Results 11 to 20 of about 288 (212)

One missing value problem in Latin square design of any order: Exact analysis of variance

open access: yesCogent Engineering, 2017
This research proposes a simplified exact approach based on the general linear model for solving the K × K Latin square design (LSD) with one replicate and one missing value, given the lack of ready-made mathematical formulas for the sub-variance.
Kittiwat Sirikasemsuk   +1 more
doaj   +1 more source

Somas de quadrados e hipóteses associadas ao modelo dialélico de Gardner e Eberhart Some insights into the sums of square and associated hypotheses of the Gardner and Eberhart diallel model

open access: yesCiência e Agrotecnologia, 2003
Quando o modelo estatístico não é ortogonal ou nos casos de desbalanceamento, existem diferentes critérios para a formulação de hipóteses que geram diferentes valores para as somas de quadrados.
Paulo César Lima   +3 more
doaj   +1 more source

Mathematical Attack of RSA by Extending the Sum of Squares of Primes to Factorize a Semi-Prime

open access: yesMathematical and Computational Applications, 2020
The security of RSA relies on the computationally challenging factorization of RSA modulus N=p1 p2 with N being a large semi-prime consisting of two primes p1and p2, for the generation of RSA keys in commonly adopted cryptosystems. The property of p1 and 
Anthony Overmars   +1 more
doaj   +1 more source

Sums of three squares [PDF]

open access: yesProceedings of the American Mathematical Society, 1957
We make use of an elegant method of Professor H. Davenport [l] in the Geometry of Numbers. Without loss of generality we will prove Theorem 1 only when m is square free. (In the following m will be assumed to be square free.) In §1 we shall prove Theorem 1 when m = 3 (mod 8).
openaire   +2 more sources

Univariate rational sums of squares

open access: yesRevista de la Unión Matemática Argentina, 2022
Dados los polinomios racionales univariados f y g tales que gcd(f, g) y f / gcd(f, g) son relativamente primos, mostramos que g es no negativo en todas las raíces reales de f si y solo si g es una suma de cuadrados de polinomios racionales módulo f. Completamos nuestro estudio exhibiendo un algoritmo que produce un certificado de que un polinomio g es ...
Teresa Krick   +2 more
openaire   +4 more sources

Recursive determination of the enumerator for sums of three squares

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
For each nonnegative integer n, r3(n) denotes the number of representations of n by sums of three squares. Here presented is a two-step recursive scheme for computing r3(n), n≥0.
John A. Ewell
doaj   +1 more source

On large deviations for random sums of the squares of weighted Gaussian random variables

open access: yesLietuvos Matematikos Rinkinys, 2015
The paper considers normal approximation to the distribution of random sums of the squares of independent weighted Gaussian random variables (r.vs.) taking into consideration large deviations in the Cramér zone.
Aurelija Kasparavičiūtė   +1 more
doaj   +1 more source

Decomposition of the mean absolute error (MAE) into systematic and unsystematic components.

open access: yesPLoS ONE, 2023
When evaluating the performance of quantitative models, dimensioned errors often are characterized by sums-of-squares measures such as the mean squared error (MSE) or its square root, the root mean squared error (RMSE).
Scott M Robeson, Cort J Willmott
doaj   +1 more source

Sums of Squares and Sums of Triangular Numbers [PDF]

open access: yesgmj, 2006
Abstract Motivated by two results of Ramanujan, we give a family of 15 results and 4 related ones. Several have interesting interpretations in terms of the number of representations of an integer by a quadratic form , where λ1 + . . . + λ𝑚 = 2, 4 or 8.
Cooper, Shaun, Hirschhorn, Michael
openaire   +2 more sources

An upper bound on binomial coefficients in the de Moivre – Laplace form

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2022
We provide an upper bound on binomial coefficients that holds over the entire parameter range an whose form repeats the form of the de Moivre – Laplace approximation of the symmetric binomial distribution.
Sergey V. Agievich
doaj   +1 more source

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