Zobrazeno 1 - 10
of 3 836
pro vyhledávání: '"de Stefani, A."'
Autor:
De Stefani, Alessandro, Smirnov, Ilya
We prove a characterization of F-rationality in terms of tight closure of products of parameter ideals. Our results are inspired by the theory of complete ideals for surfaces and, in particular, the fundamental results of Lipman-Teissier and Cutkosky
Externí odkaz:
http://arxiv.org/abs/2411.03167
It is shown that $S(G) = O\left(m/\log_2 m + d\right)$ pebbles are sufficient to pebble any DAG $G=(V,E)$, with $m$ edges and maximum in-degree $d$. It was previously known that $S(G) = O\left(d n/\log n\right)$. The result builds on two novel ideas.
Externí odkaz:
http://arxiv.org/abs/2410.20547
Autor:
De Stefani, Lorenzo, Gupta, Vedant
Asymptotically tight lower bounds are derived for the Input/Output (I/O) complexity of a class of dynamic programming algorithms including matrix chain multiplication, optimal polygon triangulation, and the construction of optimal binary search trees
Externí odkaz:
http://arxiv.org/abs/2410.20337
In this article we obtain uniform effective upper bounds for the projective dimension and the Castelnuovo-Mumford regularity of homogeneous ideals inside a standard graded polynomial ring $S$ over a field. Such bounds are independent of the number of
Externí odkaz:
http://arxiv.org/abs/2409.12787
Let $(R,\mathfrak{m})$ be a complete local ring, and $G={\rm gr}_{\mathfrak{m}}(R)$ be its associated graded ring. We introduce a homogenization technique which allows to relate $G$ to the special fiber and $R$ to the generic fiber of a "Gr\"obner-li
Externí odkaz:
http://arxiv.org/abs/2406.16421
Autor:
Jéssica de Oliveira Veloso Rezende, Michel Batista, Kelly Cavalcanti Machado, Thiago Bousquet Bandini, Igor Alexandre Côrtes de Menezes, Fernanda do Carmo De Stefani, Marlon Dias Mariano Santos, Paulo Costa Carvalho, Louise Ulrich Kurt, Rodrigo Soares Caldeira Brant, Luis Gustavo Morello, Fabricio Klerynton Marchini
Publikováno v:
Scientific Data, Vol 11, Iss 1, Pp 1-8 (2024)
Abstract This data descriptor presents a curated dataset for pathogen detection and identification (Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans) directly from whole-blood samples. The dataset was created using differential cel
Externí odkaz:
https://doaj.org/article/92ee313a22c746fdbe9b523bc0c3ee6e
The purpose of this note is to show that a finitely generated graded module $M$ over $S=k[x_1,\ldots,x_n]$, $k$ a field, is sequentially Cohen-Macaulay if and only if its arithmetic degree ${\rm adeg}(M)$ agrees with ${\rm adeg}(F/{\rm gin}_{revlex}(
Externí odkaz:
http://arxiv.org/abs/2307.14483
Autor:
Manila Caragiuli, Mara Candelari, Francesca Zalunardo, Giovanni Bruno, Alberto De Stefani, Agnese Brunzini, Marco Mandolini
Publikováno v:
International Dental Journal, Vol 74, Iss 6, Pp 1306-1316 (2024)
Background and objective: In the literature, no studies correlate the effects of mandibular advancement devices (MADs) with different titration systems to periodontitis. Through a finite element analysis (FEA), this study investigates the effects gen
Externí odkaz:
https://doaj.org/article/ecd7a5ea3faa48419f03552407c70a3d
Autor:
De Stefani, Alessandro, Montaño, Jonathan, Núñez-Betancourt, Luis, Seccia, Lisa, Varbaro, Matteo
In this article we show that the symbolic Rees algebra of a mixed ladder determinantal ideal is strongly $F$-regular. Furthermore, we prove that the symbolic associated graded algebra of a mixed ladder determinantal ideal is $F$-pure. The latter impl
Externí odkaz:
http://arxiv.org/abs/2305.18167
The rate of a standard graded $K$-algebra $A$ is a measure of the growth of the shifts in a minimal free resolution of $K$ as an $A$-module. In particular $A$ has rate one if and only if it is Koszul. It is known that a generic Artinian Gorenstein al
Externí odkaz:
http://arxiv.org/abs/2304.14842