Results 11 to 20 of about 52,388 (182)
Projective Connections and Projective Transformations [PDF]
Nagoya Mathematical Journal, 1957 The main purpose of the present paper is to establish a theorem concerning the relation between the group of all projective transformations on an affinely connected manifold and the group of all affine transformations.
openaire +2 more sources
A non-trivial connection for the metric-affine Gauss–Bonnet theory in D = 4
Physics Letters B, 2019 We study non-trivial (i.e. non-Levi-Civita) connections in metric-affine Lovelock theories. First we study the projective invariance of general Lovelock actions and show that all connections constructed by acting with a projective transformation of the ...
Bert Janssen +2 more
doaj +1 more source
Дифференциальная геометрия многообразий фигур, 2021 In n-dimensional projective space Pn a manifold , i. e., a family of pairs of planes one of which is a hyperplane in the other, is considered. A principal bundle arises over it, . A typical fiber is the stationarity subgroup of the generator of pair of
A.V. Vyalova, Yu. I. Shevchenko
doaj +1 more source
Projective toric designs, quantum state designs, and mutually unbiased bases [PDF]
QuantumToric $t$-designs, or equivalently $t$-designs on the diagonal subgroup of the unitary group, are sets of points on the torus over which sums reproduce integrals of degree $t$ monomials over the full torus.
Joseph T. Iosue +3 more
doaj +1 more source
Centered planes in the projective connection space
Дифференциальная геометрия многообразий фигур, 2020 The space of centered planes is considered in the Cartan projective connection space . The space is important because it has connection with the Grassmann manifold, which plays an important role in geometry and topology, since it is the basic space ...
O.O. Belova
doaj +1 more source
A new two--parameter family of isomonodromic deformations over the five punctured sphere [PDF]
, 2016 The object of this paper is to describe an explicit two--parameter family of logarithmic flat connections over the complex projective plane. These connections have dihedral monodromy and their polar locus is a prescribed quintic composed of a circle and ...
Girand, Arnaud
core +4 more sources
Behavioral Sciences, 2020 Many studies have shown connections between perfectionism, motivation, and anxiety disorders (AD), as well as essential hypertension (EH). The objective of this study is to examine the connections between motivation and the structure of perfectionism in ...
Elena I. Pervichko +3 more
doaj +1 more source
The Relationship of Academic Motivation and Psychological Well-being in Primary School Age
Психолого-педагогические исследования, 2022 The article presents data on the psychological well-being of primary school-age children with different types of academic motivation. The study involved 87 students of the 3rd-4th grades of Moscow secondary schools (41 boys and 46 girls).
Kulagina I.Y., Kravtsova M.A.
doaj +1 more source
Rigid irregular connections on P^1 [PDF]
, 2010 N.Katz's middle convolution algorithm provides a description of rigid connections on the projective line with regular singularities. We extend the algorithm by adding the Fourier transform to it.
Arinkin, D.
core +1 more source
Journal of Geometry and Physics, 2007 Two approaches (of È. Cartan and of T. Y. Thomas and J. H. C. Whitehead) to the study of projective connections are compared. Spray geometry is reviewed, the Thomas-Whitehead construction and its generalization to sprays are discussed, and afterwards the Cartan theory in the affine case is described.
Crampin, M., Saunders, D. J.
openaire +2 more sources