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Mathematics. 3 (4). MDPI AG: 1192– 1221. arXiv: 1405.6888. doi: 10.3390/math3041192. ISSN 2227-7390. Schroeter, H. (1889), "Ueber die Bildungsweise und geometrische Konstruction der Konfigurationen 10 3 ", Nachrichten von der Königl. Gesellschaft der Wissenschaften und der Georg-Augusts-Universität zu Göttingen, 1889: 193– 236
The general linear group GL(2, 7) consists of all invertible 2×2 matrices over F 7, the finite field with 7 elements. These have nonzero determinant. The subgroup SL(2, 7) consists of all such matrices with unit determinant. Then PSL(2, 7) is defined to be the quotient group. SL(2, 7) / {I, −I} obtained by identifying I and −I, where I is ...
Mathematics is a semi-monthly peer-reviewed open-access scientific journal that covers all aspects of pure mathematics and applied mathematics. It publishes theoretical and experimental research articles, short communications, and reviews. It was established in 2013 and is published by MDPI.
The number π (/ p aɪ / ⓘ; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.
Proofs of the mathematical result that the rational number 22 / 7 is greater than π (pi) date back to antiquity. One of these proofs, more recently developed but requiring only elementary techniques from calculus, has attracted attention in modern mathematics due to its mathematical elegance and its connections to the theory of Diophantine approximations.
Historically, information geometry can be traced back to the work of C. R. Rao, who was the first to treat the Fisher matrix as a Riemannian metric. [2] [3] The modern theory is largely due to Shun'ichi Amari, whose work has been greatly influential on the development of the field.
A packing of PG(3, 2) is a partition of the 35 lines into 7 disjoint spreads of 5 lines each, and corresponds to a solution for all seven days. There are 240 packings of PG(3, 2), that fall into two conjugacy classes of 120 under the action of PGL(4, 2) (the collineation group of the space); a correlation interchanges these two classes. [6]
The journal was established in 1967 as Mathematical Notes of the Academy of Sciences of the USSR and obtained its current title in 1991. The current editor-in-chief is Victor P. Maslov. According to the Journal Citation Reports, the journal has a 2011 impact factor of 0.295. [1] The journal is indexed in Russian Science Citation Index. [2]