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Almost commutative Riemannian geometry, I: wave operators
noncommutative geometry quantum groups quantum gravity
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2010/12/3
Associated to any (pseudo)-Riemannian manifold M of dimension n is an n + 1-dimensional noncommutative di erential structure (1; d)on the manifold.
A Vector Field Method Approach to Improved Decay for Solutions to the Wave Equation on a Slowly Rotating Kerr Black Hole
Vector Field Method Approach Improved Decay for Solutions Wave Equation Kerr Black Hole
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2010/12/15
We prove that sufficiently regular solutions to the wave equation gK = 0 on the exterior of a sufficiently slowly rotating Kerr black hole obey the estimates || C(t)−3
2 + on a compact r...
Efficient Sampling of Band-limited Signals from Sine Wave Crossings
Efficient Sampling Band-limited Signals Sine Wave Crossings
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2010/12/15
This paper presents an efficient method for reconstructing a band-limited signal in the discrete domain from its crossings with a sine wave.
Hamiltonian-preserving schemes for the Liouville equation of geometrical optics with discontinuous local wave speeds
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2007/7/28
专著信息
书名
Hamiltonian-preserving schemes for the Liouville equation of geometrical optics with discontinuous local wave speeds
语种
英文
撰写或编译
作者
S. Jin,X. Wen
第一作者单位
出版社
J. Computational Physics, to appe...