Zobrazeno 1 - 10
of 1 587
pro vyhledávání: '"Galuppi A."'
In this paper, we study the symmetric rank of products of linear forms and an irreducible quadratic form. The main result presents a new, non-trivial lower bound for the rank, and the arguments rely on the apolarity lemma. In the special case of degr
Externí odkaz:
http://arxiv.org/abs/2410.20390
The signature of a path is a sequence of tensors which allows to uniquely reconstruct the path. In this paper we propose a systematic study of basic properties of signature tensors, starting from their rank, symmetries and conciseness. We prove a sha
Externí odkaz:
http://arxiv.org/abs/2407.20405
We prove that Segre-Veronese varieties are never secant defective if each degree is at least three. The proof is by induction on the number of factors, degree and dimension. As a corollary, we give an almost optimal non-defectivity result for Segre-V
Externí odkaz:
http://arxiv.org/abs/2406.20057
After a few results on curves, we characterize the smallest nonempty Terracini loci of Veronese and Segre-Veronese varieties. For del Pezzo surfaces, we give a full description of the Terracini loci. Moreover, we present an algorithm to explicitly co
Externí odkaz:
http://arxiv.org/abs/2311.09067
Autor:
Améndola, Carlos, Galuppi, Francesco, Ortiz, Ángel David Ríos, Santarsiero, Pierpaola, Seynnaeve, Tim
The signature of a path is a sequence of tensors whose entries are iterated integrals, playing a key role in stochastic analysis and applications. The set of all signature tensors at a particular level gives rise to the universal signature variety. W
Externí odkaz:
http://arxiv.org/abs/2308.11571
We lay the geometric foundations for the study of the characteristic polynomial of tensors. For symmetric tensors of order $d \geq 3$ and dimension $2$ and symmetric tensors of order $3$ and dimension $3$, we prove that only finitely many tensors sha
Externí odkaz:
http://arxiv.org/abs/2308.10957
Autor:
Agostini, V., Arcese, B., Ascani, N., Astone, P., Bocci, V., Caperna, S., Casaburo, F., Cerica, A., D'Auria, C., De Bonis, G., Deda, D., Di Mauro, F., Di Vico, A., Faccini, R., Frasca, L., Galuppi, G., Giovannetti, G., Iacoangeli, F., Ludovici, G., Martone, L., Marucci, B., Mizzoni, L., Moriconi, A., Organtini, G., Piacentini, F., Pietrobono, A., Pongelli, F., Severa, F., Vona, D.
Whitin Istituto Nazionale di Fisica Nucleare (INFN) outreach activities, the Lab2Go project is of great significance. Its goal is involving high school teachers and students in several laboratory activities, aiming at increasing the weight of experim
Externí odkaz:
http://arxiv.org/abs/2301.12948
Autor:
Ariane Marelli, Ronen Rozenblum, Clara Bolster-Foucault, Alicia Via-Dufresne Ley, Noemie Maynard, Khush Amaria, Barb Galuppi, Sonya Strohm, Linda Nguyen, Claire Dawe-McCord, Connie Putterman, Adrienne H Kovacs, Jan Willem Gorter
Publikováno v:
JMIR Pediatrics and Parenting, Vol 7, p e51606 (2024)
BackgroundTransition from pediatric to adult health care varies and is resource intensive. Patient-centered health information technology (HIT) interventions are increasingly being developed in partnership with patients. ObjectiveThis study aims to
Externí odkaz:
https://doaj.org/article/4f85bbd9799545ac99c944941bd872c0
Autor:
Filippo Maria Dini, Monica Caffara, Alice Magri, Alessia Cantori, Valentina Luci, Antonio Monno, Roberta Galuppi
Publikováno v:
International Journal for Parasitology: Parasites and Wildlife, Vol 24, Iss , Pp 100939- (2024)
Synanthropic rodents play a crucial role in maintaining the life cycle of Toxoplasma gondii in anthropized regions and can serve as indicators of environmental oocyst contamination. This investigation aimed to explore the occurrence of T. gondii infe
Externí odkaz:
https://doaj.org/article/ef9cfe7123ea4a41b49acdc6a332bcaa
We study schemes of tensor eigenvectors from an algebraic and geometric viewpoint. We characterize determinantal defining equations of such eigenschemes via linear equations in their coefficients, both in the general and in the symmetric case. We giv
Externí odkaz:
http://arxiv.org/abs/2205.04413