Global solvability and cohomology of tube structures on compact manifolds

G Araújo, IA Ferra, MR Jahnke, LF Ragognette - Mathematische Annalen, 2024 - Springer
We introduce new techniques to study the differential complexes associated to tube
structures on M× T m of corank m, in which M is a compact manifold and T m is the m-torus …

Global analytic hypoellipticity of involutive systems on compact manifolds

G Araújo, PL Dattori da Silva, B Lessa Victor - Mathematische Annalen, 2023 - Springer
Given M a compact, connected and orientable, real-analytic manifold, and closed, real-
valued, real-analytic 1-forms ω 1,…, ω m on M, we characterize the global analytic …

Global analytic solvability of involutive systems on compact manifolds

G Araújo, PLD da Silva, B de Lessa Victor - The Journal of Geometric …, 2023 - Springer
Let M be a compact, connected, orientable and real-analytic manifold; consider closed, real-
valued, real-analytic 1-forms ω 1,…, ω m on M and the differential complex over M× T m …

Diagonal systems of differential operators on compact Lie groups

PLD da Silva, A Kirilov, RP da Silva - arXiv preprint arXiv:2412.16623, 2024 - arxiv.org
We investigate the global hypoellipticity and global solvability of systems of left-invariant
differential operators on compact Lie groups. Focusing on diagonal systems, we establish …

Class of hypocomplex structures on the two-dimensional torus

A Meziani, G Zugliani - Proceedings of the American Mathematical Society, 2019 - ams.org
We study the Hölder solvability of a class of complex vector fields on the torus $\mathbb {T}^
2$. We make use of the Theta function to associate a Cauchy-Pompeiu type integral …

A Gevrey differential complex on the torus

PLD da Silva, A Meziani - Journal of Fourier Analysis and Applications, 2020 - Springer
To a system of n closed one-forms on the torus T^ m+ n T m+ n, we associate a differential
complex and compute the induced cohomology groups in the s-Gevrey category, provided …

Global solvability of real analytic involutive systems on compact manifolds. Part 2

J Hounie, G Zugliani - Transactions of the American Mathematical Society, 2019 - ams.org
This work continues a previous study by Hounie and Zugliani on the global solvability of a
locally integrable structure of tube type and a corank one, considering a linear partial …

Tube structures of co-rank 1 with forms defined on compact surfaces

J Hounie, G Zugliani - The Journal of Geometric Analysis, 2021 - Springer
We study the global solvability of a locally integrable structure of tube type and co-rank 1 by
considering a linear partial differential operator LL associated to a general complex smooth …

Levi-flat CR structures on compact Lie groups

H Jacobowitz, MR Jahnke - Annals of Global Analysis and Geometry, 2023 - Springer
Abstract Pittie (Proc Indian Acad Sci Math Sci 98: 117-152, 1988) proved that the Dolbeault
cohomology of all left-invariant complex structures on compact Lie groups can be computed …