Results 231 to 240 of about 786,670 (261)

Laser-driven resonant soft-X-ray scattering for probing picosecond dynamics of nanometre-scale order. [PDF]

open access: yesLight Sci Appl
Lunin L   +8 more
europepmc   +1 more source

DOUBLE EXPONENTIAL SUMS

Analysis, 1996
The classical Kuzmin-Landau and van der Corput inequalities imply estimates for the exponential sum \(\sum_{a\leq n\leq b} e(f(n))\) once certain bounds for the derivatives \(f'(t)\) and \(f''(t)\) are known. These are generalized to double exponential sums \(\sum_{(n_1,n_2) \in D} e(f(n_1,n_2))\), where \(D\) is a rectangle, or a more general domain ...
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On a New Exponential Sum

Canadian Mathematical Bulletin, 2001
AbstractLet p be prime and let be of multiplicative order t modulo p.
Lieman, Daniel, Shparlinski, Igor
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On An Exponential Sum

Journal of the London Mathematical Society, 1938
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Exponentially convergent lattice sums

Optics Letters, 2001
For any oblique incidence and arbitrarily high order, lattice sums for one-dimensional gratings can be expressed in terms of exponentially convergent series. The scattering Green's function can be efficiently evaluated also in the grating plane. Numerical implementation of the method is 200 times faster than for the previous best result.
openaire   +3 more sources

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