Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Paolo Lella"'
Publikováno v:
Revista Matemática Iberoamericana. 38:761-782
We construct stable vector bundles on the space of symmetric forms of degree d in n+1 variables which are equivariant for the action of SL_{n+1}(C), and admit an equivariant free resolution of length 2. For n=1, we obtain new examples of stable vecto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0374c70fc2c903565fdba6437d6ded93
https://doi.org/10.4171/rmi/1307
https://doi.org/10.4171/rmi/1307
Autor:
Yuta Kambe, Paolo Lella
Publikováno v:
Annali di Matematica Pura ed Applicata (1923 -). 200:547-594
We give a notion of “combinatorial proximity” among strongly stable ideals in a given polynomial ring with a fixed Hilbert polynomial. We show that this notion guarantees “geometric proximity” of the corresponding points in the Hilbert scheme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d70d140a035a5fd681cc63aa02c672e1
https://doi.org/10.1007/s10231-020-01006-0
https://doi.org/10.1007/s10231-020-01006-0
Let $P_{\text{MAX}}(d,s)$ denote the maximum arithmetic genus of a locally Cohen-Macaulay curve of degree $d$ in $\mathbb{P}^3$ that is not contained in a surface of degree $
Comment: Ancillary Macaulay2 file attached. Comments are welcome
Comment: Ancillary Macaulay2 file attached. Comments are welcome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e09f2f9fc0f76c817396ae7dffa207ea
We present an alternate proof, much quicker and more straightforward than the original one, of the celebrated F-conjecture on the ample cone of the moduli space [Formula: see text] of stable rational curves with [Formula: see text] marked points in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a30d0592f1c047e3534d3656f540d0f
http://hdl.handle.net/2318/1651032
http://hdl.handle.net/2318/1651032
Publikováno v:
Journal of Symbolic Computation. 50:263-290
Let $J\subset S=K[x_0,...,x_n]$ be a monomial strongly stable ideal. The collection $\Mf(J)$ of the homogeneous polynomial ideals $I$, such that the monomials outside $J$ form a $K$-vector basis of $S/I$, is called a {\em $J$-marked family}. It can b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::219586d9347bcf47a641f6438c60dafd
https://doi.org/10.1016/j.jsc.2012.07.006
https://doi.org/10.1016/j.jsc.2012.07.006
Publikováno v:
Hartshorne, R; Lella, P; & Schlesinger, E. (2016). Smooth curves specialize to extremal curves. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/1kj8r7t3
Let $H_{d,g}$ denote the Hilbert scheme of locally Cohen-Macaulay curves of degree $d$ and genus $g$ in projective three space. We show that, given a smooth irreducible curve $C$ of degree $d$ and genus $g$, there is a rational curve $\{[C_t]: t \in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c95610b81a32b0477686944fd28515d
https://doi.org/10.1007/s00208-014-1065-z
https://doi.org/10.1007/s00208-014-1065-z
Autor:
Paolo Lella, Margherita Roggero
Publikováno v:
J. Commut. Algebra 8, no. 3 (2016), 367-410
The application of methods of computational algebra has recently introduced new tools for the study of Hilbert schemes. The key idea is to define flat families of ideals endowed with a scheme structure whose defining equations can be determined by al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84e6ae07cfee450cfa1ccbcc915929ce
https://doi.org/10.1216/jca-2016-8-3-367
https://doi.org/10.1216/jca-2016-8-3-367
Autor:
Paolo Lella, A. Ferrarese Lupi
Publikováno v:
Archaeometry. 55:296-311
This paper describes a particular statistical approach to chronological data from assemblages of archaeological finds (namely pottery) using Gaussian curves: the method enables us to obtain a graphic representation of chronological patterns that avoi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::961d8e88eab469c8c7a25fa67a0554e5
https://doi.org/10.1111/j.1475-4754.2012.00680.x
https://doi.org/10.1111/j.1475-4754.2012.00680.x
Publikováno v:
International Mathematics Research Notices
International Mathematics Research Notices, Oxford University Press (OUP), 2018, pp.5347-5377. ⟨10.1093/imrn/rnx032⟩
International Mathematics Research Notices, Oxford University Press (OUP), 2017, 〈10.1093/imrn/rnx032〉
International Mathematics Research Notices, Oxford University Press (OUP), 2018, pp.5347-5377. ⟨10.1093/imrn/rnx032⟩
International Mathematics Research Notices, Oxford University Press (OUP), 2017, 〈10.1093/imrn/rnx032〉
We give a new method to construct linear spaces of matrices of constant rank, based on truncated graded cohomology modules of certain vector bundles as well as on the existence of graded Artinian modules with pure resolutions. Our method allows one t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dd2f08710024b344317235e28ef1629
http://arxiv.org/abs/1505.04204
http://arxiv.org/abs/1505.04204
Let $K$ be an algebraically closed field of null characteristic and $p(z)$ a Hilbert polynomial. We look for the minimal Castelnuovo-Mumford regularity $m_{p(z)}$ of closed subschemes of projective spaces over $K$ with Hilbert polynomial $p(z)$. Expe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c78b2d883ffad933c6d8fef08495eedd
http://hdl.handle.net/2318/154059
http://hdl.handle.net/2318/154059