• Title, Summary, Keyword: Chow motives

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INTEGRAL CHOW MOTIVES OF THREEFOLDS WITH K-MOTIVES OF UNIT TYPE

  • Gorchinskiy, Sergey
    • Bulletin of the Korean Mathematical Society
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    • v.54 no.5
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    • pp.1827-1849
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    • 2017
  • We prove that if a smooth projective algebraic variety of dimension less or equal to three has a unit type integral K-motive, then its integral Chow motive is of Lefschetz type. As a consequence, the integral Chow motive is of Lefschetz type for a smooth projective variety of dimension less or equal to three that admits a full exceptional collection.

ON VOISIN'S CONJECTURE FOR ZERO-CYCLES ON HYPERKÄHLER VARIETIES

  • Laterveer, Robert
    • Journal of the Korean Mathematical Society
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    • v.54 no.6
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    • pp.1841-1851
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    • 2017
  • Motivated by the Bloch-Beilinson conjectures, Voisin has made a conjecture concerning zero-cycles on self-products of Calabi-Yau varieties. We reformulate Voisin's conjecture in the setting of $hyperk{\ddot{a}}hler$ varieties, and we prove this reformulated conjecture for one family of $hyperk{\ddot{a}}hler$ fourfolds.

Determinants of Customer Loyalty in the Context of Online Shopping: A Comparative Analysis of Internet Shopping and Mobile Shopping (온라인 쇼핑 상황에서 고객충성도의 결정요인: 인터넷 쇼핑과 모바일 쇼핑의 비교 분석)

  • Koh, Joon;Choi, Sujeong;An, Baicheng
    • The Journal of the Korea Contents Association
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    • v.15 no.11
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    • pp.486-500
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    • 2015
  • This study focuses on customer loyalty that explains how firms can maintain long-term relationship with customers, in the internet shopping and mobile shopping contexts. Specifically, this study examines the key determinants of customer loyalty from two perspectives: service quality and shopping value. Concerning service quality, previous studies have long argued that it is a starting point of building customer loyalty. Shopping value is a key variable in capturing consumers' shopping motives. In this study, we consider two types of shopping value: usefulness as utilitarian value and enjoyment as hedonic value. Moreover, this study examines whether the effects of service quality and shopping value on customer loyalty differ depending on internet and mobile shopping groups. To test the proposed hypotheses, we conducted multiple linear regression analysis and chow test with a total of 199 data collected on users who have experience in internet shopping and mobile shopping. The key findings are as follows: First, in the internet shopping group, customer loyalty depends on service quality (responsiveness and empathy) and usefulness, whereas in the mobile shopping, it only depends on enjoyment. Second, the impacts of service quality and shopping value on customer loyalty are different depending on internet shopping and mobile shopping. The results imply that e-tailors should develop differential methods suitable for internet shopping or mobile shopping to enhance customer loyalty.