Project description
Turan-type problems under study
A central question in graph theory is determining how many edges a graph has if it does not contain a specified configuration as a subgraph. Mantel’s theorem from 1908 gives the maximum number of edges a graph can have on a given number of vertices if it does not contain a triangle. Extremal problems of this type are known as Turan-type problems. Funded by the Marie Skłodowska-Curie Actions programme, the TurantypeProblems project will study several Turan-type problems concerning graphs and hypergraphs as well as related extremal problems on rainbow structures.
Objective
In this project, we propose to study several Turan-type extremal problems for graphs and hypergraphs as well as related extremal problems on rainbow structures. In Turan-type extremal problems, roughly speaking, we want to determine how dense a configuration (graph, hypergraph, set system, etc.) can be when certain sub-configurations are forbidden. One of the earliest results in the area is Mantel's Theorem from 1908, which says that the largest triangle-free graph on given number of vertices is the balanced complete bipartite graph. This was generalized by Turan in 1941 to complete graphs on any number of vertices. The Turan-number of a graph G is the largest number of edges that a graph on given number of vertices can have without containing G.
The experienced researcher in recent years has made several contributions to these problems. On Turan-type problems for bipartite graphs, in joint work with Jiang and Ma, the she made a first non-trivial progress in a while to a conjecture of Erdos and Simonovits regarding the so-called Turan exponents of single bipartite graphs. On hypergraph Turan-type problems, in joint work with Sergey Norin, she has developed a highly effective variant of the classical stability method that allowed them to solve several open conjectures in the field. The TC-supervisor, Dhruv Mubayi, is a world leading expert on Turan-type extremal problems. Working on problems posed in this proposal will allow the experienced researcher to further develop these promising tools with a leading expert.
The second set of problems concern rainbow structures in edge-coloured graphs and hypergraphs. The experienced researcher, in joint works with Peter Keevash, and also with others had made several contributions to this area in the last two years. Here there is also a common theme of a series of work done by the MC-supervisor Julia Boettcher, who is a leading expert on the study of spanning structures in graphs and hypergraphs.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF-GF - Global Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2018
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
WC2A 2AE London
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.