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2821
Hypergraphs with infinitely many extremal constructions
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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2822
The Singularity of the <i>K</i><sub>4</sub> Homeomorphic Graph
Published 2024-12-01“…The singularity of graphs is of certain interest in graph theory and algebraic combinatorics. For positive integers <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>a</mi><mi>i</mi></msub><mo>≥</mo><mn>2</mn></mrow></semantics></math></inline-formula>, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>i</mi><mo>=</mo><mn>1</mn><mo>,</mo><mn>2</mn><mo>,</mo><mo>…</mo><mo>,</mo><mn>6</mn></mrow></semantics></math></inline-formula>. …”
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2823
Geometric rank of tensors and subrank of matrix multiplication
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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2824
Gowers norms for automatic sequences
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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2825
Failure of the trilinear operator space Grothendieck theorem
Published 2019-06-01“…Interestingly, and very appropriately for a paper in Discrete Analysis, the proof makes use of ideas from additive combinatorics. In particular, it makes use of a noncommutative version of the generalized von Neumann inequality. …”
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2826
Efficient arithmetic regularity and removal lemmas for induced bipartite patterns
Published 2019-04-01“…In addition to Haussler's packing lemma, a by now standard tool in the setting of bounded VC-dimension, the proof uses the celebrated Bogolyubov-Ruzsa lemma from additive combinatorics, which, in the context of a finite abelian group $G$ of bounded exponent, states that the iterated sum set $2B-2B$ of a set $B$ with small doubling contains a subgroup of $G$ of size at least a constant times $|B|$. …”
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2827
Punctured Low-Bias Codes Behave Like Random Linear Codes
Published 2024-06-01“…Another is to use an approach that is now very standard in probabilistic combinatorics but was much less standard at the time, which is to choose points of $A$ independently at random with a probability that ensures that the expected number of pairs of points at distance $cn$ is less than half the expected size of $A$, after which one can remove a point from each bad pair. …”
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2828
The splitting method and Poincare's theorem: (I) - the geometric part
Published 2002-11-01“…At the price of a small extension of the definition of a combinatoric tiling, which we call quasi-combinatoric, we show that all tessellations with the above numbers p, q and r are quasi-combinatoric for all possible values of p, q and r, the case when p=2 and q=3 being included. …”
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2829
Robot's hand and expansions in non-integer bases
Published 2014-06-01“…Combinatorics…”
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2830
Representation type of Hecke algebras of type A
Published 2002“…In this paper we provide a complete classification of the representation type for the blocks for the Hecke algebra of type A, stated in terms of combinatorical data. The computation of the complexity of Young modules is a key component in the proof of this classification result.…”
Journal article -
2831
Notes on the Hodge conjecture for Fermat varieties
Published 2021-01-01“…We review a combinatoric approach to the Hodge conjecture for Fermat varieties and announce new cases where the conjecture is true. …”
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2832
Search for charmless hadronic decays of B mesons with the SLAC SLD detector
Published 2000“…The precise tracking capabilities of the SLD detector provided for the efficient reduction of combinatoric backgrounds, yielding the most precise available limits for ten of these modes.…”
Journal article -
2833
Multiword expressions : a pain in the neck for NLP
Published 2011“…The various kinds of multiword expressions should be analyzed in distinct ways, including listing “words with spaces”, hierarchically organized lexicons, restricted combinatoric rules, lexical selection, “idiomatic constructions” and simple statistical affinity. …”
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Conference Paper -
2834
Methods for Parallelizing Search Paths in Phrasing
Published 2004“…Many search problems are commonly solved with combinatoric algorithms that unnecessarily duplicate and serialize work at considerable computational expense. …”
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2835
Matera in Many Dimensions
Published 2019-01-01“…We reach this objective by using a combinatoric puzzle and suitable story telling.…”
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2836
The splitting method and Poincare's theorem: (II) - matrix, polynomial and language
Published 2003-04-01“…This new part is also based on the definition of a combinatoric tiling which was detailed in the previous issue. …”
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2837
The effect of Al on the corrosion resistance of binary Mg-Al solid solutions: Combining in-situ electrochemistry with combinatorial thin films
Published 2024-07-01“…These spatially resolving characterization techniques are employed along the Al concentration gradient of the combinatorically grown thin films enabling efficient screening of the Al concentration dependent electrochemical corrosion behaviour. …”
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2838
Conversion in poetic communication of Afanasy Fet’s lyric poetry
Published 2018-04-01“…In conclusion, the poetic discourse combinatorically connects different facets of language realization which forms semantic variety of lyrics and unordinary nature of the reader's reception.…”
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2839
Navigability, Walkability, and Perspicacity Associated with Canonical Ensembles of Walks in Finite Connected Undirected Graphs—Toward Information Graph Theory
Published 2023-06-01“…The application of information theory methods to problems about graphs, in contrast to geometric, combinatoric, algorithmic, and algebraic approaches, can be called information graph theory. …”
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2840
Interaction and Depth against Nondeterminism in Proof Search
Published 2014-05-01“…Deep inference provides more freedom in the design of deductive systems for different logics and a rich combinatoric analysis of proofs. In particular, construction of exponentially shorter analytic proofs becomes possible, however with the cost of a greater nondeterminism than in the sequent calculus. …”
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