Zobrazeno 1 - 10
of 2 878
pro vyhledávání: '"[MATH.MATH-DG]Mathematics [math]/Differential Geometry [math.DG]"'
Autor:
Bruno Duchesne
Publikováno v:
HAL
We consider the isometry group of the infinite dimensional separable hyperbolic space with its Polish topology. This topology is given by the pointwise convergence. For non-locally compact Polish groups, some striking phenomena like automatic continu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ddeb63c343d96db81c03238002cc1e0
https://doi.org/10.4171/ggd/713
https://doi.org/10.4171/ggd/713
Publikováno v:
{date}
We show two stability results for a closed Riemannian manifold whose Ricci curvature is small in the Kato sense and whose first Betti number is equal to the dimension. The first one is a geometric stability result stating that such a manifold is Grom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5925dc2a08b102472c5ffa65ef4d189e
https://doi.org/10.1112/jlms.12704
https://doi.org/10.1112/jlms.12704
Publikováno v:
EUSIPCO 2023-The 31st European Signal Processing Conference
EUSIPCO 2023-The 31st European Signal Processing Conference, Sep 2023, Helsinki, Finland
EUSIPCO 2023-The 31st European Signal Processing Conference, Sep 2023, Helsinki, Finland
International audience; Accurate classification of cognitive states from Electroencephalographic (EEG) signals is crucial in neuroscience applications such as Brain-Computer Interfaces (BCIs). Classification pipelines based on Riemannian geometry are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::665c12a5428ee1830b65e181f2a2afc4
https://hal.science/hal-04131609
https://hal.science/hal-04131609
Autor:
Tipler, Carl
Publikováno v:
Proceedings of the American Mathematical Society.
For a polarized K\"ahler manifold $(X, L)$, we show the equivalence between relative balanced embeddings introduced by Mabuchi and $\sigma$-balanced embeddings introduced by Sano, answering a question of Hashimoto. We give a GIT characterization of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae846101c79d2a9eec22231f5a98b968
https://doi.org/10.1090/proc/16426
https://doi.org/10.1090/proc/16426
Autor:
Olivier Biquard, Paul Gauduchon
Publikováno v:
Communications in Mathematical Physics. 399:389-422
We give a classification of toric, Hermitian, Ricci flat, ALF Riemannian metrics in dimension 4, including metrics with conical singularities. The only smooth examples are on one hand the hyperKaehler ALF metrics, on the other hand, the Kerr, Taub-NU
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2659769fb2f93951997046293e6011a9
https://doi.org/10.1007/s00220-022-04562-z
https://doi.org/10.1007/s00220-022-04562-z
Autor:
Guenancia, Henri, Taji, Behrouz
Publikováno v:
Geometry and Topology
Geometry and Topology, Mathematical Sciences Publishers, In press
Geometry and Topology, Mathematical Sciences Publishers, In press
After establishing suitable notions of stability and Chern classes for singular pairs, we use K\"ahler-Einstein metrics with conical and cuspidal singularities to prove the slope semistability of orbifold tangent sheaves of minimal log-canonical pair
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7715a237df91bbf695a064bf393428f3
https://doi.org/10.2140/gt.2022.26.1435
https://doi.org/10.2140/gt.2022.26.1435
Autor:
Falbel, Elisha, Veloso, Jose Miguel
We study a global invariant for path structures. The invariant is obtained as a secondary invariant from a Cartan connection on a canonical bundle associated to a path structure. It is computed in examples which are defined in terms of reductions of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd3e43d2e58e2d95c2adb35e7cc41005
http://arxiv.org/abs/2306.17705
http://arxiv.org/abs/2306.17705
Publikováno v:
Indiana University Mathematics Journal. 71:1155-1207
For a hyperbolic knot and a natural number n, we consider the Alexander polynomial twisted by the n-th symmetric power of a lift of the holonomy. We establish the asymptotic behavior of these twisted Alexander polynomials evaluated at unit complex nu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f128bbdbaec956ccf10d5d5016b328
https://doi.org/10.1512/iumj.2022.71.8937
https://doi.org/10.1512/iumj.2022.71.8937
Autor:
Rizzi, Luca, Stefani, Giorgio
We prove that, on any sub-Riemannian manifold endowed with a positive smooth measure, the Bakry-\'Emery inequality for the corresponding sub-Laplacian implies the existence of enough Killing vector fields on the tangent cone to force the latter to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e71f78fff701a3cfa67eecf6cf51160
Autor:
Blanche Buet, Martin Rumpf
Publikováno v:
ESAIM: Mathematical Modelling and Numerical Analysis
ESAIM: Mathematical Modelling and Numerical Analysis, 2022, 56 (5), pp.1773-1808. ⟨10.1051/m2an/2022047⟩
ESAIM: Mathematical Modelling and Numerical Analysis, 2022, 56 (5), pp.1773-1808. ⟨10.1051/m2an/2022047⟩
This paper investigates a discretization scheme for mean curvature motion on point cloud varifolds with particular emphasis on singular evolutions. To define the varifold a local covariance analysis is applied to compute an approximate tangent plane
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb3df08c3859d30e0899cd39f4471c85
https://doi.org/10.1051/m2an/2022047
https://doi.org/10.1051/m2an/2022047