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Adrian Bondy
John Adrian Bondy (born 1944 in London) is a retired English mathematician, known for his work in combinatorics and graph theory. Career Bondy received his Ph.D. in graph theory from the University of Oxford in 1969. His advisor was Dominic Welsh. Between 1969 and 1994, Bondy was ''Professor of Graph Theory'' at the University of Waterloo 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 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 Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brackets
A bracket is either of two tall fore- or back-facing punctuation marks commonly used to isolate a segment of text or data from its surroundings. They come in four main pairs of shapes, as given in the box to the right, which also gives their names, that vary between British English, British and American English. "Brackets", without further qualification, are in British English the ... marks and in American English the ... marks. Other symbols are repurposed as brackets in specialist contexts, such as International Phonetic Alphabet#Brackets and transcription delimiters, those used by linguists. Brackets are typically deployed in symmetric pairs, and an individual bracket may be identified as a "left" or "right" bracket or, alternatively, an "opening bracket" or "closing bracket", respectively, depending on the Writing system#Directionality, directionality of the context. In casual writing and in technical fields such as computing or linguistic analysis of grammar, brackets ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vašek Chvátal
Vašek is both a Czech surname and masculine given name (diminutive of Václav Václav () or rarely Vácslav is a Czech name, Czech male given name. It is among the most common Czech names. The Latinized form of the name is Wenceslaus and the Polish form of the name is Wacław. The name was derived from the old Czech name Vece ...). It may refer to: Surname * Anton Vašek (1905–1946), Slovak Holocaust perpetrator * Colton Vasek, American football player * Petr Vašek (born 1979), Czech footballer * Radomír Vašek (born 1972), Czech tennis player Given name * Vašek Klouda (born 1986), Czech freestyle footbag player * Vašek Svoboda (born 1990), Czech footballer * Vašek Pospíšil (born 1990), Canadian tennis player {{DEFAULTSORT:Vasek Czech-language surnames Czech masculine given names Masculine given names ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Mathematical Society
The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, advocacy and other programs. The society is one of the four parts of the Joint Policy Board for Mathematics and a member of the Conference Board of the Mathematical Sciences. History The AMS was founded in 1888 as the New York Mathematical Society, the brainchild of Thomas Fiske, who was impressed by the London Mathematical Society on a visit to England. John Howard Van Amringe became the first president while Fiske became secretary. The society soon decided to publish a journal, but ran into some resistance over concerns about competing with the '' American Journal of Mathematics''. The result was the ''Bulletin of the American Mathematical Society'', with Fiske as editor-in-chief. The de facto journal, as intended, was influentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematical Reviews
''Mathematical Reviews'' is a journal published by the American Mathematical Society (AMS) that contains brief synopses, and in some cases evaluations, of many articles in mathematics, statistics, and theoretical computer science. The AMS also publishes an associated online bibliographic database called MathSciNet, which contains an electronic version of ''Mathematical Reviews''. Reviews Mathematical Reviews was founded by Otto E. Neugebauer in 1940 as an alternative to the German journal '' Zentralblatt für Mathematik'', which Neugebauer had also founded a decade earlier, but which under the Nazis had begun censoring reviews by and of Jewish mathematicians. The goal of the new journal was to give reviews of every mathematical research publication. As of November 2007, the ''Mathematical Reviews'' database contained information on over 2.2 million articles. The authors of reviews are volunteers, usually chosen by the editors because of some expertise in the area of the articl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pancyclic Graph
In the mathematical study of graph theory, a pancyclic graph is a directed graph or undirected graph that contains cycles of all possible lengths from three up to the number of vertices in the graph.. Pancyclic graphs are a generalization of Hamiltonian graphs, graphs which have a cycle of the maximum possible length. Definitions An n-vertex graph G is pancyclic if, for every k in the range 3 \leq k \leq n, it contains a cycle of length k. It is node-pancyclic or vertex-pancyclic if, for every vertex v and every k in the same range, it contains a cycle of length k that contains v.. Similarly, it is edge-pancyclic if, for every edge e and every k in the same range, it contains a cycle of length k that contains e. A bipartite graph cannot be pancyclic, because it does not contain any odd-length cycles, but it is said to be bipancyclic if it contains cycles of all even lengths from 4 to n. Planar graphs A maximal outerplanar graph is a graph formed by a simple polygon in the pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypohamiltonian Graph
In the mathematics, mathematical field of graph theory, a graph (discrete mathematics), 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 graph, Hamiltonian. History Hypohamiltonian graphs were first studied by . cites and as additional early papers on the subject; another early work is by . sums up much of the research in this area with the following sentence: “The articles dealing with those graphs ... usually exhibit new classes of hypohamiltonian or hypotraceable graphs showing that for certain orders ''n'' such graphs indeed exist or that they possess strange and unexpected properties.” Applications Hypohamiltonian graphs arise in integer programming solutions to the traveling salesman problem: certain kinds of hypohamiltonian graphs define Facet (mathematics), facets of the ''traveling salesman polytope'', a shape defined as the convex hull of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 have edges, etc. History The result was stated without proof by Erdős in 1964. published the first proof, and strengthened the theorem to show that, for -vertex graphs with edges, all even cycle lengths between and occur.. Lower bounds The bound of Erdős's theorem is tight up to constant factors for some small values of ''k'': for ''k'' = 2, 3, or 5, there exist graphs with edges that have no -cycle. It is unknown for other than 2, 3, or 5 whether there exist graphs that have no -cycle but have edges, matching Erdős's upper bound. Only a weaker bound is known, according to which the number of edges can be for odd values of , or for even values of . Constant factors Because a 4-cycle is a complete bipartite graph, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Graph Theory
The ''Journal of Graph Theory'' is a peer-reviewed mathematics journal specializing in graph theory and related areas, such as structural results about graphs, graph algorithms with theoretical emphasis, and discrete optimization on graphs. The scope of the journal also includes related areas in combinatorics and the interaction of graph theory with other mathematical sciences. It is published by John Wiley & Sons. The journal was established in 1977 by Frank Harary.Frank Harary a biographical sketch at the ACM site The are [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Combinatorial Theory
The ''Journal of Combinatorial Theory'', Series A and Series B, are mathematical journals specializing in combinatorics and related areas. They are published by Elsevier. ''Series A'' is concerned primarily with structures, designs, and applications of combinatorics. ''Series B'' is concerned primarily with graph and matroid theory. The two series are two of the leading journals in the field and are widely known as ''JCTA'' and ''JCTB''. The journal was founded in 1966 by Frank Harary and Gian-Carlo Rota.They are acknowledged on the journals' title pages and Web sites. SeEditorial board of JCTA Originally there was only one journal, which was split into two parts in 1971 as the field grew rapidly. In 2020, most of the editorial board of ''JCTA'' resigned to form a new, |
Discrete Mathematics (journal)
''Discrete Mathematics'' is a biweekly peer-reviewed scientific journal in the broad area of discrete mathematics, combinatorics, graph theory, and their applications. It was established in 1971 and is published by North-Holland Publishing Company. It publishes both short notes, full length contributions, as well as survey articles. In addition, the journal publishes a number of special issues each year dedicated to a particular topic. Although originally it published articles in French and German, it now allows only English language articles. The editor-in-chief is Douglas West ( University of Illinois, Urbana). History The journal was established in 1971. The first article it published was written by Paul Erdős, who went on to publish a total of 84 papers in the journal. Abstracting and indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact facto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 * (1928) * '' A Man of Gold'' (1934) * '' The Chess Player'' (1938) * '' White Nights in Saint Petersburg'' (1938) * '' His Uncle from Normandy'' (1939) * '' President Haudecoeur'' (1940) * '' Annette and the Blonde Woman'' (1942) * '' Business Is Business'' (1942) * '' A Cage of Nightingales'' (1945) * '' The Visitor'' (1946) * '' The Spice of Life'' (1948) * '' Return to Life'' (1949) * '' The Girl with the Whip'' (1952) * '' The Secret of the Mountain Lake'' (1952) * '' Endless Horizons'' (1953) * '' Queen Margot'' (1954) * '' Stopover in Orly'' (1955) * '' The Suspects'' (1957) * '' A Dog, a Mouse, and a Sputnik'' (1958) * '' Nights of Farewell'' (1965) * ''The Last of the Mohicans ''The Last of the Mohicans: A Narrative of 1757'' is an 1826 historical romance novel by James Fenimore Cooper. It is the second book ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, Essex. His father worked in the docks, sold alcohol in New York during Prohibition and was a bare-knuckle boxer in the dock areas in both New York and the East End; Claridge also boxed. His mother was a shirt machinist working in Roman Road, Bow. Aged 8, Claridge saw a plastic camera at an East End funfair and had to have it. A few years later, he saved up enough money from his paper round in the London docks to buy a proper camera to record the world he was growing up in. From the age of 13, he started to buy jazz records, and it remained a lifetime obsession. He had no formal training as a photographer but aged 15, began working for McCann Erickson advertising agency in their Photography and Design department. He worked under Robert Brownjohn, the art director k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
