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After reviewing recent results on symplectic Lefschetz pencils and symplectic branched covers of \CP2, we describe a new construction of maps from symplectic manifolds of any dimension to \CP2 and the...
The $(3 + 1)$-dimensional (generalized) Dirac equation is shown to have the same form as the equation expressing the condition that a given point lies on a given line in 3-dimensional projective space...
So far, various multi-photon entangled states have been observed experimentally by using different experimental set-ups. Here, we present a scheme to realize many SLOCC-inequivalent states of three an...
We study the positive-operator-valued measures on the projective real line covariant with respect to the projective group, assuming that the energy is a positive operator. This problem is similar to t...
<正> INTRODUGTION.1.In the proiective theory of a curve in ordinary space thereare introduced various systems of tetrahedrons associated to a pointof the curve.Most of them are,more or less,artificial ...
<正> Su has recently established the projective theory of space curvesby a purely geometrical method and has shown among other thingsthat the projective invariants of a curve can simply be expressed by...
<正> In a recent paper of the same title we studied the plane sectionsof the circumscribed developable of a curve in the projective n-dimen-sional space Sn(n(?)3) confining ourselves to the considerati...
<正> In the present paper we propose to establish certain theoremsconcerning plane sections of the circumscribed developable of a curvein the projective n-dimensional space s_n((?)3).The planes in cons...
<正> In a recent paper the present author has established somerepresentations for a plane curve C in the neighbourhood of a singularpoint O characterized by the property that the tangent t(?) of C at O...
PROJECTIVE DIFFERENTIAL GEOMETRY          2007/12/12
<正> By hypothesis the curve C_m has with C a contact of order m+1;the constant term and the coefficient of the term s in the expansion off/s~m must vanish,namely……
Let $\Omega$ be a symmetric cone. In this note, we introduce Hilbert's projective metric on $\Omega$ in terms of Jordan algebras and we apply it to prove that, given a linear invertible transformation...
2007Vol.48No.1pp.132-136DOI: Generalized Projective Synchronization Between Rössler System and New Unified Chaotic System LI Xin1,3 and CHEN Yong1,2,3 1 Nonlinear S...
2007Vol.47No.1pp.1-9DOI: Double-Parameter Solutions of Projective Riccati Equations and Their Applications WANG Ming-Liang,1,2 LI Er-Qiang,1 and LI Xiang-Zheng1 1 Scienc...
2006Vol.45No.5pp.864-868DOI: New Families of Exact Excitations to (2+1)-Dimensional Toda Lattice System via an Extended Projective Approach FANG Jian-Ping1, FEI Jin-Xi,1 and ZHENG...
2006Vol.45No.1pp.45-48DOI: Integrable System and Motion of Curves in Projective and Similarity Geometries HOU Yu-Qing Department of Electronics, Northwest University, Xi...

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