Here is a list of Combinatorics and OptimizationÌýPhD recipients, their thesis titles and supervisors, and their last known positions.
2024
- Qiuting Chen
(C. Godsil) - Andrew Jena
(M. Mosca) - Sabrina Lato
(C. Godsil) - Madison Van Dyk
(J. Koenemann)
2023
- Amena Assem Abd-AlQader Mahmoud
(B. Richter) - Haesol Im
(H. Wolkowicz) - Maxwell Levit
(C. Godsil) - Lukas Nabergall
(K. Yeats) - Connor Paul-Paddock
(J. Yard) - Shayla Redlin Hume
(P. Nelson) - Hao Sun
(J. Koenemann)
2022
- Soffia Arnadottir
(C. Godsil) - James Davies
(J. Geelen) - Sharat Ibrahimpur
(C. Swamy) - Sean Kafer
(L. Sanita) - Jimit Majmudar
(S. Vavasis) - Rose McCarty
(J. Geelen) - Joshua Nevin
(B. Richter) - Evelyne Smith-Roberge
(L. Postle) - Leanne Stuive
(B. Guenin and L. Tuncel) - Matthew Sullivan
(B. Richter)
2021
- Shima Bab Hadiashar
(A. Nayak) - Cheolwon Heo
(B. Guenin) - Benjamin Moore
(L. Postle) - Kazuhiro Nomoto
(P. Nelson) - Sina Rezazadeh Baghal
(S. Vavasis) - Julian Romero Barbosa
(L. Tuncel) - Luis Ruiz-Lopez
(D. Jao) - William Justin Toth
(J. Koenemann)
2020
- Rutger Campbell
(J. Geelen) - Jamie de Jong
(B. Richter) - Jason LeGrow
(D. Jao) - Christopher Leonardi
(D. Jao) - Ali Mahmoud
(K. Yeats) - John Schanck
(M. Mosca) - Ala Shayeghi
(A. Nayak) - Stefan Sremac
(H. Wolkowicz) - Zachary Walsh
(P. Nelson)
2019
- Alessandra Graf
(P. Haxell) - Nargiz Kalantrarova
(L. Tuncel) University of À¶Ý®ÊÓÆµ - Thomas Kelly
(L. Postle) - Cameron Marcott
(K. Purbhoo) - Andre Linhares Rodrigues
(C. Swamy) - Christopher van Bommel
(C. Godsil) - Caelan (Xiaojing) Wang
(C. Godsil)
2018
- Ahmad Abdi
(B. Guenin)
London School of Economics (UK) - Alan Arroyo Guevara
(B. Ritcher)
IST Austria - Gabriel Gauthier-Shalom
(D. Jao) - Nathan Lindzey
(J. Cheriyan) - Hanmeng Zhan
(C. Godsil)
University of Montreal (Canada)
2017
- Sara Ahmadian
(C. Swamy)
Google - Alinson Xavier
(R. Fukasawa)
Argonne National Laboratory (USA)
2016
- Aaron Chan
(I. Goulden)
Google - Nishad Kothari
(J. Cheriyan)
University of Campinas (Brazil) - Micheal Szestopalow
(P. Haxell)
University of Manitoba (Canada)
2015
- Sean Carrell
(I. Goulden)
Shopify (Canada) - Linda Farczadi
(J. Koenemann)
Philip Morris International (Switzerland) - Zhihan Gao
Approximation Algorithms for Path TSP, ATSP, and TAP via Relaxations
(J. Cheriyan)
University of À¶Ý®ÊÓÆµ (Canada) - Benson Joeris
(J. Geelen)
Google - Abbas Mehrabian
(J. Cheriyan)
McGill University (Canada) - Tor Myklebust
(L. Tuncel)
2014
- Yu-Hin (Gary) Au
(L. Tuncel)
University of Sasketchewan (Canada) - Fidel Barrera-Cruz
(P. Haxell)
Google - Gabriel Coutinho
(C. Godsil)
Federal University of Minas Gerais (Brazil) - Junbo (Mario) Huang
(C. Godsil)
The Chinese University of Hong Kong - Brendan Rooney
(C. Godsil)
Rochester Institute of Technology (USA)
2013
- Yuen-Lam (Vris) Cheung
(H.Wolkowicz)
Tradewins Ltd. (USA) - Rohan Kapadia
(J. Geelen)
Amazon - Sahar Karimi
(S. Vavasis)
Amazon - Laura Mancinska
(D. Leung, A. Childs)
University of Copehnagen (Denmark) - Hadi Minooei
(C. Swamy)
Bitvore (USA) - Natalie Mullin
(C. Godsil)
iQBit (Canada) - Yingkai Ouyang
(D. Leung)
The University of Sheffield (UK) - David Roberson
(C.Godsil)
Technical University of Denmark - Cristiane Maria Sato
(N. Wormald)
Federal University of ABC (Brazil) - Marcel Kenji de Carli Silva
(L. Tuncel)
University of Sao Paulo (Brazil)
2012
- Mathieu Guay-Paquet
(I. Goulden)
UQAM (Canada) - Edward Knapp
(A. Menezes)
Google - Maris Ozols
(A. Childs, D. Leung)University of Amsterdam (Netherlands)​
- Jamie Sikora
(L. Tuncel, A. Nayak)
Perimeter Institute (Canada) - Jamie Smith
(C. Godsil, M. Mosca)
Google
2011
- Brendan Ames
(S. Vavasis)
University ofÌýAlabamaÌý(±«³§´¡) - Robin Christian
(B. Richter) - Peter Nelson
(J. Geelen)
University of À¶Ý®ÊÓÆµ (Canada) - Irene Pivotto
(B. Guenin)
University of Western Australia - Craig Sloss
(D. Jackson, I. Goulden)
Economical Insurance (Canada)
2010
- Pu (Jane) Gao
(N. Wormald)
University of À¶Ý®ÊÓÆµ (Canada) - Koray Karabina
(A. Menezes)
Florida Atlantic University (USA) - Nathan Krislock
(H. Wolkowicz)
Northern Illinois University (USA) - David Pritchard
(J. Koenemann)
Google - Mirhamed Shirazi
(C. Godsil)
AppCentrica Inc. (Canada)
2009
- Ashkan Aazami
(J. Cheriyan)
Microsoft (USA) - Tony Huynh
(J. Geelen)
Universite Libre de Bruxelles (Belgium) - Michael La Croix
(I. Goulden/D. Jackson) - Jessica McDonald
(P. Haxell)
Auburn University (USA) - Douglas Stebila
(M. Mosca)
University of À¶Ý®ÊÓÆµ (Canada)
2008
- Niel de Beaudrap
(M. Mosca/A. Nayak)
University of Oxford (UK) - Carlos Hoppen
(N. Wormald)
Universidade Federal Do Rio Grande Do Sul (Brazil) - Graeme Kemkes
(N. Wormald)
Government of Canada - Atefeh Mashatan (D. Stinson/E. Teske-Wilson)
Ryerson University (Canada) - Martin Pei
(P. Haxell)
University of À¶Ý®ÊÓÆµ (Canada) - Berkant Ustaoglu
(A. Menezes/S. Vanstone)
Izmir University of Technology (Turkey)
2007
- Donny Cheung
(M. Mosca)
Google
2006
- Omran Ahmadi Darvishvand
Distribution of Irreducible Polynomials Over Finite Fields
(A. Menezes)
Institute for Research in Fundamental Sciences (Iran) - Marina Potaptchik
(M. Best)
Canadian Imperial Bank of Commerce (Canada) - Aidan Roy
Complex Lines with Restricted Angles
(C. Godsil)
D-Wave (Canada) - Hua Wei
(H. Wolkowicz)
Tetrem Capital Management (Canada)
2005
- Ken Giuliani
Sequences Over Finite Fields and Elliptic Curves Over Rings in Cryptography
(Supervisors G. Gong & S. Vanstone)
Canadian Imperial Bank of Commerce (Canada) - Jooyoung Lee
Combinatorial Approaches to Key Predistribution for Distributed Sensor Networks
(D. Stinson)
KAIST (Korea) - James Muir
(D. Stinson)
CIS Secure Computing (Canada) - Michael Newman
(C.D. Godsil)
University of Ottawa (Canada) - Amarpreet Rattan
(I.P. Goulden)
Simon Fraser University (Canada) - Antoine Vella
(B. Richter)
United National (Austria)
2004
- Jacki Ho
Issues of Solving Linear Programming Problems and a Generalization of Tardos Theorem
(L. Tunçel)
Scotiabank (Canada) - John Irving
(D. Jackson)
St. Mary's University (Canada) - Khoongming Khoo
Sequence Design and Construction of Cryptographic Boolean Functions
(G. Gong and D. Stinson)
DSO National Labs (Singapore) - Kerri Webb
(J. Geelen) - Francisco Javier Zaragoza Martinez
(W.H. Cunningham)
Universidad Autonoma Metropolitana Unidad Azcapotzalco (Mexico)
2003
- Kevin Cheung
Subtour Elimination Polytopes and Graphs of Inscribable Type
(W.H. Cunningham)
Carleton University (Canada) - Young-Bin Choe
Polynomials With The Half-Plane Property and Rayleigh Monotonicity
(D.G. Wagner)
Scotiabank (Canada) - Alastair Farrugia
(R.B. Richter)
Crimsonwing (Malta) - Cheuk Ying Charles Lam
Topics in Sequence Analysis and Coding Theory
(G. Gong and S.A. Vanstone)
California State University Bakersfield (USA) - John Proos
Imperfect Decryption and Partial Information Attacks in Crytography
(S.A. Vanstone)
Communications Security Establishment (Canada)
2001
- Miguel Anjos
(H. Wolkowicz)
Ecole Polytechnique de Montreal (Canada) - Lise Arseneau
Parametric and Non-convex Quadratic Programming Problems
(M.J. Best)
Department of National Defence (Canada) - Ada Chan
(C. Godsil)
York University (Canada) - Serge Kruk
(H. Wolkowicz)
Oakland University (USA) - Hristo Sendov
(A. Lewis)
University of Western Ontario (Canada)
1999
- Daniel Brown
(D. Jackson)
BlackBerry (Canada)
1997
- Baoyan Ding
(M.J. Best)
Bank of Montreal (Canada) - Robert Gallant
(C.J. Colbourn)
Memorial University (Canada) - Jeffrey Higham
(R.C. Mullin)
Algorithmics (Canada) - Alan Ling
(C.J. Colbourn)
University of Vermont (USA) - Qing Zhao
(H. Wolkowicz)
TransQuest (Canada) - Robert Zuccherato
(S.A. Vanstone)
Independent Consultant (Canada)
1996
- James Geelen
Matchings, Matroids and Unimodular Matrices
(W.H. Cunningham)
University of À¶Ý®ÊÓÆµ (Canada) - Bo Yu
Node Multiterminal Cuts, Feasible Cuts, and Multicommodity Flows
(J. Cheriyan)
Associates First Capital Corporation (USA)
1995
- Eddie Cheng
Wheel Inequalities for Stable Set Polytopes
(W. H. Cunningham)
Oakland University (USA) - David Horrocks
Sperner Properties of Filters Generated by Two-Sets in Boolean Algebras
(D.M.Jackson)
University of Prince Edward Island (Canada) - Zhike Jiang
Rotational Steiner Triple Systems
(C.J. Colbourn)
Bank of Montreal (Canada) - Aleksandar Jurisic
Antipodal Covers
(C. Godsil)
Institute of Mathematics, Physics and Mechanics (Slovenia) - Therese Lee
Tools for Constructing RBIBDs Frames, NRBs and SOLSSOMs
(S. Furino) - Krishna Padayachee
Conservative Weightings and Minimum T-joins
(D.H. Younger)
3M Corporation (Canada)
1994
- Angele Hamel
Algebraic and Combinatorial Methods for Symmetric and Supersymmetric Functions
(I.P. Goulden)
Wilfrid Laurier University (Canada) - Taojun Lu
Extremal Graphs Satisfying Certain Cycle Properties
(R.C. Read)
Citibank (Canada) - David Mates
A Projection Method for the Floor Planning Problem
(A. Conn, A. Vannelli)
MDA (Canada) - Minghua Qu
Subset Factorizations in Finite Groups and Their Cryptographic Significance
(S.A. Vanstone)
TD Bank (Canada)
1993
- Ricardo Dahab
The Birkhoff-Lewis Equations
(D. Younger)
University of Campinas (Brazil) - Shuhong Gao
Normal Bases Over Finite Fields
(R.C. Mullin)
Clemson University (USA) - Kyriakos Kilakos
Colourings and Fractional Colourings
(U.S.R. Murty and B. A. Reed)
1992
- Sandor Fekete
Geometry and the Travelling Salesman Problem
(W.R. Pulleyblank)
Braunschweig University of Technology (Germany) - Bill Martin
Completely Regular Subsets
(C.D. Godsil)
Worcester Polytechnic Institute (USA) - Alfred Menezes
Elliptic Curve Cryptosystems
(S.A. Vanstone)
University of À¶Ý®ÊÓÆµ (Canada)
1991
- Isidoro Gitler
Delta-Wye-Delta Transformations Algorithms and Applications
(F. Barahona)
CINVESTAV (Mexico) - Marcel Mongeau
Discontinuous Piecewise Differentiable Optimization
(A.R. Conn)
Ecole Nationale de L'Aviation Civile (France) - Ruo Tan
Quadratic Programming and Isotonic Regression: Some Efficient Algorithms
(M.J. Best)
Segal Rogerscasey Canada
1990
- Steve Furino
a-Resolvable Structures
(S.A. Vanstone)
University of À¶Ý®ÊÓÆµ (Canada) - Bruce Gamble
Polyhedral Extensions of Matching Theory
(W.R. Pulleyblank)
Schneider National Inc. (USA) - Scott Hadley
Continuous Optimization Approaches for the Quadratic Assignment Problem
(H. Wolkowicz)
Focused Management Inc. (Canada) - Alice Metzlar
Minimum Transversals of Cycles in Intercyclic Digraphs
(D.H. Younger) - Karen Seyffarth
Cycle and Path Covers of Graphs
(J.A. Bondy)
University of Calgary (Canada) - Bruce Shepherd
Near Perfection And Stable Set Polyhedra
(W.R. Pulleyblank)
UBC (Canada)
1989
- Glen Holman
A New Curvilinear Algorithm for Unconstrained Optimization Using Directions of Negative Curvature
(A.R. Conn)
Royal Trust Investements (Canada) - Luis Goddyn
Cycle Covers of Graphs
(J.A. Bondy)
Simon Fraser University (Canada) - Sean McGuinness
Random Walks on Graphs and Digraphs
(L.B. Richmond)
Thompson Rivers University (Canada) - Terry Visentin
A Character Theoretic Approach To The Study of Combinatorial Properties of Maps in Orientable Surfaces
(D.M. Jackson)
University of Winnipeg (Canada)
1988
- Neil Calkin
Sum - free sets and measure spaces
(I.P. Goulden)
Clemson University (USA) - Genghua Fan
Extremal Theorems on Paths and Cycles in Graphs and Weighted Graphs
(J.A. Bondy)
Fuzhou University (China) - Wei-Guo Liu
Extended Formulations and Polyhedral Projection
(W.R. Pulleyblank)
Yahoo - Bill McCuaig
Edge Reductions of Cyclically K-connected Cubic Graphs
(R.C. Read)
1987
- Nilotpal Chakravarti
Efficient Active Set Algorithms For Specially Structured Quadratic Programs
(M.J. Best)
Radix Analytics (Singapore) - Donald Curran
Constructions for Resolvable and Doubly Resolvable Designs
(S.A. Vanstone)
R.S. McLaughlin C.V.I. (Canada)
1986
- Jean-Marie Bourjolly
Integral and Fractional Node-Packings and Pseudo-Boolean Programming
(W.R. Pulleyblank)
Concordia University (Canada) - Sylvia Boyd
The Subtour Polytope of the Travelling Salesman Problem
(W.R. Pulleyblank)
University of Ottawa (Canada) - Mark Ellingham
Isomorphic Factorizations of Regular Graphs
(B. Richmond)
Vanderbilt University (USA) - Doug Wiedemann
Hamming Geometry
(R.C. Mullin)
Center for Communications Research (USA)Ìý
1985
- Uldis Celmins
On Cubic Graphs That Have No Edge 3-Colouring
(D. Younger)
University of À¶Ý®ÊÓÆµ (Canada)
1984
- Gerald Koop
Optimal Multiple Shift Manpower Scheduling: Models and Algorithms
(R. Burns)
VMI Medical Inc. (Canada) - Nadimpalli Mahadev
Stability Numbers in Structured Graphs. (P. Hammer)
Fitchburg State University (USA)Ìý
1983
- Richard Caron
A Parameterized Hessian Quadratic Programming Problem
(M. Best, D. Grierson)
University of Windsor (Canada) - Bill Cook
On Some Aspects of Totally Dual Integral Systems
(U.S.R. Murty)
University of À¶Ý®ÊÓÆµ (Canada) - Paulo Feofiloff
Disjoint Transversals of Directed Coboundaries
(D. Younger)
University of Sao Paulo (Brazil) - Bruce Richter
The Toplogy of Embedded Graphs
(D. Younger)
University of À¶Ý®ÊÓÆµ (Canada) - Philip O'Neill
Piecewise Continuous Optimization
(A. Conn)
Quantitative Decision Support, Inc. (Canada)
1982
- Kathie Cameron
Polyhedral and Algorithmic Ramifications of Antichains
(J. Edmonds)
Wilfrid Laurier University (Canada) - Komei Fukuda
Oriented Matroid Programming
(J. Edmonds)
ETH Zurich (Switzerland) - Ephraim Korach
Packing of T-cuts, and Other Aspects of Dual Integrality
(J. Edmonds)
Ben-Gurion University of the Negev (Israel) - Stephen Locke
Extremal Properties of Paths, Cycles, and k-Colourable Subgraphs of Graphs
(A. Bondy)
Florida Atlantic University (USA) - Arnaldo Mandel
Topology of Oriented Matroids
(J. Edmonds)
University of Sao Paulo (Brazil) - Bimal Roy
On Isomorphic Subgraphs Having Minimum Intersections
(R. Mullin, P. Schellenberg)
Indian Statistical Institute (India) - George Steiner
Machine Scheduling with Precedence Constraints
(R. Burns)
McMaster University (Canada)
1981
- Mustafa Akgul
Topics in Relaxation and Ellipsoidal Methods
(J. Edmonds)
Bilkent University (Turkey) - Jarmila Chvátalova
On the Bandwidth Problem for Graphs
(C. Nash-Williams, D. Younger)
Vanier College (Canada) - John Devitt
The Algebraic Maniplation of Certain Enumerative Construction
(D. Jackson)
BlackBerry (Canada) - John Robinson
Scotch Pebbles
(D. Younger)
The Pragmagic Group, Thunder Bay (Canada) - Doug Stinson
Some Classes of Frames, and the Spectra of Skew Room Squares and Howell Designs
(R. Mullin)
University of À¶Ý®ÊÓÆµ (Canada)
1980
- Andrew Ball
The Construction of Comma-Free Codes With Odd World Length
(L. Cunnings)
MIM Holdings Limited (Australia) - Ryoh Fuji-Hara
Doubly Resolvable Designs From Finite Geometries
(S. Vanstone)
University of Tsukuba (Japan) - Sostenes Lins
Graphs of Maps
(D. Younger)
Universidade Federal de Pernambuco (Brazil) - Jorge Urrutia
Intersection Graphs of Some Families of Plane Curves
(R. Read)
Universidad Nacional Autonoma de Mexico
1979
- Kenneth Berman
Spanning Trees, Arborescences and 4-Valent Graphs
(W. Tutte)
University of Cincinnati - Michael Carter
Integer Quadratic Programming: A Continuous Approach
(R. Burns)
University of Toronto (Canada) - Tom Coleman
A Superlinear Penalty Function Method to Solve the Nonlinear Programming Problem
(A. Conn)
University of À¶Ý®ÊÓÆµ (Canada) - Ian Goulden
Combinatorial Decompositions in the Theory of Algebraic Enumeration
(D. Jackson)
University of À¶Ý®ÊÓÆµ (Canada) - Bill Kocay
K-Reconstruction of Graphs
(R. Read)
University of Manitoba (Canada) - Etan Koch
Ramifications of Matching Theory
(J. Edmonds)
Independent consultant (Israel) - Bruno Simeone
Quadratic 0-1 Programming, Boolean Functions and Graphs
(P. Hammer)
Sapienza Universita di Roma (Italy) - Richard Steinberg
Flows, Colorings and Embeddings of Graphs
(W. Tutte)
London School of Economics (UK)
1978
- Bill Jackson
Cycles in Graphs
(A. Bondy)
University of London (UK) - Thomas Ralston
Constructions and Reconstructions
(R. Mullin, L. Dickey)
Monmouth College (USA) - John Van Rees
The Role of (r, γ)-Designs in Some Combinatorial Configurations
(R. Mullin)
University of Manitoba (Canada)
1977
- Stephan Foldes
Symmetries
(W. Tutte)
Tampere University of Technology (Finland) - Victor Griffin
Polyhedral Polarity
(J. Edmonds)
Ford Motors of Venezuela - David McCarthy
Embeddings of Regular Pairwise Balanced Designs
(R. Mullin)
Brock University (Canada) - James Reilly
An Enumerative Combinatorial Theory of Formal Power Series
(D. Jackson)
Ontario Hydro (Canada)
1976
- Vithit Chungphaisan
Degree Sequences of Graphs and Their Realization
(A. Bondy, C. Nash-Williams)
Bell Northern Research (Canada) - Dean Hoffman
Sets of Integers Closed Under Affine Operations
(D. Klarner, R. Mullin)
Auburn University (USA) - Claudio Lucchesi
A Minimax Equality for Directed Graphs
(D. Younger)
University of Campinas (Brazil) - Uri Peled
Regular Boolean Functions and Their Polytopes
(P. Hammer)
University of Illinois at Chicago (USA) - Earl Rosenbloom
Storage Reducing Quasi-Newton Methods for Unconstrained Minimization
(M. Best)
University of Manitoba (Canada) - Carsten Thomassen
Paths and Cycles in Graphs
(D. Younger)
Tehnical University of Denmark
1975
- Frederick Giles
Submodular Functions, Graphs and Integer Polyhedra
(J. Edmonds)
Acadia University (Canada)
1974
- Wayne Brehaut
On Planar Graphs and the Plainer Nonplanar Graphs
(R. Read)
Bell Northern Research (Canada) - Bill Cunningham
A Combinatorial Decomposition Theory
(J. Edmonds)
University of À¶Ý®ÊÓÆµ (Canada) - A. Keewatin Dewdney
Extensions and Generalizations of Graph Theorems to Complexes and Hypergraphs
(C. Nash-Williams)
University of Western Ontario (Canada) - Edward Farrell
On a General Class of Graph Polynomials
(R. Read)
University of the West Indies - Bert Hartnell
The Characterization of Those Graphs Whose Spanning Trees Can Be Partitioned into Two Isomorphic Classes
(R. Mullin)
St. Mary's University (Canada) - Tom Jenkyns
A Generalization of Matchings and Matroids
(J. Edmonds)
Brock University (Canada) - Scott Vanstone
The Structure of Regular Pair-Wise Balanced Designs
(R. Mullin)
St. Jerome's University (Canada)
1973
- Anton Colijn
Pseudo-Boolean Programming
(G. Berman)
University of Calgary (Canada) - Bill Pulleyblank
Faces of Matching Polyhedra
(J. Edmonds)
The United States Military Academy (USA) - William Richardson
Connectivity, Decomposition and Complexity in Matroids
(U.S.R. Murty)
Canadian Pacific Railways
1972
- Ben Gardner
On Coverings and (r, λ) - Systems
(R. Mullin)
Memorial University (Canada) - Charles Little
On Kasteleyn's Method of Enumerating the 1-Factors of a Graph
(D. Younger)
Massey University (New Zealand)
1971
- Gary Faulkner
Recursive Generation of Cyclically k-Connected Cubic Planar Graphs
(D. Younger) - Arthur Hobbs
Hamiltonian Cycles in Powers of Graphs
(W. Tutte)
Texas A&M University (USA) - Joseph Horton
Some Recursive Constructions of Combinatorial Designs
(R. Mullin)
University of New Brunswick (Canada) - Evi Nemeth
A Study of Room Squares
University of Colorado at Boulder (USA) - Paul Schellenberg
Constructions for (Balanced) Room Squares
(R. Mullin)
University of À¶Ý®ÊÓÆµ (Canada)
1970
- Richard Burns
Nonlinear Programming without Differentiability
(G. Berman)
Queen's University (Canada) - Vasek Chvátal
Hypergraphs and Ramseyian Theorems
(C. Nash-Williams)
Concordia University (Canada) - John Vranch
Some Direct Constructions of Balanced Incomplete Block Designs
(R. Mullin)
Fanshawe College (Canada) - Jack Zimmer
On Automorphisms of Graphs
(C. Nash-Williams)
University of North Dakota (USA)
1969
- Neil Robertson
Graphs Minimal under Girth, Valency and Connectivity Constraints
(W. Tutte)
Ohio State University (USA)