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  1. Infinite order rationally slice knots

    A knot is a smooth embedding of an oriented circle into the three-sphere, and two knots are concordant if they cobound a smoothly embedded annulus in the three-sphere times the interval. Concordance gives an equivalence relation, and the se...
    Category수학강연회 소속카이스트 수리과학과 강연자박정환
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  2. Random matrices and operator algebras

    Free probability is a young mathematical theory that started in the theory of operator algebras. One of the main features of free probability theory is its connection with random matrices. Indeed, free probability provides operator algebrai...
    Category수학강연회 소속서울대학교 수학교육과 강연자윤상균
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  3. Symplectic topology and mirror symmetry of partial flag manifolds

    Soon after Gromov’s applications of pseudo-holomorphic curves to symplectic topology, Floer invented an infinite-dimensional Morse theory by analyzing moduli spaces of pseudo-holomorphic curves to make substantial progress on Arnold&r...
    Category수학강연회 소속부산대학교 수학과 강연자김유식
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  4. 돈은 어떻게 우리 삶에 돈며들었는가? (불확실성 시대에 부는 선형적으로 증가하는가?)

    1. 금본위제, 달러, 비트코인 등 돈의 흐름으로 보는 세계사 2. 사람은 어떻게 생각하고 행동하는가 ? (행동경제학, 비선형성) 3. 돈에 대한 생각, 행동, 습관을 바꾸어보자. (부자들은 무엇이 다른가 ? 지금부터 준비해보자.) 4. 주식, 부동산 등 자산관리 [...
    Category수학강연회 소속농협은행 강연자홍순옥
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  5. <학부생을 위한 ɛ 강연> Mathematics and music: Pythagoras, Bach, Fibonacci and AI

    In this talk, I will introduce the audience to the original beauty that leads to exploring the mathematical elements in music. I will cover the following topics on the connection between music and mathematics. - Harmonics & equations - ...
    Category수학강연회 소속피아니스트 강연자임현정
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  6. Topological surgery through singularity in mean curvature flow

    The mean curvature flow is an evolution of hypersurfaces satisfying a geometric heat equation. The flow naturally develops singularities and changes the topology of the hypersurfaces at singularities, Therefore, one can study topological pr...
    Category수학강연회 소속고등과학원 강연자최경수
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  7. Heavy-tailed large deviations and deep learning's generalization mystery

    Abstract: While the typical behaviors of stochastic systems are often deceptively oblivious to the tail distributions of the underlying uncertainties, the ways rare events arise are vastly different depending on whether the underlying tail ...
    Category수학강연회 소속Northwestern University 강연자이창한
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  8. Diophantine equations and moduli spaces with nonlinear symmetry

    A fundamental result in number theory is that, under certain linear actions of arithmetic groups on homogeneous varieties, the integral points of the varieties decompose into finitely many orbits. For a classical example, the set of integra...
    Category수학강연회 소속서울대학교 강연자황준호
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  9. <정년퇴임 기념강연> Hardy, Beurling, and invariant subspaces

    The invariant subspace problem is one of the longstanding open problem in the field of functional analysis and operator theory. It is due to J. von Neumann (in 1932) and is stated as: Does every operator have a nontrivial invariant subspace...
    Category수학강연회 소속서울대학교 강연자이우영
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  10. <정년퇴임 기념강연> The Elements of Euclid

    The thirteen books "Elements" were written or collected by Euclid of Alexandria about 300 BCE. Many think that "Elements" is the most important example of deductive mathematics. In fact, the Common Notions and the Postulates of Elements are...
    Category수학강연회 소속서울대/광주과학기술원 강연자김홍종
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  11. On circle diffeomorphism groups

    For each natural number k, the C^k diffeomorphisms of the circle form a group with function compositions. This definition even extends to real numbers k no less than one by Hölder continuity. We survey algebraic properties of this grou...
    Category수학강연회 소속고등과학원 강연자김상현
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  12. <학부생을 위한 ɛ 강연> Symplectic geometry and the three-body problem

    We describe some of the history of the three-body problem and how it lead to symplectic geometry. We start by sketching Poincare’s prize-winning work, and discuss how it lead to the birth of the fields of dynamical systems and symplec...
    Category수학강연회 소속서울대학교 강연자Otto van Koert
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  13. WGAN with an Infinitely wide generator has no spurious stationary points

    Generative adversarial networks (GAN) are a widely used class of deep generative models, but their minimax training dynamics are not understood very well. In this work, we show that GANs with a 2-layer infinite-width generator and a 2-layer...
    Category수학강연회 소속서울대학교 강연자류경석
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  14. Free boundary problems arising from mathematical finance

    Many problems in financial mathematics are closely related to the stochastic optimization problem because the optimal decision must be made under the uncertainty. In particular, optimal stopping, singular control, and optimal switching prob...
    Category수학강연회 소속경희대학교 강연자전준기
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  15. One and Two dimensional Coulomb Systems

    Coulomb Gases are point processes consisting of particles whose pair interaction is governed by the Coulomb potential. There is also an external potential which confines the particles to a region. Wigner introduced this toy model for the Gi...
    Category수학강연회 소속카이스트 강연자폴정
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  16. Ill-posedness for incompressible Euler equations at critical regularit

    We obtain a quantitative and robust proof that incompressible fluid models are strongly ill-posed in critical Sobolev spaces, in the sense that norm inflation and even nonexistence occur for critical initial data. We then show how to use th...
    Category수학강연회 소속서울대학교 강연자정인지
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  17. <정년퇴임 기념강연> 수학의 시대정신(?)

    일각에서 혁명이라고 칭할 정도로 4차 산업은 미래 사회를 송두리째 변혁시킬 것으로 예견되고 있다. 이러한 대변혁의 시기를 맞아 우리나라 수학의 미래를 위해, 우리 수학계가 처한 위기와 기회를 파악하고, 나아갈 방향에 대한 논의를 시작해 보고자 한다.
    Category수학강연회 소속서울대학교 수리과학부 강연자김명환
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  18. <학부생을 위한 ɛ 강연> Mathematical Aspects of Machine Learning and Deep Learning AI

    인공지능은 지난 60년 동안 큰 변화를 거쳤다. 초기의 논리기호기반 연역적 지능 시스템 패러다임에서 현재의 데이터기반 귀납적 지능 시스템 패러다임으로 전환되었다. 이제는 인공지능을 개발하기 위해서 사람이 더 이상 직접 프로그래밍하지 않는다. 사람은...
    Category수학강연회 소속서울대학교 컴퓨터공학부 강연자장병탁
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  19. Lie group actions on symplectic manifolds

    For a given compact Lie group G, classifying all manifolds equipped with G-actions is one of the most fundamental and important problems in differential geometry. In this talk, We will discuss the problem in the symplectic category and expl...
    Category수학강연회 소속성균관대학교 수학교육과 강연자조윤형
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  20. Mathematics, Biology and Mathematical Biology

    The 21st century is the age of life science. Two issues in the life sciences are that humans live long, healthy lives and maintain a steady state of the earth's ecosystems despite disturbances. In this talk, we will look at how mathematics i...
    Category수학강연회 소속부산대학교 수학과 강연자정일효
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