Results 51 to 60 of about 783,373 (136)

Design of First-Order Optimization Algorithms via Sum-of-Squares Programming

, 2018
In this paper, we propose a framework based on sum-of-squares programming to design iterative first-order optimization algorithms for smooth and strongly convex problems.
Fazlyab, Mahyar, Morari, Manfred, Preciado, Victor M.   +2 more
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The Fourth Hybrid Power Mean Involving the Character Sums and Exponential Sums

Mathematics
In this paper, we consider the fourth hybrid power mean involving two-term exponential sums and third-order character sum modulo p, a topic of significant importance in analytic number theory.
Guohui Chen, Tingting Du
doaj   +1 more source

A mixed integer nonlinear programming formulation for the problem of fitting positive exponential sums to empirical data [PDF]

Opuscula Mathematica, 2011
In this work we deal with exponential sum models coming from data acquisition in the empirical sciences. We present a two step approach based on Tikhonov regularization and combinatorial optimization, to obtain stable parameter estimations, which fit the
Adalys Alvarez, Hugo Lara
doaj   +1 more source

MENENTUKAN MATRIKS PELUANG TRANSISI UNTUK WAKTU OKUPANSI MENGGUNAKAN TRANSFORMASI LAPLACE DAN MATRIKS EKSPONENSIAL

Media Statistika, 2015
The transition probability matrix is a matrix which contains some probability among two state. It has properties that every probability is non-negative and sum by row at every state is one.
Sudarno Sudarno
doaj   +1 more source

A partial fraction decomposition of the Fermi function

, 2009
A partial fraction decomposition of the Fermi function resulting in a finite sum over simple poles is proposed. This allows for efficient calculations involving the Fermi function in various contexts of electronic structure or electron transport theories.
Croy, Alexander, Saalmann, Ulf
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Linear recurrences and asymptotic behavior of exponential sums of symmetric boolean functions [PDF]

, 2011
In this paper we give an improvement of the degree of the homogeneous linear recurrence with integer coefficients that exponential sums of symmetric Boolean functions satisfy. This improvement is tight.
Castro, Francis N., Medina, Luis A.
core   +1 more source

The asymptotic expansion of a generalisation of the Euler-Jacobi series [PDF]

, 2015
We consider the asymptotic expansion of the sum Sp(a; w) = ∞Ʃ n=1 e−anp/nw as a → 0 in | arg a| <1/2π for arbitrary finite p > 0 and w > 0. Our attention is concentrated mainly on the case when p and w are both even integers, where the expansion
Paris, Richard B.
core   +2 more sources

Exponential Sums Related to Maass Forms [PDF]

, 2015
We estimate short exponential sums weighted by the Fourier coefficients of a Maass form. This requires working out a certain transformation formula for non-linear exponential sums, which is of independent interest.
Jääsaari, Jesse, Vesalainen, Esa V.
core  

Changes of Material Properties of Silumin During Age-Hardening

Communications, 2012
Simple phenomenological description of age-hardening kinetics of supersaturated solid solution is presented using the sum of exponential functions with negative arguments containing rate constants whose temperature dependence is described by the ...
Jan Kohout
doaj   +1 more source

Spectral exponential sums on hyperbolic surfaces I

, 2019
We study an exponential sum over Laplace eigenvalues $\lambda_{j} = 1/4+t_{j}^{2}$ with $t_{j} \leqslant T$ for Maass cusp forms on $\Gamma \backslash \mathbb{H}$ as $T$ grows, where $\Gamma \subset PSL_{2}(\mathbb{R})$ is a cofinite Fuchsian group ...
Kaneko, Ikuya
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