Articles with "isomorphism" as a keyword



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A Time-Based Solution for the Graph Isomorphism Problem

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Published in 2020 at "Circuits, Systems, and Signal Processing"

DOI: 10.1007/s00034-019-01279-8

Abstract: This paper is devoted to the problem of isomorphism in graphs and proposes a method based on time response of a differential equation. First it is shown that the solution of a differential equation obtaining… read more here.

Keywords: differential equation; matrix; time; solution ... See more keywords

Towards an Isomorphism Dichotomy for Hereditary Graph Classes

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Published in 2017 at "Theory of Computing Systems"

DOI: 10.1007/s00224-017-9775-8

Abstract: In this paper we resolve the complexity of the isomorphism problem on all but finitely many of the graph classes characterized by two forbidden induced subgraphs. To this end we develop new techniques applicable for… read more here.

Keywords: isomorphism problem; color valence; graph classes; graph ... See more keywords

On a homotopy version of the Duflo isomorphism

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Published in 2019 at "Letters in Mathematical Physics"

DOI: 10.1007/s11005-019-01223-6

Abstract: For a finite-dimensional Lie algebra $$\mathfrak {g}$$ g , the Duflo map $$S\mathfrak {g}\rightarrow U\mathfrak {g}$$ S g → U g defines an isomorphism of $$\mathfrak {g}$$ g -modules. On $$\mathfrak {g}$$ g -invariant elements,… read more here.

Keywords: mathfrak; isomorphism; homotopy version; version duflo ... See more keywords

Noncommutative enhancements of contractions

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Published in 2019 at "Advances in Mathematics"

DOI: 10.1016/j.aim.2018.11.019

Abstract: Given a contraction of a variety X to a base Y, we enhance the locus in Y over which the contraction is not an isomorphism with a certain sheaf of noncommutative rings D, under mild… read more here.

Keywords: enhancements contractions; isomorphism; locus; noncommutative enhancements ... See more keywords

Born to be similar? Global isomorphism and the emergence of latecomer business schools

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Published in 2021 at "International Business Review"

DOI: 10.1016/j.ibusrev.2021.101863

Abstract: Abstract By building on insights from institutional isomorphism, this paper investigates the development paths of latecomer business schools in Hong Kong, (South) Korea, Singapore, and Taiwan. The global isomorphic pressure prevalent in higher education (e.g.… read more here.

Keywords: isomorphism emergence; isomorphism; global isomorphism; business schools ... See more keywords

Knowledge transfer and isomorphism in franchise networks

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Published in 2017 at "International Journal of Hospitality Management"

DOI: 10.1016/j.ijhm.2016.11.012

Abstract: Abstract This study draws on institutional and organisational learning theories to evaluate how knowledge transfer (KT) practices contribute to the development of isomorphism in franchise networks. It also analyses how the characteristics of franchise partners… read more here.

Keywords: isomorphism franchise; knowledge transfer; isomorphism; franchise networks ... See more keywords
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A conjectural Peterson isomorphism in K-theory

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Published in 2018 at "Journal of Algebra"

DOI: 10.1016/j.jalgebra.2018.07.029

Abstract: We state a precise conjectural isomorphism between localizations of the equivariant quantum K-theory ring of a flag variety and the equivariant K-homology ring of the affine Grassmannian, in particular relating their Schubert bases and structure… read more here.

Keywords: isomorphism theory; isomorphism; conjectural peterson; peterson isomorphism ... See more keywords

A novel algorithm for the isomorphism detection of various kinematic chains using topological index

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Published in 2020 at "Mechanism and Machine Theory"

DOI: 10.1016/j.mechmachtheory.2019.103740

Abstract: Abstract For mechanism design, the isomorphic kinematic chains (KCs) should be deleted to improve design efficiency. At present, most methods of isomorphism detection involve complex concepts and comparison of intermediate parameters. Moreover, when the number… read more here.

Keywords: topological index; isomorphism; kinematic chains; isomorphism detection ... See more keywords

When T is an irrational rotation, and are Bernoulli: explicit isomorphisms

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Published in 2023 at "Ergodic Theory and Dynamical Systems"

DOI: 10.1017/etds.2023.35

Abstract: Let $\theta $ be an irrational real number. The map $T_\theta : y \mapsto (y+\theta ) \,\mod \!\!\: 1$ from the unit interval $\mathbf {I} = [0,1[$ (endowed with the Lebesgue measure) to itself is… read more here.

Keywords: map; bernoulli; isomorphism; irrational rotation ... See more keywords

Isomorphism-inspired theorising about optionality and variation: no empirical support from English grammar

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Published in 2025 at "English Language and Linguistics"

DOI: 10.1017/s1360674325000097

Abstract: Language variation (specifically: optionality between different ways of saying the same thing, as in check out the places vs check the places out) tends to be considered abnormal, suboptimal, short-lived, dysfunctional and needlessly complex, especially… read more here.

Keywords: isomorphism; variation; optionality; language ... See more keywords

Quantifying the non-isomorphism of global urban road networks using GNNs and graph kernels

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Published in 2025 at "Scientific Reports"

DOI: 10.1038/s41598-025-90839-x

Abstract: A novel concept of quantifying graph non-isomorphism is introduced to measure structural differences between graphs, and thus overcoming the strict limitations of traditional graph isomorphism tests. This paper trains Graph Neural Networks (GNNs) and graph… read more here.

Keywords: isomorphism; non isomorphism; gnns graph; road networks ... See more keywords