Dr Robert Johnson
Lecturer in Pure Mathematics
Email: r.johnson@qmul.ac.ukTelephone: +44 (0)20 7882 5480Room Number: Queens’ Building, Room: CB316Website: http://www.maths.qmul.ac.uk/~jrjOffice Hours: Office Hours: Semester A 2018/19. Wednesday 10:30 -- 11:30 Friday 12:30 -- 1:30
Profile
Robert Johnson is a member of the Combinatorics group in the School of Mathematical Sciences. He has research interests in several areas of combinatorics, particularly extremal problems on graphs, set systems and permutations, and the combinatorics of the discrete hypercube.
Having completed his PhD at the University of Cambridge in 2003, he joined Queen Mary in 2004 following a brief spell at the London School of Economics.
Research
Publications
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JOHNSON JR, Leader I, Walters M (2017). Transitive Avoidance Games.
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JOHNSON JR, Day A (2017). Multicolour Ramsey Numbers of Odd Cycles.
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JOHNSON JR (2016). Saturated Subgraphs of the Hypercube.
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Johnson JR, Leader I, Russell PA (2015). Set Systems Containing Many Maximal Chains.
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Johnson JR, Markstrom K (2013). Turan and Ramsey Properties of Subcube Intersection Graphs.
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Balister P, Bollobas B, Johnson JR et al. (2010). Random Majority Percolation.
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Johnson JR, Talbot J (2010). Vertex Turan problems in the hypercube.
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Baber R, Johnson JR, Talbot J (2010). The minimal density of triangles in tripartite graphs.
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Johnson JR, Talbot J (2008). G-intersection theorems for matchings and other graphs.
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JOHNSON JR, Kierstead HA (2004). Explicit 2-Factorisations of the Odd Graph.
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Johnson JR (2004). Long cycles in the middle two layers of the discrete cube.
PhD Supervision
Previous PhD students supervised:
- Trevor Pinto (completed 2016)
- A Nicholas Day (completed 2017)
Current PhD students:
- Natalie Behague
I welcome enquiries from potential PhD applicants.