Search Results - "Watanabe, Kiwamu"

Refine Results
  1. 1

    Positivity of the second exterior power of the tangent bundles by Watanabe, Kiwamu

    Published in Advances in mathematics (New York. 1965) (16-07-2021)
    “…Let X be a smooth complex projective variety with nef ⋀2TX and dim⁡X≥3. We prove that, up to a finite étale cover X˜→X, the Albanese map X˜→Alb(X˜) is a…”
    Get full text
    Journal Article
  2. 2

    Fano varieties of middle pseudoindex by Watanabe, Kiwamu

    Published in Manuscripta mathematica (01-11-2024)
    “…Let X be a complex smooth Fano variety of dimension n . In this paper, we give a classification of such X when the pseudoindex is equal to dim X + 1 2 and the…”
    Get full text
    Journal Article
  3. 3

    Fano manifolds of coindex three admitting nef tangent bundle by Watanabe, Kiwamu

    Published in Geometriae dedicata (01-02-2021)
    “…We prove that any Fano manifold of coindex three admitting nef tangent bundle is homogeneous…”
    Get full text
    Journal Article
  4. 4

    Lengths of chains of minimal rational curves on Fano manifolds by Watanabe, Kiwamu

    Published in Journal of algebra (2011)
    “…In this paper, we consider a natural question how many minimal rational curves are needed to join two general points on a Fano manifold X of Picard number 1…”
    Get full text
    Journal Article
  5. 5
  6. 6

    A bound of lengths of chains of minimal rational curves on Fano manifolds of Picard number 1 by Watanabe, Kiwamu

    Published in Journal of algebra (01-07-2011)
    “…In this paper, we investigate the minimal length of chains of minimal rational curves needed to join two general points on a Fano manifold of Picard number 1…”
    Get full text
    Journal Article
  7. 7
  8. 8

    The participation of insulin-like growth factor-binding protein 3 released by astrocytes in the pathology of Alzheimer's disease by Watanabe, Kiwamu, Uemura, Kengo, Asada, Megumi, Maesako, Masato, Akiyama, Haruhiko, Shimohama, Shun, Takahashi, Ryosuke, Kinoshita, Ayae

    Published in Molecular brain (04-12-2015)
    “…Alzheimer's disease (AD) is characterized by senile plaques, extracellular deposits composed primarily of amyloid-beta (Aβ), and neurofibrillary tangles, which…”
    Get full text
    Journal Article
  9. 9

    Characterizing the homogeneous variety by Occhetta, Gianluca, Solá Conde, Luis E., Watanabe, Kiwamu

    Published in Mathematische Nachrichten (01-10-2018)
    “…In this paper we consider the 15‐dimensional rational homogeneous variety of Picard number one F 4 (4), and provide a characterization of it in terms of its…”
    Get full text
    Journal Article
  10. 10

    rt-PA with Antithrombotic Therapies in a Case with Capsular Warning Syndrome by Fuseya, Yasuhiro, Kawamura, Miyuki, Matsuda, Eri, Takada, Kozue, Watanabe, Kiwamu, Fujitake, Junko, Nakaya, Yoshifumi

    Published in Internal Medicine (01-01-2017)
    “…We herein report a case of capsular warning syndrome (CWS) that was successfully treated with recombinant tissue plasminogen activator (rt-PA). A 70-year-old…”
    Get full text
    Journal Article
  11. 11
  12. 12

    Classification of polarized manifolds admitting homogeneous varieties as ample divisors by Watanabe, Kiwamu

    Published in Mathematische annalen (01-11-2008)
    “…We give a complete classification of smooth polarized varieties ( X , L ) such that the linear system | L | has a homogeneous member A …”
    Get full text
    Journal Article
  13. 13

    A characterization of symplectic Grassmannians by Occhetta, Gianluca, Solá Conde, Luis E., Watanabe, Kiwamu

    Published in Mathematische Zeitschrift (01-08-2017)
    “…We provide a characterization of symplectic Grassmannians in terms of their varieties of minimal rational tangents…”
    Get full text
    Journal Article
  14. 14

    Uniform families of minimal rational curves on Fano manifolds by Occhetta, Gianluca, Solá Conde, Luis E., Watanabe, Kiwamu

    Published in Revista matemática complutense (01-05-2016)
    “…It is a well known fact that families of minimal rational curves on rational homogeneous manifolds of Picard number one are uniform, in the sense that the…”
    Get full text
    Journal Article
  15. 15

    Gain of function by phosphorylation in Presenilin 1-mediated regulation of insulin signaling by Maesako, Masato, Uemura, Kengo, Kuzuya, Akira, Sasaki, Kazuki, Asada, Megumi, Watanabe, Kiwamu, Ando, Koichi, Kubota, Masakazu, Akiyama, Haruhiko, Takahashi, Ryosuke, Kihara, Takeshi, Shimohama, Shun, Kinoshita, Ayae

    Published in Journal of neurochemistry (01-06-2012)
    “…J. Neurochem. (2012) 121, 964–973. We have recently reported that Presenilin 1 (PS1), a causative gene of familial Alzheimer disease (AD), down‐regulates the…”
    Get full text
    Journal Article
  16. 16

    Fano 4-folds with nef tangent bundle in positive characteristic by Takahashi, Yuta, Watanabe, Kiwamu

    Published in Communications in algebra (02-07-2024)
    “…In characteristic 0, the Campana-Peternell conjecture claims that the only smooth Fano variety with nef tangent bundle should be homogeneous. In this paper, we…”
    Get full text
    Journal Article
  17. 17

    Fano 5-folds with nef tangent bundles and Picard numbers greater than one by Watanabe, Kiwamu

    Published in Mathematische Zeitschrift (01-02-2014)
    “…We prove that smooth Fano 5-folds with nef tangent bundles and Picard numbers greater than one are rational homogeneous manifolds…”
    Get full text
    Journal Article
  18. 18

    Low-dimensional projective manifolds with nef tangent bundle in positive characteristic by Watanabe, Kiwamu

    Published in Communications in algebra (02-09-2017)
    “…We classify smooth projective varieties with nef tangent bundle in positive characteristic, when the varieties are surfaces or Fano 3-folds. Furthermore, some…”
    Get full text
    Journal Article
  19. 19

    P1-bundles admitting another smooth morphism of relative dimension one by Watanabe, Kiwamu

    Published in Journal of algebra (15-09-2014)
    “…We give the complete classification of P1-bundles over projective manifolds of Picard number one each of which admit another smooth morphism of relative…”
    Get full text
    Journal Article
  20. 20