Results 1 to 10 of about 117,530 (117)
Amine‐Catalyzed Copper‐Mediated C−H Sulfonylation of Benzaldehydes via a Transient Imine Directing Group** [PDF]
Angewandte Chemie - International Edition, 2022 Joe I Higham, James A Bull
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A Transient‐Directing‐Group Strategy Enables Enantioselective Reductive Heck Hydroarylation of Alkenes [PDF]
Angewandte Chemie - International Edition, 2020 Ziqi Li +2 more
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A Simple and Versatile Amide Directing Group for C−H Functionalizations [PDF]
Angewandte Chemie - International Edition, 2016 Jin-Quan Yu
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Grouping with Directed Relationships [PDF]
, 2001 Grouping is a global partitioning process that integrates local cues distributed over the entire image. We identify four types of pairwise relationships, attraction and repulsion, each of which can be symmetric or asymmetric. We represent these relationships with two directed graphs.
Stella X. Yu, Jianbo Shi
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Set-direct factorizations of groups [PDF]
Journal of Algebra, 2018 referee comments included, 19 ...
Levy, Dan, Maróti, Attila
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A directed $d$-group that is not a group of divisibility [PDF]
Czechoslovak Mathematical Journal, 1984 The reviewer [Czech. Math. J. 32(107), 77-89 (1982; Zbl 0499.06013)] asked if there exists a directed ordered abelian group which admits a multivalued addition \(\oplus\) satisfying the axioms of d-groups but which is not a group of divisibility of an integral domain. In this note the author constructs such an example.
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Grouping principles in direct competition
Vision Research, 2013 We (1) introduce a primed flanker task as an objective method to measure perceptual grouping, and (2) use it to directly compare the efficiency of different grouping cues in rapid visuomotor processing. In two experiments, centrally presented primes were succeeded by flanking targets with varying stimulus-onset asynchronies (SOAs).
Schmidt, Filipp, Schmidt, Thomas
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Sofic groups and direct finiteness
Journal of Algebra, 2004 We construct an analogue of Neumann's affiliated algebras for sofic group algebras over arbitrary fields. Consequently, we settle Kaplansky's direct finiteness conjecture for sofic groups.
Elek, Gábor, Szabó, Endre
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The Subgroups of Direct Products of Surface Groups
Geometriae Dedicata, 2002 A surface group is the fundamental group of a connected 2-manifold; such a group is either free (of finite or countably infinite rank) or isomorphic to the fundamental group of a closed 2-manifold. Generalizing results for subgroups of direct products of free groups (in particular of \textit{G. Baumslag} and \textit{J. E. Roseblade} [J. Lond. Math. Soc.
Bridson, M +3 more
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Sigma invariants of direct products of groups
Groups, Geometry, and Dynamics, 2010 The Product Conjecture for the homological Bieri–Neumann–Strebel–Renz invariants is proved over a field. Under certain hypotheses the Product Conjecture is shown to also hold over ℤ , even though D. Schütz has recently shown that the Conjecture is false in general over
Bieri, Robert, Geoghegan, Ross
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