Objective
Traditional complexity theory focuses on the dichotomy between P and NP-hard
problems. Lately, it has become increasingly clear that this misses a major part
of the picture. Results by the PI and others offer glimpses on a fascinating structure
hiding inside NP: new computational problems that seem to lie between polynomial
and NP-hard have been identified; new conditional lower bounds for problems with
large polynomial running times have been found; long-held beliefs on the difficulty
of problems in P have been overturned. Computational geometry plays a major role
in these developments, providing some of the main questions and concepts.
We propose to explore this fascinating landscape inside NP from the perspective
of computational geometry, guided by three complementary questions:
(A) What can we say about the complexity of search problems derived from
existence theorems in discrete geometry? These problems offer a new
perspective on complexity classes previously studied in algorithmic game
theory (PPAD, PLS, CLS). Preliminary work indicates that they have the
potential to answer long-standing open questions on these classes.
(B) Can we provide meaningful conditional lower bounds on geometric
problems for which we have only algorithms with large polynomial running
time? Prompted by a question raised by the PI and collaborators, such lower
bounds were developed for the Frechet distance. Are similar results possible
for problems not related to distance measures? If so, this could dramatically
extend the traditional theory based on 3SUM-hardness to a much more
diverse and nuanced picture.
(C) Can we find subquadratic decision trees and faster algorithms for
3SUM-hard problems? After recent results by Pettie and Gronlund on
3SUM and by the PI and collaborators on the Frechet distance, we
have the potential to gain new insights on this large class of well-studied
problems and to improve long-standing complexity bounds for them.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- social sciences economics and business economics econometrics
- social sciences sociology
- natural sciences mathematics applied mathematics game theory
- natural sciences mathematics pure mathematics geometry
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
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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
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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.
ERC-STG - Starting Grant
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2017-STG
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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.
14195 Berlin
Germany
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