributions in geometry.
Jonquières attended the naval school at Brest, and later joined the French Navy. in 1841 he became a lieutenant, and from 1849 to 1850 he served on the staff of the Admiral in Paris. During this time, Jonquières became a close associate of Michel Chasles, whose works he had studied. During his subsequent time at sea, he continued his mathematical studies, and won a part of the Grand Prix of the French Academy of Sciences in 1862.
In 1865, Jonquières became a captain and was sent to Saigon to organize a French agricultural and industrial exhibition. He played an important role in the development of current Vietnam as a French colony. Later, he was head of the local naval depot and its maps and plans. In 1874, Jonquières was made Vice-Admiral. He retired in 1885.
Max Jakob (July 20, 1879 – January 4, 1955) was a German physicist known for his work in the field of thermal science.
Born in Ludwigshafen, Germany, Jakob studied engineering at Technical University Munich, from which he graduated in 1903. From 1903 to 1906, he was an assistant to O. Knoblauch at the Laboratory for Technical Physics. In 1910, Jakob embarked on a 25-year career at the Physikalisch-Technische Reichsanstalt in Charlottenburg, Berlin. During this time he founded and directed applied thermodynamics, heat transfer, and fluid flow laboratories.Fleeing Nazi persecution, Jakob left Germany in 1936 and immigrated to the United States, where he became a professor at Armour Institute of Technology (now Illinois Institute of Technology) and a consultant in heat transfer for Armour Research Foundation. There he conducted research, covering areas such as steam and air at high pressure, devices for measuring thermal conductivity, the mechanisms of boiling and condensation, and flow in pipes and nozzles.His many years of teaching, consulting, and writing resulted in contributions to the literature of the profession; nearly 500 books, articles, reviews and discussions have been published based on his research. He has published a number of books in thermal sciences including Elements of Heat Transfer and Insulation (1942) and Heat Transfer (1956).
He is credited with devising the Jakob dimensionless number, aka Jakob number, which is used in phase change heat transfer calculations:
J
a
=
c
p
,
f
(
T
w
−
T
s
a
t
)
h
f
g
{\displaystyle Ja={\frac {c_{p,f}(T_{w}-T_{sat})}{h_{fg}}}}
The Max Jakob Memorial Award, the highest honor in the field of heat transfer, was established in 1961 by the American Society of Mechanical Engineers (ASME) Heat Transfer Division in honor of Jakob.
