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Raymond L. Johnson

Raymond L. Johnson is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Raymond L. Johnson rather than just read about it. In short: Raymond Lewis Johnson (born 1943) is an American mathematician, currently a professor emeritus at the University of Maryland, College Park and an adjunct professor of mathematics at Rice University. He was the first African-American student at Rice University, and the first African-American mathematics professor at the University of Maryland.

Raymond L. Johnson — main illustration
Raymond L. Johnson — illustration

Key takeaways

  • Raymond L. Johnson belongs to mathematics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Raymond L. Johnson to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Raymond L. Johnson from memory before moving on to harder problems.

Reference excerpt

Raymond Lewis Johnson (born 1943) is an American mathematician, currently a professor emeritus at the University of Maryland, College Park and an adjunct professor of mathematics at Rice University. He was the first African-American student at Rice University, and the first African-American mathematics professor at the University of Maryland. His research concerns non-well-posed problems and harmonic analysis.

Early life and education Johnson was born on 25 June 1943 in Alice, Texas and educated in a small segregated schoolhouse, with children in four different grades in each of its two rooms. Because he had been taught by his grandfather how to read and do arithmetic, he skipped two grades of school. After the 1954 Brown v. Board of Education decision, desegregating public schools, he was allowed to attend the formerly-all-white secondary schools in Alice, beginning in the ninth grade. Shortly afterwards, the Soviet launch of Sputnik in 1957 and the ensuing Space Race led to the development of high school enrichment programs in science and mathematics, in which Johnson participated. Johnson earned a National Merit Scholarship, which he used to attend the University of Texas at Austin. Johnson writes that he "decided to major in math because it was one of the things I had enjoyed most in high school and there was no hope of my really understanding physics." His high school mathematics teacher, Larry O'Rear, had been advised by mathematics professor Howard B. Curtis, and Curtis also became a mentor to Johnson, with much of his mathematical education accomplished through independent study advised by Curtis. Another role model at Texas was Vivienne Malone-Mayes, an African-American graduate student in mathematics and the grader for a linear algebra course taken by Johnson. However, Johnson was advised to avoid the courses of Robert Lee Moore, "the real head of the pure math department", who was famous for his mentorship of young mathematicians but also notorious for his racism. On completing his undergraduate studies, Curtis suggested that Johnson continue as a graduate student at Rice University. Rice's founding charter was to serve only the white citizens of Texas, but the university had determined to break both its racial and its state-based restrictions. Johnson was admitted to Rice in 1963, as its first African-American student, but his admission was delayed until 1964 by a lawsuit against the university by two alumni who did not want this change to happen. Johnson worked at Rice for a year as a research associate before becoming a regular graduate student. He then discovered that he was being paid less than the other graduate students, and almost left again, but continued after obtaining an NSF graduate fellowship. At Rice, Johnson met his future wife, Claudette, then a sociology student at Texas Southern University, through their shared participation in protests during the Civil Rights Movement. He was advised by Jim Douglas, Jr., who moved to the University of Chicago after Johnson's first year of study. Johnson moved with him, but returned to Rice to defend his dissertation on Parabolic partial differential equations in 1969.

Academic career With the help of Douglas, Johnson obtained a position at the University of Maryland, College Park, where he became the first African-American mathematics professor. At Maryland, Johnson remained active in recruiting and retaining African-American students, especially from historically black colleges and universities. He served as a mentor to 23 doctoral students, most of them African-American and many of them female; an administrator at Maryland wrote of his work in this area that "the institutional success of our Department in educating underrepresented minorities has been based on the leadership of Ray Johnson". He remained at Maryland for 40 years (with a two-year interlude at Howard University from 1976 to 1978) until returning to Rice in 2007.

Awards and honors In 1986, the University of Maryland gave Johnson their Distinguished Minority Faculty Award. Johnson was the recipient of the 2006 Mentor Award for Lifetime Achievement of the American Association for the Advancement of Science. In 2015 he won the Presidential Award for Excellence in Science, Mathematics and Engineering Mentoring, given to 14 scholars nationally by the White House Office of Science and Technology Policy. Johnson's work earned him recognition by Mathematically Gifted & Black as a Black History Month 2017 Honoree. Johnson was named a Fellow of the American Mathematical Society, in the 2022 class of fellows, "for contributions to classical harmonic analysis, and for efforts toward increasing the participation of African Americans in mathematics".

References

External links "A Conversation with Raymond L. Johnson". Rice University. December 1, 2020. Retrieved March 5, 2025. "Biography: Raymond L. Johnson". The HistoryMakers. August 17, 2012. Retrieved March 5, 2025.

Illustrations

Raymond L. Johnson illustration

Worked examples

Example 1 — a first encounter with Raymond L. Johnson

Start with the simplest possible case. Write down what Raymond L. Johnson claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Raymond L. Johnson before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Raymond L. Johnson ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Raymond L. Johnson

In research
Raymond L. Johnson appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Raymond L. Johnson in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Raymond L. Johnson is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1943 births, 20th-century African-American academics, 20th-century American academics, so understanding it makes those chapters shorter.
In everyday life
Look for Raymond L. Johnson outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Raymond L. Johnson in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Raymond L. Johnson means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Raymond L. Johnson out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Raymond L. Johnson in simple terms?

Raymond Lewis Johnson (born 1943) is an American mathematician, currently a professor emeritus at the University of Maryland, College Park and an adjunct professor of mathematics at Rice University. He was the first African-American student at Rice University, and the first African-American mathema…

Why does Raymond L. Johnson matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Raymond L. Johnson?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Raymond L. Johnson.

Tags

  • 1943 births
  • 20th-century African-American academics
  • 20th-century American academics
  • 20th-century American mathematicians
  • 21st-century African-American academics
  • 21st-century African-American scientists
  • 21st-century American academics
  • 21st-century American mathematicians
  • Fellows of the American Mathematical Society
  • Living people
  • Rice University alumni
  • Rice University faculty

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