Zobrazeno 1 - 10
of 715
pro vyhledávání: '"Citti, P"'
We model the functional architecture of the early stages of three-dimensional vision by extending the neurogeometric sub-Riemannian model for stereo-vision introduced in \cite{BCSZ23}. A new framework for correspondence is introduced that integrates
Externí odkaz:
http://arxiv.org/abs/2410.02870
We prove the local Lipschitz regularity for solutions to an orthotropic $q$ Laplacian-type equation in the Heisenberg group. The technique we apply is largely inspired by the works of X. Zhong, where the $q$-Laplacian was studied in the Heinsenberg g
Externí odkaz:
http://arxiv.org/abs/2407.07548
Autor:
Citti, Giovanna, Sarti, Alessandro
In a joint paper, Jean Petitot together with the authors of the present paper described the functional geometry of the visual cortex as the symplectization of a contact form to describe the family of cells sensitive to position, orientation and scale
Externí odkaz:
http://arxiv.org/abs/2310.16056
In this paper we propose a neurogeometrical model of the behaviour of cells of the arm area of the primary motor cortex (M1). We mathematically express the hypercolumnar organization of M1 discovered by Georgopoulos, as a fiber bundle, as in classica
Externí odkaz:
http://arxiv.org/abs/2306.08005
Autor:
Citti, Giovanna, Stroffolini, Bianca
We study the regularity properties of a general second order H\"ormander operator with Dini continous coefficients $a_{ij}$. Precisely if $X_0, X_1,\cdots X_m$ are smooth self adjoint vector fields satisfying the H\"ormander condition, we consider th
Externí odkaz:
http://arxiv.org/abs/2306.02799
Autor:
Circelli, Michele, Citti, Giovanna
We adapt the problem of continuous congested optimal transport to the Heisenberg group with a sub-riemannian metric: we restrict the set of admissible paths to the absolutely continuous curves which are also horizontal. We get the existence of equili
Externí odkaz:
http://arxiv.org/abs/2303.16052
Autor:
Gloria Spampinato, Francesco Candeliere, Alberto Amaretti, Roberta Paris, Massimo Montanari, Nino Virzì, Lorenzo Strani, Cinzia Citti, Giuseppe Cannazza, Maddalena Rossi, Stefano Raimondi
Publikováno v:
Journal of Cannabis Research, Vol 6, Iss 1, Pp 1-11 (2024)
Abstract Background The use of industrial Cannabis sativa L. for recreational, cosmeceutical, nutraceutical, and medicinal purposes has gained momentum due to its rich content of valuable phytochemicals, such as cannabidiol (CBD) and cannabigerol (CB
Externí odkaz:
https://doaj.org/article/0ac6ecd6d6884e54a8e32a5a09e4d3f9
Publikováno v:
Journal of Cannabis Research, Vol 6, Iss 1, Pp 1-34 (2024)
Abstract Since its discovery as one of the main components of cannabis and its affinity towards the cannabinoid receptor CB1, serving as a means to exert its psychoactivity, Δ9-tetrahydrocannabinol (Δ9-THC) has inspired medicinal chemists throughou
Externí odkaz:
https://doaj.org/article/b802588da5c44483a31b9dcde71583c4
In this paper, we propose a model of arm reaching movements expressed in terms of geodesics in a sub-Riemannian space. We will choose a set of kinematic variables to which motor cortical cells are selective with the purpose of modelling the specific
Externí odkaz:
http://arxiv.org/abs/2301.05765
Classical good continuation for image curves is based on $2D$ position and orientation. It is supported by the columnar organization of cortex, by psychophysical experiments, and by rich models of (differential) geometry. Here we extend good continua
Externí odkaz:
http://arxiv.org/abs/2301.04542