Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Jae-Hyouk Lee"'
Publikováno v:
Mathematics, Vol 9, Iss 1, p 102 (2021)
Symmetric varieties are normal equivarient open embeddings of symmetric homogeneous spaces, and they are interesting examples of spherical varieties. We prove that all smooth Fano symmetric varieties with Picard number one admit Kähler–Einstein me
Externí odkaz:
https://doaj.org/article/02975d6e4f28409c905356fb7251dd91
Autor:
Jae-Hyouk Lee, YongJoo Shin
Publikováno v:
Mathematics, Vol 8, Iss 6, p 867 (2020)
We work on special divisor classes on blow-ups F p , r of Hirzebruch surfaces over the field of complex numbers, and extend fundamental properties of special divisor classes on del Pezzo surfaces parallel to analogous ones on surfaces F p , r . We al
Externí odkaz:
https://doaj.org/article/d4d1c59a0b4e48eeaab73413d02642c8
Autor:
Jae-Hyouk Lee
Publikováno v:
Symmetry, Vol 12, Iss 2, p 280 (2020)
In this article, we study the non-degeneracy of 2-forms (skew symmetric ( 0 , 2 ) -tensor) α along the Pfaffian of α . We consider a symplectic vector space V with a non-degenerate skew symmetric ( 0 , 2 ) -tensor ω , and derive various properties
Externí odkaz:
https://doaj.org/article/43b0d432dcda4b7e915b8278d4b2e811
Autor:
Adrian Clingher, Jae-Hyouk Lee
Publikováno v:
Symmetry, Vol 10, Iss 10, p 443 (2018)
We consider certain E n -type root lattices embedded within the standard Lorentzian lattice Z n + 1 ( 3 ≤ n ≤ 8 ) and study their discrete geometry from the point of view of del Pezzo surface geometry. The lattice Z n + 1 decomposes as a disjoint
Externí odkaz:
https://doaj.org/article/b60a471e116941a58710ac58fccdbef9
Autor:
Jihyun Choi, Jae-Hyouk Lee
Publikováno v:
Symmetry, Vol 10, Iss 8, p 326 (2018)
In this article, we have an explicit description of the binary isosahedral group as a 600-cell. We introduce a method to construct binary polyhedral groups as a subset of quaternions H via spin map of SO(3). In addition, we show that the binary icosa
Externí odkaz:
https://doaj.org/article/163b15fee29443aa9c9b619e4241421c
Autor:
Jae-Hyouk Lee, YongJoo Shin
Publikováno v:
Symmetry, Vol 8, Iss 4, p 27 (2016)
In this article, we introduce special divisors (root, line, ruling, exceptional system and rational quartic) in smooth rational surfaces and study their correspondences to subpolytopes in Gosset polytopes k 21 . We also show that the sets of rulings
Externí odkaz:
https://doaj.org/article/04ac0908d9f24fceb72f48433f26c619
We give a classification of Gorenstein Fano bi-equivariant compactifications of semisimple complex Lie groups with rank two, and determine which of them are equivariant K-stable and admit (singular) K\"{a}hler-Einstein metrics. As a consequence, we o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::110edd55c31a1cd224253c852aa4142a
http://arxiv.org/abs/2203.11058
http://arxiv.org/abs/2203.11058
Publikováno v:
Mathematics
Volume 9
Issue 1
Mathematics, Vol 9, Iss 102, p 102 (2021)
Volume 9
Issue 1
Mathematics, Vol 9, Iss 102, p 102 (2021)
Symmetric varieties are normal equivarient open embeddings of symmetric homogeneous spaces, and they are interesting examples of spherical varieties. We prove that all smooth Fano symmetric varieties with Picard number one admit Kä
hler&ndas
hler&ndas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c149d56adcfc70354df136d2460bc5c
Publikováno v:
Czechoslovak Mathematical Journal. 67:397-415
We describe the relation between quasi-minuscule representations, polytopes and Weyl group orbits in Picard lattices of rational surfaces. As an application, to each quasi-minuscule representation we attach a class of rational surfaces, and realize s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f743da5f662ba9cadadf88ebd16097b
https://doi.org/10.21136/cmj.2017.0676-15
https://doi.org/10.21136/cmj.2017.0676-15
Autor:
Yong Joo Shin, Jae Hyouk Lee
Publikováno v:
Mathematics
Volume 8
Issue 6
Mathematics, Vol 8, Iss 867, p 867 (2020)
Volume 8
Issue 6
Mathematics, Vol 8, Iss 867, p 867 (2020)
We work on special divisor classes on blow-ups F p , r of Hirzebruch surfaces over the field of complex numbers, and extend fundamental properties of special divisor classes on del Pezzo surfaces parallel to analogous ones on surfaces F p , r . We al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fde4333ac88e318523c73196e20fe12b
https://doi.org/10.3390/math8060867
https://doi.org/10.3390/math8060867