Thomas Ransford

Last updated
Thomas Joseph Ransford
BornNovember 1958
Residence Flag of Canada.svg Quebec City, Canada
NationalityFlag of the United Kingdom.svg  United Kingdom
CitizenshipFlag of the United Kingdom.svg  United Kingdom
Flag of Canada.svg Canada
Alma mater Trinity College, University of Cambridge
Spouse(s)Line Baribeau
ChildrenÉtienne Ransford and Julian Ransford
Scientific career
Fields Banach algebras
Potential Theory
Institutions Université Laval
Thesis Analytic Multivalued Functions (1984)
Doctoral advisor Graham Allan

Thomas Ransford Ph.D. Sc.D (born 1958) is a British-born Canadian mathematician, known for his research in spectral theory and complex analysis. He holds a Canada Research Chair in mathematics at Université Laval. [1]

Doctor of Philosophy Postgraduate academic degree awarded by universities in many countries

A Doctor of Philosophy is the highest university degree that is conferred after a course of study by universities in most countries. PhDs are awarded for programs across the whole breadth of academic fields. As an earned research degree, those studying for a PhD are usually required to produce original research that expands the boundaries of knowledge, normally in the form of a thesis or dissertation, and defend their work against experts in the field. The completion of a PhD is often a requirement for employment as a university professor, researcher, or scientist in many fields. Individuals who have earned a Doctor of Philosophy degree may, in many jurisdictions, use the title Doctor or, in non-English-speaking countries, variants such as "Dr. phil." with their name, although the proper etiquette associated with this usage may also be subject to the professional ethics of their own scholarly field, culture, or society. Those who teach at universities or work in academic, educational, or research fields are usually addressed by this title "professionally and socially in a salutation or conversation." Alternatively, holders may use post-nominal letters such as "Ph.D.", "PhD", or "DPhil". It is, however, considered incorrect to use both the title and post-nominals at the same time.

Doctor of Science, usually abbreviated Sc.D., D.Sc., S.D., or D.S., is an academic research degree awarded in a number of countries throughout the world. In some countries, "Doctor of Science" is the title used for the standard doctorate in the sciences; elsewhere the Sc.D. is a "higher doctorate" awarded in recognition of a substantial and sustained contribution to scientific knowledge beyond that required for a Doctor of Philosophy (PhD). It may also be awarded as an honorary degree.

Ransford earned his Ph.D. from the University of Cambridge in 1984. [2]


He was a fellow of the Trinity College, University of Cambridge, from 1983 to 1987. [3] [4]

University of Cambridge university in Cambridge, United Kingdom

The University of Cambridge is a collegiate public research university in Cambridge, United Kingdom. Founded in 1209 and granted a royal charter by King Henry III in 1231, Cambridge is the second-oldest university in the English-speaking world and the world's fourth-oldest surviving university. The university grew out of an association of scholars who left the University of Oxford after a dispute with the townspeople. The two 'ancient universities' share many common features and are often referred to jointly as 'Oxbridge'. The academic standards, history, influence and wealth of the University of Cambridge has made it one of the most prestigious universities in the world.

In addition to over 90 research papers on mathematics, he has written a research monograph "Potential Theory in the Complex Plane" in 1995.

He has proved results on potential theory, functional analysis, the theory of capacity, and probability. For example, with Javad Mashreghi he proved the Mashreghi–Ransford inequality. He also derived a short elementary proof of Stone–Weierstrass theorem .

Related Research Articles


  1. "Chairholders".
  2. "The Mathematics Genealogy Project – Thomas Ransford".
  3. "Past Fellows". Archived from the original on 2014-10-07.
  4. "Université Laval – Une petite démonstration de mathématiques pures!". Le Devoir.