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pro vyhledávání: '"SASAKI"'
The Sasaki projection was introduced as a mapping from the lattice of closed subspaces of a Hilbert space onto one of its segments. To use this projection and its dual so-called Sasaki operations were introduced by the second two authors. In a previo
Externí odkaz:
http://arxiv.org/abs/2412.15764
Autor:
Chajda, Ivan, Länger, Helmut
The Sasaki projection and its dual were introduced as a mapping from the lattice of closed subspaces of a Hilbert space onto one of its segments. In a previous paper the authors showed that the Sasaki operations induced by the Sasaki projection and i
Externí odkaz:
http://arxiv.org/abs/2411.19347
We introduce the notions of weighted extremal K{\"a}hler twins together with the related notion of extremal Sasaki twins. In the K\"ahler setting this leads to a generalization of the twinning phenomenon appearing among LeBrun's strongly Hermitian so
Externí odkaz:
http://arxiv.org/abs/2411.13502
We extend the concept of a Sasakian structure on a cooriented contact manifold, given by a compatibility between the contact form $\eta$ and a Riemannian metric $g_M$ on $M$, to the case of a general contact structure understood as a contact distribu
Externí odkaz:
http://arxiv.org/abs/2412.16697
We use the Berglund-H\"ubsch transpose rule from classical mirror symmetry in the context of Sasakian geometry and results on relative K-stability in the Sasaki setting developed by Boyer and van Coevering to exhibit examples of Sasaki manifolds of c
Externí odkaz:
http://arxiv.org/abs/2409.09720
Autor:
Chajda, Ivan, Länger, Helmut
The so-called Sasaki projection was introduced by U. Sasaki on the lattice L(H) of closed linear subspaces of a Hilbert space H as a projection of L(H) onto a certain sublattice of L(H). Since L(H) is an orthomodular lattice, the Sasaki projection an
Externí odkaz:
http://arxiv.org/abs/2408.03432
In this paper, we derive the uniform L^{4}-bound of the transverse conic Ricci curvature along the conic Sasaki-Ricci flow on a compact transverse log Fano Sasakian manifold M of dimension five and the space of leaves of the characteristic foliation
Externí odkaz:
http://arxiv.org/abs/2406.16430
Autor:
Manev, Mancho
Almost contact complex Riemannian manifolds, also known as almost contact B-metric manifolds, are equipped with a pair of pseudo-Riemannian metrics that are mutually associated with each other using the tensor structure. Here we consider a special cl
Externí odkaz:
http://arxiv.org/abs/2405.14364
Autor:
Odaka, Yuji
We construct proper moduli algebraic spaces of K-polystable $\mathbb{Q}$-Fano cones (a.k.a. Calabi-Yau cones) or equivalently their links i.e., Sasaki-Einstein manifolds with singularities. As a byproduct, it gives alternative algebraic construction
Externí odkaz:
http://arxiv.org/abs/2405.07939