Showing 2,961 - 2,980 results of 3,046 for search '"Combinatorics"', query time: 0.14s Refine Results
  1. 2961
  2. 2962
  3. 2963

    Randomised algorithms for low temperature spin systems by Stewart, J

    Published 2022
    “…Spin systems provide a framework for sampling and counting problems in computer science, graph homomorphism problems in combinatorics, and phase transition phenomena in statistical physics. …”
    Thesis
  4. 2964
  5. 2965
  6. 2966

    Algorithms and Algorithmic Barriers in High-Dimensional Statistics and Random Combinatorial Structures by Kizildag, Eren C.

    Published 2022
    “…Our hardness results for the stable algorithms are based on Ramsey Theory from extremal combinatorics. To the best of our knowledge, this is the first usage of Ramsey Theory to show algorithmic hardness for models with random parameters. 2. …”
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    Thesis
  7. 2967

    Reliability analysis and improvement of multilevel converters by Tu, Pengfei

    Published 2019
    “…The network reliability modeling techniques, combinatorics and stochastic process, are used to model the inherent redundancy in multilevel converters. …”
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    Thesis
  8. 2968

    On product sets of arithmetic progressions by Max Wenqiang Xu, Yunkun Zhou

    Published 2023-07-01
    “…In the terminology of arithmetic combinatorics, the original problem asks for the size of the product set $A.A$, where $A$ is the set $\{1,2,\dots,n\}$. …”
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    Article
  9. 2969

    New bound for Roth's theorem with generalized coefficients by Cédric Pilatte

    Published 2022-12-01
    “…It is the first non-trivial case of Szemerédi's theorem (which is the generalization from 3 to arbitrary $k$), and as such has played an absolutely central role in additive combinatorics. Surprisingly, given the simplicity of the statement, obtaining upper and lower bounds that are reasonably close to each other has turned out to be a very hard problem. …”
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    Article
  10. 2970

    New lower bounds for cap sets by Fred Tyrrell

    Published 2023-12-01
    “…One of the best known problems in additive combinatorics, the cap set problem, asks how large a subset of $\mathbb F_3^n$ can be if it contains no non-trivial solutions to the equation $x+y+z=0$. …”
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    Article
  11. 2971

    From Permutation Patterns to the Periodic Table by Saeid Alikhani, Maryam Safazadeh

    Published 2023-05-01
    “…Pudwell, From Permutation Patterns to the Periodic Table, Notices of the American Mathematical Society, 67 994–1001.))Abstract: Permutation patterns is a burgeoning area of research with roots in enumerative combinatorics and theoretical computer science. This article first presents a brief overview of pattern avoidance and a survey of enumeration results that are standard knowledge within the field. …”
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    Article
  12. 2972

    Excluding affine configurations over a finite field by Dion Gijswijt

    Published 2023-12-01
    “…In 2016 a remarkable development took place in additive combinatorics, when Ernie Croot, Seva Lev and Péter Pál Pach posted a paper to arXiv using the polynomial method to obtain an exponential upper bound for the density of a subset of $\mathbb F_4^n$ that does not contain an arithmetic progression of length 3, and very shortly afterwards, Jordan Ellenberg and the author of this paper modified the proof to obtain a similar upper bound for $\mathbb F_3^n$, thereby obtaining the correct form for the upper bound in the famous cap-set problem. …”
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    Article
  13. 2973
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    Forbidden intersection problems for families of linear maps by David Ellis, Guy Kindler, Noam Lifshitz

    Published 2023-12-01
    “…A central problem in extremal combinatorics is to determine the maximal size of a set system given constraints on the sizes of the sets in the system and on the sizes of their intersections. …”
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    Article
  15. 2975

    Additive energies on discrete cubes by Jaume de Dios Pont, Rachel Greenfeld, Paata Ivanisvili, Jos\'e Madrid

    Published 2023-09-01
    “…One definition of additive combinatorics is that it is the study of subsets of (usually Abelian) groups. …”
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    Article
  16. 2976

    Geometric rank of tensors and subrank of matrix multiplication by Swastik Kopparty, Guy Moshkovitz, Jeroen Zuiddam

    Published 2023-04-01
    “…Since this paper first appeared as a preprint, the notion of geometric rank has played an important role in a central problem of additive combinatorics, which is to relate analytic rank to partition rank (where the rank-1 tensors of degree $d$ are those of the form $UV$, where $U$ and $V$ depend on disjoint sets of variables). …”
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    Article
  17. 2977

    Quantitative bounds for the $U^4$-inverse theorem over low characteristic finite fields by Jonathan Tidor

    Published 2022-10-01
    “…The $U^k$ norms play an important role in additive combinatorics because they lead to a useful definition of quasirandomness for subsets of finite Abelian groups. …”
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    Article
  18. 2978

    Hypergraphs with infinitely many extremal constructions by Jianfeng Hou, Heng Li, Xizhi Liu, Dhruv Mubayi, Yixiao Zhang

    Published 2023-12-01
    “…This is one of the most famous open problems in extremal combinatorics. It is conjectured that the extremal density is 5/9, but a sign that the conjecture is hard is that if the conjecture is true, the example just presented is not _the_ extremal example, but merely _an_ extremal example, as it is now known that there is an infinite family of 3-uniform hypergraphs with no cliques of size 4 and with asymptotic density 5/9. …”
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    Article
  19. 2979

    Gowers norms for automatic sequences by Jakub Byszewski, Jakub Konieczny, Clemens Müllner

    Published 2023-05-01
    “…There are several situations in additive and extremal combinatorics where it is useful to decompose an object $X$ into a "structured" part $S(X)$ and a "quasirandom" part $Q(X)$. …”
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    Article
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