• 제목/요약/키워드: Complex line bundles

검색결과 10건 처리시간 0.03초

PROPER HOLOMORPHIC MAPPINGS, POSITIVITY CONDITIONS, AND ISOMETRIC IMBEDDING

  • D'Angelo, John P.
    • 대한수학회지
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    • 제40권3호
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    • pp.341-371
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    • 2003
  • This article discusses in detail how the study of proper holomorphic rational mappings between balls in different dimensions relates to positivity conditions and to isometric imbedding of holomorphic bundles. The first chapter discusses rational proper mappings between balls; the second chapter discusses seven distinct positivity conditions for real-valued polynomials in several complex variables; the third chapter reveals how these issues relate to an isometric imbedding theorem for holomorphic vector bundles proved by the author and Catlin.

원 위에서의 Nontrivial Complex Equivariant Vector Bundle (Nontrivial Complex Equivariant Vector Bundles over $S^1$)

  • 김성숙
    • 자연과학논문집
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    • 제10권1호
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    • pp.13-16
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    • 1998
  • 원 위에서의 모든 복소 vector bundle은 line bundle로 나누어지며 첫째 Chern class는 복소 line bundle을 분류한다. 이것은 원위에서의 모든 복소 vector bundle은 trivial 하다는 것을 의미한다. 이 논문에서는 군작용이 있을 경우에는 원위에서의 복소 vector bundle중에 trivial하지 않는 bundle이 존재함을 보였다.

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AVERAGE ENTROPY AND ASYMPTOTICS

  • Tatyana Barron;Manimugdha Saikia
    • 대한수학회지
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    • 제61권1호
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    • pp.91-107
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    • 2024
  • We determine the N → ∞ asymptotics of the expected value of entanglement entropy for pure states in H1,N ⊗ H2,N, where H1,N and H2,N are the spaces of holomorphic sections of the N-th tensor powers of hermitian ample line bundles on compact complex manifolds.

HEISENBERG GROUPS - A UNIFYING STRUCTURE OF SIGNAL THEORY, HOLOGRAPHY AND QUANTUM INFORMATION THEORY

  • Binz, Ernst;Pods, Sonja;Schempp, Walter
    • Journal of applied mathematics & informatics
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    • 제11권1_2호
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    • pp.1-57
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    • 2003
  • Vector fields in three-space admit bundles of internal variables such as a Heisenberg algebra bundle. Information transmission along field lines of vector fields is described by a wave linked to the Schrodinger representation in the realm of time-frequency analysis. The preservation of local information causes geometric optics and a quantization scheme. A natural circle bundle models quantum information visualized by holographic methods. Features of this setting are applied to magnetic resonance imaging.

Super Theta Vectors and Super Quantum Theta Operators

  • Kim, Hoil
    • Kyungpook Mathematical Journal
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    • 제59권3호
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    • pp.403-414
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    • 2019
  • Theta functions are the sections of line bundles on a complex torus. Noncommutative versions of theta functions have appeared as theta vectors and quantum theta operators. In this paper we describe a super version of theta vectors and quantum theta operators. This is the natural unification of Manin's result on bosonic operators, and the author's previous result on fermionic operators.

전하중첩법을 이용한 직류 송전선 주변 이온장 해석 (Analysis of the Ionized Fields around HVDC Transmission Line by the Use of the Charge Simulation Method)

  • 민석원;송기현
    • 한국산학기술학회논문지
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    • 제6권6호
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    • pp.478-485
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    • 2005
  • 본 논문에서는 전하중첩법을 이용하여 다극성, 다도체 직류송전선의 주변 이온장을 해석하였다. 이와 관련한 알고리즘은 비선형 편미분 방정식으로 표현되어 매우 복잡하기 때문에 문제를 해석적으로 풀기가 매우 어렵다. 그래서 여기서는 다극성, 다도체 직류 송전선에 적용할 수 있는 컴퓨터 프로그램을 개발하였고 제안한 알고리즘의 타당성을 증명하기 위해 공간전하를 고려한 도체표면의 전계강도 및 코로나 전류밀도, 공간전하 밀도를 계산하였다.

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