Luis Fernando Ragognette

Publications:

G. Araújo, I.A. Ferra and L.F. Ragognette, Global hypoellipticity of sums of squares on compact manifolds,  J. Inst. Math. Jussieu. 23(5), 2405-2439 (2024). See also: arXiv:2005.04484.

G. Araújo, I.A. Ferra, M.R.  Jahnke and L.F. Ragognette, Global solvability and cohomology of tube structures on compact manifolds, Math. Ann. 390, 2199–2233 (2024).  See also:  arXiv:2304.10472

G. Araújo, I.A. Ferra and L.F. Ragognette, Global analytic hypoellipticity and solvability of certain operators subject to group actions,  Proc. Amer. Math. Soc. 150, 4771-4783, (2022).  See also arXiv:2111.07165.

G. Araújo, I.A. Ferra and L.F. Ragognette, Global solvability and propagation of regularity of sums of squares on compact manifolds,  J. Anal. Math. 148, 85-118  (2022). See also arXiv:2010.05364.

G. Hoepfner, R.D. Medrado and L.F. Ragognette, The Baouendi-Treves approximation theorem for Gevrey classes and applications, Ann Sc. Norm. Super. Pisa Cl. Sci. (5) 23, no. 1, 315–338 (2022). See also arXiv:1910.14568.

G. Hoepfner and L.F. Ragognette, A new microlocal analysis of hyperfunctions, J. Funct. Anal.  281, 4, 109065 (2021). See also arXiv:2104.11047.

L.F. Ragognette, Ultradifferential operators in the study of Gevrey solvability and regularity, Math. Nachr. 292, 409–427 (2019).

Submitted: 

B. Lessa Victor, L.F. Ragognette, Relations between different types of hypoellipticity: a systematic approach, (2025). See also arXiv:2505.11801