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Wireless Communications
, 2005
"... Copyright c ○ 2005 by Cambridge University Press. This material is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University ..."
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Cited by 1129 (32 self)
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Copyright c ○ 2005 by Cambridge University Press. This material is in copyright. Subject to statutory exception and to the provisions of relevant collective licensing agreements, no reproduction of any part may take place without the written permission of Cambridge University
KodairaSpencer theory of gravity and exact results for quantum string amplitudes
 Commun. Math. Phys
, 1994
"... We develop techniques to compute higher loop string amplitudes for twisted N = 2 theories with ĉ = 3 (i.e. the critical case). An important ingredient is the discovery of an anomaly at every genus in decoupling of BRST trivial states, captured to all orders by a master anomaly equation. In a particu ..."
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Cited by 545 (60 self)
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We develop techniques to compute higher loop string amplitudes for twisted N = 2 theories with ĉ = 3 (i.e. the critical case). An important ingredient is the discovery of an anomaly at every genus in decoupling of BRST trivial states, captured to all orders by a master anomaly equation. In a particular realization of the N = 2 theories, the resulting string field theory is equivalent to a topological theory in six dimensions, the Kodaira– Spencer theory, which may be viewed as the closed string analog of the Chern–Simon theory. Using the mirror map this leads to computation of the ‘number ’ of holomorphic curves of higher genus curves in Calabi–Yau manifolds. It is shown that topological amplitudes can also be reinterpreted as computing corrections to superpotential terms appearing in the effective 4d theory resulting from compactification of standard 10d superstrings on the corresponding N = 2 theory. Relations with c = 1 strings are also pointed out.
The Hero with a Thousand Faces
, 1972
"... Botiingen Foundation, andpttt.!.,.: b % / ,.,;:,c,m B<,.ik.*, second ..."
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Cited by 353 (0 self)
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Botiingen Foundation, andpttt.!.,.: b % / ,.,;:,c,m B<,.ik.*, second
Functional Phonology  Formalizing the interactions between articulatory and perceptual drives
, 1998
"... ..."
Radar Interferometry and its application to changes in the Earth’s surface." Reviews of Geophysics 36(4
, 1998
"... Abstract. Geophysical applications of radar interferometry to measure changes in the Earth’s surface have exploded in the early 1990s. This new geodetic technique calculates the interference pattern caused by the difference in phase between two images acquired by a spaceborne synthetic aperture rad ..."
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Cited by 286 (5 self)
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Abstract. Geophysical applications of radar interferometry to measure changes in the Earth’s surface have exploded in the early 1990s. This new geodetic technique calculates the interference pattern caused by the difference in phase between two images acquired by a spaceborne synthetic aperture radar at two distinct times. The resulting interferogram is a contour map of the change in distance between the ground and the radar instrument. These maps provide an unsurpassed spatial sampling density (;100 pixels km22), a competitive precision (;1 cm), and a useful observation cadence (1 pass month21). They record movements in the crust, perturbations in the atmosphere, dielectric modifications in the soil, and relief in the topography. They are also sensitive to technical effects, such as relative variations in the
Information Retrieval Interaction
, 1992
"... this document, text or image about?' Gradually moving from the left to the right in Figure 3.1, different understandings of this concept evolve ..."
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Cited by 242 (8 self)
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this document, text or image about?' Gradually moving from the left to the right in Figure 3.1, different understandings of this concept evolve
ON THE RANKS AND BORDER RANKS OF SYMMETRIC TENSORS
"... Abstract. Motivated by questions arising in signal processing, computational complexity, and other areas, we study the ranks and border ranks of symmetric tensors using geometric methods. We provide improved lower bounds for the rank of a symmetric tensor (i.e., a homogeneous polynomial) obtained by ..."
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Cited by 46 (8 self)
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by considering the singularities of the hypersurface defined by the polynomial. We obtain normal forms for polynomials of border rank up to five, and compute or bound the ranks of several classes of polynomials, including monomials, the determinant, and the permanent. 1.
A Toolkit for Analyzing Nonlinear Dynamic Stochastic Models Easily
"... Often, researchers wish to analyze nonlinear dynamic discretetime stochastic models. This chapter provides a toolkit for solving such models easily, building on loglinearizing the necessary equations characterizing the equilibrium and solving for the recursive equilibrium law of motion with the me ..."
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Cited by 215 (2 self)
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Often, researchers wish to analyze nonlinear dynamic discretetime stochastic models. This chapter provides a toolkit for solving such models easily, building on loglinearizing the necessary equations characterizing the equilibrium and solving for the recursive equilibrium law of motion with the method of undetermined coefficients. This chapter contains nothing substantially new. Instead, the chapter simplifies and unifies existing approaches to make them accessible for a wide audience, showing how to loglinearizing the nonlinear equations without the need for explicit di erentiation, how to use the method of undetermined coefficients for models with a vector of endogenous state variables, to provide a general solution by characterizing the solution with a matrix quadratic equation and solving it, and to provide frequencydomain techniques to calculate the second order properties of the model in its HPfiltered version without resorting to simulations. Since the method is an Eulerequation based approach rather than an approach based on solving a social planners problem, models with externalities or distortionary taxation do not pose additional problems. MATLAB programs to carry out the calculations in this chapter are made available. This chapter should be useful for researchers and Ph.D. students alike.
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