Charles Royal Johnson (born January 28, 1948) is an American mathematician specializing in

linear algebra Linear algebra is the branch of mathematics concerning linear equations such as: :a_1x_1+\cdots +a_nx_n=b, linear maps such as: :(x_1, \ldots, x_n) \mapsto a_1x_1+\cdots +a_nx_n, and their representations in vector spaces and through matrices ...

. He is a Class of 1961 professor of mathematics at

College of William and Mary The College of William & Mary (officially The College of William and Mary in Virginia, abbreviated as William & Mary, W&M) is a public research university in Williamsburg, Virginia. Founded in 1693 by letters patent issued by King William III ...

. The books ''Matrix Analysis'' and ''Topics in Matrix Analysis'', co-written by him with

Roger Horn Roger Alan Horn (born January 19, 1942) is an American mathematician specializing in matrix analysis. He was research professor of mathematics at the University of Utah. He is known for formulating the Bateman–Horn conjecture with Paul T. Bate ...

, are standard texts in advanced linear algebra.

Career

Charles R. Johnson received a B.A. with distinction in Mathematics and Economics from

Northwestern University Northwestern University is a private research university in Evanston, Illinois. Founded in 1851, Northwestern is the oldest chartered university in Illinois and is ranked among the most prestigious academic institutions in the world. Charte ...

in 1969. In 1972, he received a Ph.D. in Mathematics and Economics from the

California Institute of Technology The California Institute of Technology (branded as Caltech or CIT)The university itself only spells its short form as "Caltech"; the institution considers other spellings such a"Cal Tech" and "CalTech" incorrect. The institute is also occasional ...

, where he was advised by Olga Taussky Todd; his dissertation was entitled "Matrices whose Hermitian Part is Positive Definite". Johnson held various professorships over ten years at the

University of Maryland, College Park The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public land-grant research university in College Park, Maryland. Founded in 1856, UMD is the flagship institution of the University System of M ...

starting in 1974. He was a professor at

Clemson University Clemson University () is a public land-grant research university in Clemson, South Carolina. Founded in 1889, Clemson is the second-largest university in the student population in South Carolina. For the fall 2019 semester, the university enr ...

from 1984 to 1987. In 1987, he became a professor of mathematics at the

, where he remains today.

Books

* (1st edition 1985) ** * (1st edition 1991) * * *

as editor

References

External links

*
Charles Royal Johnson Curriculum Vitae
20th-century American mathematicians 21st-century American mathematicians College of William & Mary faculty Northwestern University alumni California Institute of Technology alumni 1948 births Living people Linear algebraists {{US-mathematician-stub