John Adrian Bondy
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John Adrian Bondy (born 1944 in London) is a retired English mathematician, known for his work in combinatorics and
graph theory In mathematics, graph theory is the study of ''graphs'', which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of '' vertices'' (also called ''nodes'' or ''points'') which are conn ...
.


Career

Bondy received his Ph.D. in
graph theory In mathematics, graph theory is the study of ''graphs'', which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of '' vertices'' (also called ''nodes'' or ''points'') which are conn ...
from the
University of Oxford , mottoeng = The Lord is my light , established = , endowment = £6.1 billion (including colleges) (2019) , budget = £2.145 billion (2019–20) , chancellor ...
in 1969. His advisor was
Dominic Welsh James Anthony Dominic Welsh (known professionally as D.J.A. Welsh) (born 29 August 1938) Between 1969 and 1994, Bondy was ''Professor of Graph Theory'' at the
University of Waterloo The University of Waterloo (UWaterloo, UW, or Waterloo) is a public research university with a main campus in Waterloo, Ontario, Canada. The main campus is on of land adjacent to "Uptown" Waterloo and Waterloo Park. The university also operates ...
in Canada, and then, until his retirement, at Université Lyon 1 in France. From 1976, he was managing editor, and, between 1979 and 2004, co-editor-in-chief (together with U. S. R. Murty) of Journal of Combinatorial Theory, Series B. Throughout his career, Bondy has (co-)authored over 100 publications with 51 co-authors, including the widely influential textbook ''Graph Theory with Applications'' (with U. S. R. Murty), and supervised 12 Ph.D. students. His
Erdős number The Erdős number () describes the "collaborative distance" between mathematician Paul Erdős and another person, as measured by authorship of mathematical papers. The same principle has been applied in other fields where a particular individual ...
is 1. Bondy was dismissed from his tenured position at the University of Waterloo in 1995, after 25 years in which he had been a major contributor to the renown of the University's Department of Combinatorics and Optimization. The reasons for his dismissal centered on ''"Bondy's acceptance of a teaching post in France, and the acceptability of someone who is on UW's faculty payroll holding a full-time job elsewhere."'' Protesting the decision, Paul Erdős returned his honorary doctorate to the University of Waterloo, and
Vašek Chvátal Vašek is both a Czech surname and masculine given name (diminutive of Václav). It may refer to: Surname * Anton Vašek (1905–1946), Slovak Holocaust perpetrator * Petr Vašek (born 1979), Czech footballer * Radomír Vašek (born 1972), Czech te ...
resigned from his position of ''Adjunct Professor'' at the Department of Combinatorics and Optimization.


Personal life

Bondy has a passion for
photography Photography is the art, application, and practice of creating durable images by recording light, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film. It is employe ...
, having taken pictures since his childhood. In the 1980s, he regularly exhibited his work, most notably at the ''Kitchener-Waterloo Art Gallery'' in
Kitchener, Ontario ) , image_flag = Flag of Kitchener, Ontario.svg , image_seal = Seal of Kitchener, Canada.svg , image_shield=Coat of arms of Kitchener, Canada.svg , image_blank_emblem = Logo of Kitchener, Ontario.svg , blank_emblem_type = ...
. In 2010, Bondy founded the non-profit association ''Mind's Eye'' with the aim ''"to reflect upon the conceptual links between mathematics and photography."'' In 2012, he opened a photo gallery with the same name on the
Rue Saint-Jacques, Paris Rue Saint-Jacques is a street in the Latin Quarter of Paris which lies along the ''cardo'' of Roman Lutetia. Boulevard Saint-Michel, driven through this old quarter of Paris by Baron Haussmann, relegated the roughly parallel Rue Saint-Jacques ...
. Between 2012 and 2022, ''Mind's Eye / Galerie Adrian Bondy'' has hosted 42 exhibitions with works of 27 artists, including
John Claridge John Claridge (born 1944) is a British photographer, known for his work in advertising, black and white portraits in Soho and street photographs in the East End of London. Early life Claridge was born in Plaistow, London. His father worked ...
and
Jean Dréville Jean Dréville (20 September 1906 – 5 March 1997) was a French film director. He directed more than 40 films between 1928 and 1969. Selected filmography * '' Autour de L'Argent'' (1928) * ''A Man of Gold'' (1934) * ''The Chess Player'' ( ...
.


Selected publications

* . * . * . * . * .


See also

* Bondy's theorem * Bondy–Chvátal theorem *
Even circuit theorem In extremal graph theory, the even circuit theorem is a result of Paul Erdős according to which an -vertex graph that does not have a simple cycle of length can only have edges. For instance, 4-cycle-free graphs have edges, 6-cycle-free graphs ...
*
Hypohamiltonian graph In the mathematical field of graph theory, a graph ''G'' is said to be hypohamiltonian if ''G'' itself does not have a Hamiltonian cycle but every graph formed by removing a single vertex from ''G'' is Hamiltonian. History Hypohamiltonian graphs ...
*
Pancyclic graph In the mathematical study of graph theory, a pancyclic graph is a directed graph or undirected graph that contains Cycle (graph theory), cycles of all possible lengths from three up to the number of vertex (graph theory), vertices in the graph.. Pa ...


Notes


References

* * * * * .


External links


Critique of the dismissal
by
Jeffrey Shallit Jeffrey Outlaw Shallit (born October 17, 1957) is a computer scientist, number theorist, and a noted critic of intelligent design. He is married to Anna Lubiw, also a computer scientist. Early life and education Shallit was born in Philadelp ...
Living people Graph theorists University of Waterloo faculty Alumni of the University of Oxford 20th-century English mathematicians 1944 births {{mathematician-stub