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Fukaya category for Landau-Ginzburg orbifolds and Berglund-Hübsch conjecture for invertible curve singularities : 란다우-긴즈버그 오비폴드의 푸카야 카테고리와 곡선 가역 특이점의 버글룬드-흅스 추측

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dc.contributor.advisor조철현-
dc.contributor.author좌동욱-
dc.date.accessioned2020-10-13T04:01:36Z-
dc.date.available2020-10-13T04:01:36Z-
dc.date.issued2020-
dc.identifier.other000000162945-
dc.identifier.urihttps://hdl.handle.net/10371/170694-
dc.identifier.urihttp://dcollection.snu.ac.kr/common/orgView/000000162945ko_KR
dc.description학위논문 (박사) -- 서울대학교 대학원 : 자연과학대학 수리과학부, 2020. 8. 조철현.-
dc.description.abstractFrom a fixed cohomology class $\Gamma \in SH^\bullet(M)$ of a Liouville manifold $M$, we construct a new $\AI$ category denoted by $\CG$ on which the quantum cap action of $\Gamma: CW^\bullet(L,L) \to CW^\bullet(L,L)$ vanishes homotopically.

With this construction on one hand, we consider a symplectic Landau - Ginzburg model $(W, G)$ defined by a weighted homogeneous polynomial $W$ and its symmetry group $G$. From wrapped Fukaya category and a monodromy information of the Milnor fiber, we construct a new Fukaya category $\cF(W, G)$ for each pair $(W, G)$ on which the monodromy action vanishes. It is a symplectic analogue of the variation operator in singularity theory.

We also show that the mirror of the monodromy action is a restriction of a mirror Landau-Ginzburg model to a certain hypersurface. As an application, we prove Berglund-H\"ubsch homological mirror symmetry for all invertible curve singularities.
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dc.description.abstract이 논문에서는 리우빌 다양체 $M$의 사교 코호몰로지 군의 원소 $\Gamma \in SH^\bullet(M)$ 가 주어져 있을 때, $\Gamma$ 의 양자 곱 작용 (quatum cap action) $\Gamma: CW^\bullet(L,L) \to CW^\bullet(L,L)$ 이 호모토피적으로 사라지는 새로운 호모토피 결합 범주 ($\AI$-category) $\CG$ 를 건설하고자 한다.

이 새로운 건설법을 바탕으로 하여 가중 동차 다항식 $W$과 그것의 대칭군 $G$ 로 이루어진 사교 란다우-긴즈버그(Landau-Ginzburg) 모델 $(W, G)$ 을 만든다. 밀너 올(MIlnor fiber) 의 감긴 푸카야 범주 (wrapped Fukya category) 와 그것에 작용하는 모노드로미 작용 (monodromy action) 을 사용하여, 모노드로미 작용이 사라지는 새로운 범주 $\cF(W, G)$를 만든다. 이것은 고전적인 특이점 이론의 변분 연산자(variation operator)의 사교기하적 유추로 간주할 수 있다.

이에 더해, 모노드로미 작용의 거울 현상이 거울 란다우-긴즈버그 모델을 특정한 초곡면에 제한시키는 것임을 보인다. 그것의 응용으로, 모든 가역 곡선 특이점에 대해 버글룬드-흅스 추측을 증명한다.
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dc.description.tableofcontents1 Introduction 1
2 Basic Floer theory 5
2.1 Liouville manifold with cylindrical end 5
2.2 Degree and index of Hamiltonian orbits and chords 7
2.3 Moduli space of pseudo-holomorphic curves 10
2.4 Wrapped Fukaya category 14
2.5 Symplectic cohomology and closed-open map 15
3 New A1 category C¡ 17
3.1 Popsicles with interior markings 17
3.2 Compactification 19
3.3 Cohomology category 28
3.4 Example: M2-operation 31
4 Algebro-geometric counterpart 34
4.1 Restricting to a hypersurface in DbCoh 34
4.2 Restricting to a graph hypersurface inMatrix factorizations 37
5 Equivariant topology ofMilnor fiber for invertible curve singularities 41
5.1 Topology of aMilnor fiber 41
5.2 Orbifold covering 44
5.3 Equivariant tessellation ofMilnor fibers 49
6 Equivariant Floer theory of aMilnor fiber 53
6.1 Hamiltonian 53
6.2 ­- and H1-grading 54
6.3 Orbifold wrapped Fukaya category 56
6.4 Orbifold symplectic cohomology 59
6.5 Floer algebra of Seidels immersed Lagrangian L and its deformation 62
6.6 Localized mirror functor toMatrix factorization category 64
7 Homological mirror symmetry forMilnor fibers of invertible curve singularity 66
7.1 Fermat cases 67
7.2 Chain cases 73
7.3 Loop cases 78
8 New Fukaya category for Landau-Ginzburg orbifolds 82
8.1 Preliminaries 82
8.2 Monodromy, Reeb orbit, and C¡W 84
9 Berglund-Hübsch HMS for curve singularity 88
9.1 Computation of ¡W 90
9.2 Mirror of the Monodromy action: Restriction of LG model to a hypersurface 93
9.3 Berglund-Hübsch mirror symmetry 98
Abstract (in Korean) 106
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dc.language.isoeng-
dc.publisher서울대학교 대학원-
dc.subjectLagrangian Floer theory-
dc.subjectMirror symmetry-
dc.subjectOrbifold-
dc.subjectInvertible polynomials-
dc.subjectMatrix factorization-
dc.subject라그랑지언 플로어 이론-
dc.subject거울대칭-
dc.subject오비폴드-
dc.subject가역 다항식-
dc.subject행렬 인수 분해-
dc.subject.ddc510-
dc.titleFukaya category for Landau-Ginzburg orbifolds and Berglund-Hübsch conjecture for invertible curve singularities-
dc.title.alternative란다우-긴즈버그 오비폴드의 푸카야 카테고리와 곡선 가역 특이점의 버글룬드-흅스 추측-
dc.typeThesis-
dc.typeDissertation-
dc.contributor.department자연과학대학 수리과학부-
dc.description.degreeDoctor-
dc.date.awarded2020-08-
dc.identifier.uciI804:11032-000000162945-
dc.identifier.holdings000000000043▲000000000048▲000000162945▲-
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