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SCIREA Journal of Mathematics — Open Access Journal

SCIREA Journal of Mathematics is an international, scientific peer-reviewed open access journal published online by SCIREA.

Open Access free for readers, with article processing charges (APC) paid by authors or their institutions.

High visibility: Indexed in the Google Scholar and other databases.

Rapid publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 20 days after submission; acceptance to publication is undertaken in 5 days.

Recognition of reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any SCIREA journal, in appreciation of the work done.

Latest Articles
Open Access
Saofee Busaman
Abstract: In this paper, we define the set (CF_(T_n,(n))(X_n))^{A^s} of all n-ary C-formulas on the partial algebraic system A^s=(A;(f^A_i)_i in I,r^A) of type (T_n,(n)) and define the operation R^{n,A} on the set( (W^C_{T_n}(X_n))^{A^s}U(CF_(T_n,(n))(X_n))^{A^s}. After this definition we have a unitary Menger algebra ( ( (W [...] Read more.
Abstract   PDF (3890 K)   May 31, 2023    7 Downloads   65 Views   DOI: 10.54647/mathematics110401
Open Access
Sisti Nadia Amalia, Zul Amry
Abstract: Air transportation is the most appropriate option for extremely vast distances, such as those between cities, provinces, and countries. While unpredictability, high volatility, and seasonality sometimes result in complex behavior in air passenger time series, this research applies the Singular Spectrum Analysis technique fo [...] Read more.
Abstract   PDF (1356 K)   May 4, 2023    16 Downloads   115 Views   DOI: 10.54647/mathematics110393
Open Access
Xuanci Wang, Wei Yi, Bin Zhang
Abstract: The covariance matrix, employed for measuring the linear correlation between variables, plays a vital role in data analysis, such as statistical prediction and hypothesis testing. When the data dimension is high, the traditional sample covariance matrix is not an ideal estimator of the population covariance matrix anymore, [...] Read more.
Abstract   PDF (452 K)   February 9, 2023    10 Downloads   408 Views   DOI: 10.54647/mathematics110384
Open Access
Christer Oscar Kiselman
Abstract: This essay describes orbits of particles passing near the sun, first according to Newton’s celestial mechanics and then according to Einstein’s general theory of relativity. Attempts to verify the latter by observing the deflection of light during total solar eclipses are mentioned. Confirmation also comes from mea- sureme [...] Read more.
Abstract   PDF (11639 K)   February 9, 2023    15 Downloads   254 Views   DOI: 10.54647/mathematics110381
Open Access
Xing Zhu, Chuanze Niu
Abstract: The formula of the $p$-adic valuation of the sequence $C_n(l)=\prod_{k=1}^{n}\prod_{j=0}^{l}(2k+2j-1)$ is studied. It is proved that $C_n(l)$ is not a square if $l$ is even and $n\ge \max\{2l,\frac{3l+19}{5}\}$. It is proved also that there are many squares in the sequences $C_n(1)$ and $C_n(3)$, while there are no squares [...] Read more.
Abstract   PDF (255 K)   January 25, 2023    7 Downloads   339 Views   DOI: 10.54647/mathematics110379
Open Access
Abstract: Counterexamples are given to residue theorem of complex analysis. The functional equation of Riemann zeta-function is invalid. [...] Read more.
Abstract   PDF (1201 K)   December 11, 2022    8 Downloads   509 Views   DOI: 10.54647/mathematics11372
Open Access
Jinrong Shen
Abstract: In this paper, the minimal norm least squares solution of matrix equations (AXC,BXD,AXD,BXC)=(E,F,G,H) is discussed, by using the projection theorem, the generalized singular value decomposition and the canonical correlation decomposition, the expression of the solution of this problem is obtained. [...] Read more.
Abstract   PDF (210 K)   December 11, 2022    9 Downloads   273 Views   DOI: 10.54647/mathematics11371
Open Access
Hong-Quan LIU
Abstract: The famous Stirling’s formula is generalized and improved, by using the arguments of analytic number theory and mathematical analysis. [...] Read more.
Abstract   PDF (741 K)   December 4, 2022    12 Downloads   335 Views   DOI: 10.54647/mathematics11183
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