Results 31 to 40 of about 2,365 (306)
Orbifold projective structures, differential operators, and logarithmic connections on a pointed Riemann surface [PDF]
, 2006 Defining orbifold projective structures on a multi-pointed compact Riemann surface, we give a necessary and sufficient condition for the existence of such a structure. Orbifold projective structures are described using logarithmic connections, as well as
Biswas, Indranil
core +1 more source
Higher-spin self-dual Yang-Mills and gravity from the twistor space
Journal of High Energy Physics, 2023 We lift the recently proposed theories of higher-spin self-dual Yang-Mills (SDYM) and gravity (SDGR) to the twistor space. We find that the most natural room for their twistor formulation is not in the projective, but in the full twistor space, which is ...
Yannick Herfray +2 more
doaj +1 more source
4-connected projective-planar graphs are Hamiltonian-connected
Journal of Combinatorial Theory, Series B, 2013 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ken-ichi Kawarabayashi, Kenta Ozeki
openaire +2 more sources
Holomorphic projective connections on compact complex threefolds [PDF]
, 2023 We prove that a holomorphic projective connection on a complex projective threefold is either flat, or it is a translation invariant holomorphic projective connection on an abelian threefold.
Biswas, Indranil, Dumitrescu, Sorin
core +1 more source
Categorical Properties of Soft Sets
The Scientific World Journal, 2014 The present study investigates some novel categorical properties of soft sets. By combining categorical theory with soft set theory, a categorical framework of soft set theory is established.
Min Zhou, Shenggang Li, Muhammad Akram
doaj +1 more source
Keldysh nonlinear sigma model for a free-fermion gas under continuous measurements
Physical Review Research, 2023 Quantum entanglement phase transitions have provided new insights into quantum many-body dynamics. Both disorders and measurements are found to induce similar entanglement transitions.
Qinghong Yang, Yi Zuo, Dong E. Liu
doaj +1 more source
Emblematics and metaphor: theoretical facets and hermeneutic issues
Frontiers in Communication, 2023 The article focuses on Renaissance emblematics and its privileged relationship with metaphor, considered in the light of contemporary theories as an inherently tensional form, steeped in interchange and transition and heavily relying on a basically ...
Daniele Borgogni
doaj +1 more source
Logarithmic Projective Connections
Tokyo Journal of Mathematics, 1993 Let \(X\) be a complex manifold of dimension \(n \geq 2\) and \(D\) a reduced effective divisor with only normal crossing singularities. Then, via a suitable locally finite open covering of \(X\), the divisor \(D\) is locally defined by equations \(z_ 1\dots z_ n = 0\), and such a local coordinate system is called a logarithmic coordinate system along \
openaire +3 more sources
CONICS IN THE PROJECTIVELY CONNECTED MANIFOLDS
Memoirs of the Faculty of Science, Kyushu University. Series A, Mathematics, 1942 Not ...
HOMBU, Hitoshi, MIKAMI, Misao
openaire +3 more sources
Notes on projective structures with torsion [PDF]
, 2023 We show that projective structures with torsion are related to connections in a parallel way to the torsion-free ones. This is done in terms of Cartan connections by following Kobayashi and Nagano.
Asuke, Taro
core +1 more source