Results 11 to 20 of about 128,550,571 (209)
A Comparison between Fixed-Basis and Variable-Basis Schemes for Function Approximation and Functional Optimization [PDF]
, 2012 Fixed-basis and variable-basis approximation schemes are compared for the problems of function approximation and functional optimization (also known as infinite programming).
Gnecco, Giorgio +3 more
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Diversity of Lorentz-Zygmund spaces of operators defined by approximation numbers
, 2023 We prove the following dichotomy for the spaces ℒ (a) p,q,α (X, Y) of all operators T ∈ ℒ(X, Y) whose approximation numbers belong to the Lorentz-Zygmund sequence spaces ℓp,q(log ℓ)α: If X and Y are infinite-dimensional Banach spaces, then the spaces ℒ
Cobos Díaz, Fernando, Kühn, Thomas
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Uniform approximation for period-quadrupling bifurcations. [PDF]
, 1997 . We derive a uniform approximation for semiclassical contributions of periodic orbits to the spectral density which is valid for generic period-quadrupling bifurcations in systems with a mixed phase space.
Henning Schomerus +5 more
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Determination of a steady velocity field in a rotating frame of reference at the surface of the Earth's core [PDF]
, 1996 We relax the steady-motions theorem by solving for a steady velocity field at the surface of the core in a frame of reference drifting at a linear rate with respect to an observer fixed in the mantle frame of reference.
Whaler, Kathy; id_orcid, Davis, R. G.
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Diophantine approximation and special Liouville numbers [PDF]
, 2013 summary:This paper introduces some methods to determine the simultaneous approximation constants of a class of well approximable numbers $\zeta_{1},\zeta_{2},\ldots ,\zeta_{k}$.
Schleischitz, Johannes
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Optimal E-Field Vector Combination for a Highly Focused Antenna-Array [PDF]
, 2014 A near-field highly focused circular phased-array antenna for 5.8-GHz radio frequency identification (RFID) applications is presented. The electric field (E-field) at the focus is enhanced by a constructive vector combination in a three-dimensional (3-D)
Perallos, Asier +5 more
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Square-rich fixed point polynomial evaluation on FPGAs [PDF]
, 2014 Polynomial evaluation is important across a wide range of application domains, so significant work has been done on accelerating its computation. The conventional algorithm, referred to as Horner's rule, involves the least number of steps but can lead to
McLoughlin, Ian V. +5 more
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DNA extraction from formalin-fixed tissue: new light from the Deep-Sea [PDF]
, 2010 DNA samples were extracted from ethanol and formalin-fixed decapod crustacean tissue using a new method based on Tetramethylsilane (TMS)-Chelex. It is shown that neither an indigestible matrix of cross-linked protein nor soluble PCR inhibitors impede PCR
Thatje, S. +14 more
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An approximation by neural networkswith a fixed weight [PDF]
, 2004 Neural networks are widely used in many applications including astronomical physics,image processing, recognition, robotics, and automated target tracking, etc. Their ability to approximate arbitrary functions is the main reason for this popularity.
Hahm, Nahmwoo, Il Hong, Bum
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, 2013 In this paper we review the definition and properties of redundant operators in the exact renormalisation group. We explain why it is important to require them to be eigenoperators and why generically they appear only as a consequence of symmetries of ...
Morris, Tim R., Dietz, Juergen A.
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