Results 91 to 100 of about 16,119 (189)
Logarithmic capacity and Riemann and Hilbert problems for generalized analytic functions
Доповiдi Нацiональної академiї наук УкраїниThe study of the Dirichlet problem with arbitrary measurable boundary data for harmonic functions in the unit disk is due to the famous Luzin dissertation.
V.Ya. Gutlyanskiĭ +3 more
doaj +1 more source
Generalized two-field α-attractor models from geometrically finite hyperbolic surfaces
Nuclear Physics B, 2018 We consider four-dimensional gravity coupled to a non-linear sigma model whose scalar manifold is a non-compact geometrically finite surface Σ endowed with a Riemannian metric of constant negative curvature.
C.I. Lazaroiu, C.S. Shahbazi
doaj +1 more source
On contact 3‐manifolds that admit a nonfree toric action
Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.Abstract We classify all contact structures on 3‐manifolds that admit a nonfree toric action, up to contactomorphism, and present them through explicit topological descriptions. Our classification is based on Lerman's classification of toric contact 3‐manifolds up to equivariant contactomorphism [Lerman, J. Symplectic Geom. 1 (2003), 785–828].
Aleksandra Marinković, Laura Starkston
wiley +1 more source
On Fico's Lemmata and the homotopy type of certain gyrations
Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.Abstract We undertake to determine the homotopy type of gyrations of sphere products and of connected sums, thereby generalising results known in earlier literature as ‘Fico's Lemmata’ which underpin gyrations in their original formulation from geometric topology.
Sebastian Chenery
wiley +1 more source
Directed suborbital graphs on the Poincare disk
, 2017 In this paper we investigate suborbital graphs of a special congruence subgroup of modular group. And this directed graphs is drawn in Poincare disk.
Beşenk, Murat, Köroğlu, Tuncay
openaire +2 more sources
C.T.C. Wall's 1964 articles on 4‐manifolds
Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.Abstract I survey C. T. C. Wall's influential papers, ‘Diffeomorphisms of 4‐manifolds’ and ‘On simply‐connected 4‐manifolds’, published in 1964 on pp. 131–149 of volume 39 of the Journal of the London Mathematical Society.
Mark Powell
wiley +1 more source
Nuclear Physics BIn this work, we investigate the trajectories of a charged test particle in the spacetime of a charged Kalb-Ramond black hole under a small violation of Lorentz symmetry.
Mona Bin-Asfour +3 more
doaj +1 more source
The Line Element Approach for the Geometry of Poincare Disk
, 2019 The geometry of Poincare disk itself is interpreted without any mapping to dierent spaces. Our approach might be one of the shortest and is intended for educational contribution.
openaire +2 more sources
The Poincare Conjecture is True in the Product of any Graph with a Disk [PDF]
Proceedings of the American Mathematical Society, 1990 We prove that the only compact 3 3 -manifold-with-boundary which has trivial rational homology, and which embeds in the product of a graph with a disk, is the 3 3 -ball. This implies that no punctured lens space embeds in the product of a graph with a disk. It also implies our title.
openaire +1 more source
Formulation Of Quantum Mechanics On Poincaré Disks
, 2021 The unexploited unification of general relativity and quantum mechanics (QM) prevents the proper understanding of the micro- and macroscopic world. Here we put forward a mathematical approach that introduces the problem in terms of negative curvature manifolds.
openaire