Very well-covered graphs via the Rees algebra. (English) Zbl 1542.13004
Reviewer: Cristodor-Paul Ionescu (Bucureşti)
Found 192 Documents (Results 1–100)
On Rees algebras of 2-determinantal ideals. (English) Zbl 1539.13015
Reviewer: Marko Radovanović (Beograd)
On the genus of projective curves not contained in hypersurfaces of given degree. (English) Zbl 1530.14100
Reviewer: Edoardo Ballico (Povo)
Cayley sums and Minkowski sums of lattice polytopes. (English) Zbl 1518.52006
Reviewer: Rolf Schneider (Freiburg im Breisgau)
The genus of curves in \(\mathbb{P}^4\) and \(\mathbb{P}^5\) not contained in quadrics. (English) Zbl 1516.14099
Reviewer: Scott Nollet (Fort Worth)
Normal Hilbert coefficients and elliptic ideals in normal two-dimensional singularities. (English) Zbl 1507.13020
Reviewer: Daiane Alice Henrique Ament (Lavras)
Fiber cones of rational normal scrolls are Cohen-Macaulay. (English) Zbl 1498.13025
Reviewer: Tongsuo Wu (Shanghai)
Algebras defined by Lyndon words and Artin-Schelter regularity. (English) Zbl 1512.16013
Reviewer: Dmitry Artamonov (Moskva)
\(H\)-instanton bundles on three-dimensional polarized projective varieties. (English) Zbl 1483.14078
Reviewer: Joan Pons-Llopis (Maó)
The canonical module of GT-varieties and the normal bundle of RL-varieties. (English) Zbl 1483.14084
Reviewer: Emilia Mezzetti (Trieste)
Pullback of the normal module of ideals with low codimension. (English) Zbl 1481.13010
Reviewer: Amir Mafi (Sanandaj and Tehran)
Algebras and varieties. (English) Zbl 1490.16035
A filtration of the Sally module and the first normal Hilbert coefficient. (English) Zbl 1458.13016
Reviewer: Amir Mafi (Sanandaj and Tehran)
On \(p_g\)-ideals. (English) Zbl 1454.13007
Symmetric decomposition of the associated graded algebra of an Artinian Gorenstein algebra. (English) Zbl 1453.13067
Reviewer: Juan C. Migliore (Notre Dame)
Tight closure of powers of ideals and tight Hilbert polynomials. (English) Zbl 1478.13008
Reviewer: Florian Enescu (Atlanta)
On the structure of the Sally module and the second normal Hilbert coefficient. (English) Zbl 1436.13033
Reviewer: Monica La Barbiera (Messina)
Ulrich bundles on smooth projective varieties of minimal degree. (English) Zbl 1427.14088
Reviewer: Luca Chiantini (Siena)
New Artin-Schelter regular and Calabi-Yau algebras via normal extensions. (English) Zbl 1428.14007
Reviewer: Arvid Siqveland (Kongsberg)
Non-commutative resolutions of toric varieties. (English) Zbl 1423.13075
Reviewer: Arvid Siqveland (Kongsberg)
Correspondence scrolls. (English) Zbl 1456.14048
Reviewer: Nicolae Manolache (Bucureşti)
On the computation of the Ratliff-Rush closure, associated graded ring and invariance of a length. (English) Zbl 1410.13002
Reviewer: Catalin Ciuperca (Fargo)
Uniform Harbourne-Huneke bounds via flat extensions. (English) Zbl 1401.13074
Reviewer: Piotr Pokora (Kraków)
Toward a theory of monomial preorders. (English) Zbl 1391.13053
Reviewer: Thomas Ernst (Uppsala)
Relative Hilbert co-efficients. (English) Zbl 1386.13015
Reviewer: Shreedevi K. Masuti (Genova)
Gorenstein binomial edge ideals associated with scrolls. (English) Zbl 1375.13044
Reviewer: Peter Schenzel (Halle)
Examples of non-commutative crepant resolutions of Cohen Macaulay normal domains. (English) Zbl 1368.14004
Reviewer: Gerhard Pfister (Kaiserslautern)
Rees algebras and \(p_g\)-ideals in a two-dimensional normal local domain. (English) Zbl 1357.13011
Reviewer: Catalin Ciuperca (Fargo)
On the normal sheaf of determinantal varieties. (English) Zbl 1352.14033
Reviewer: Juan C. Migliore (Notre Dame)
An analogue of the Aluffi algebra for modules. (English) Zbl 1354.13010
Reviewer: Catalin Ciuperca (Fargo)
On complete monomial ideals. (English) Zbl 1353.13006
Reviewer: Mohammad-Reza Doustimehr (Tabriz)
Bounds on the normal Hilbert coefficients. (English) Zbl 1338.13010
Reviewer: Ri-xiang Chen (Nanjing)
Classification of 2-dimensional graded normal hypersurfaces with \(a(R) \leq 6\). (English) Zbl 1317.13003
Reviewer: Tomohiro Okuma (Yamagata)
On syzygies of divisors on rational normal scrolls. (English) Zbl 1310.14046
Reviewer: Juan C. Migliore (Notre Dame)
Computing families of Cohen-Macaulay and Gorenstein rings. (English) Zbl 1319.13016
Reviewer: Pedro A. García Sánchez (Granada)
Commuting varieties of \(r\)-tuples over Lie algebras. (English) Zbl 1298.20056
Reviewer: Christopher P. Bendel (Menomonie)
Toric ideals generated by circuits. (English) Zbl 1280.13006
Reviewer: Marcel Morales (Saint-Martin-d’Hères)
A class of AS-regular algebras of dimension five. (English) Zbl 1271.16014
Reviewer: Vyacheslav A. Artamonov (Moskva)
Integrally closed ideals in regular local rings of dimension two. (English) Zbl 1232.13003
Reviewer: Siamak Yassemi (Tehran)
The positivity of the first coefficients of normal Hilbert polynomials. (English) Zbl 1230.13020
Reviewer: Marcel Morales (Saint-Martin-d’Hères)
Buchsbaum varieties with next to sharp bounds on Castelnuovo-Mumford regularity. (English) Zbl 1215.13009
Arithmetically Cohen-Macaulay bundles on complete intersection varieties of sufficiently high multidegree. (English) Zbl 1200.14082
Reviewer: N. Mohan Kumar (St. Louis)
Some remarks on factorial quotient rings. (English) Zbl 1174.13030
Reviewer: Martin Kreuzer (Passau)
Duality, \(a\)-invariants and canonical modules of rings arising from linear optimization problems. (English) Zbl 1199.13026
Reviewer: Juan C. Migliore (Notre Dame)
Totally reflexive modules constructed from smooth projective curves of genus \(g \geq 2\). (English) Zbl 1125.13006
Reviewer: Peter Schenzel (Halle)
Families of Artinian and one-dimensional algebras. (English) Zbl 1129.14009
Reviewer: Juan C. Migliore (Notre Dame)
Regular algebras of dimension 4 and their \(A_\infty\)-Ext-algebras. (English) Zbl 1193.16014
Reviewer: Vyacheslav A. Artamonov (Moskva)
Maximal families of Gorenstein algebras. (English) Zbl 1103.14005
Reviewer: Juan C. Migliore (Notre Dame)
Depth of associated graded rings via Hilbert coefficients of ideals. (English) Zbl 1103.13005
Reviewer: Yoshiaki Fukuma (Kochi)
Quantum projective 3-spaces which embed weighted quantum planes. (English) Zbl 1079.16032
Reviewer: Vyacheslav A. Artamonov (Moskva)
Toric initial ideals of \(\Delta\)-normal configurations: Cohen-Macaulayness and degree bounds. (English) Zbl 1082.13017
Reviewer: Marcel Morales (Saint-Martin-d’Heres)
On the existence of \(k\)-normal curves of given degree and genus in projective spaces. (English) Zbl 1075.14028
Reviewer: Alberto Dolcetti (Ferrara)
MSC:
14H50
Smoothness of Hilbert scheme in low degree. (Lissité du schéma de Hilbert en bas degré). (French) Zbl 1062.14009
Reviewer: Vincenzo Di Gennaro (Roma)
On the sectional geometric genus of quasi-polarized varieties. II. (English) Zbl 1080.14013
Reviewer: Vincenzo Di Gennaro (Roma)
Uniqueness of varieties of minimal degree containing a given scheme. (English) Zbl 1046.14026
Reviewer: Juan C. Migliore (Notre Dame)
Multiplicity-free subvarieties of flag varieties. (English) Zbl 1052.14055
Avramov, Luchezar L. (ed.) et al., Commutative algebra. Interactions with algebraic geometry. Proceedings of the international conference, Grenoble, France, July 9–13, 2001 and the special session at the joint international meeting of the American Mathematical Society and the Société Mathématique de France, Lyon, France, July 17–20, 2001. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-3233-6/pbk). Contemp. Math. 331, 13-23 (2003).
Reviewer: Shrawan Kumar (Chapel Hill)
Some normal monomial ideals. (English) Zbl 1038.13006
Melles, Caroline Grant (ed.) et al., Topics in algebraic and noncommutative geometry. Proceedings in memory of Ruth Michler, Luminy, France, July 20–22, 2001 and Annapolis, MD, USA, October 25–28, 2001. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-3209-3/pbk). Contemp. Math. 324, 205-217 (2003).
Reviewer: Ngô Viêt Trung (Hanoi)
Gorenstein liaison of 0-dimensional schemes. (English) Zbl 1050.14039
Reviewer: Juan C. Migliore (Notre Dame)
Divisorial linear algebra of normal semigroup rings. (English) Zbl 1046.13014
Reviewer: Alireza Abdollahi (Isfahan)
Normal cones of monomial primes. (English) Zbl 1038.13008
Reviewer: Ngô Viêt Trung (Hanoi)
On certain finitely presented algebras and filtrations. (English) Zbl 1011.16032
Reviewer: José Gómez Torrecillas (Granada)
Cohen-Macaulay quotients of normal semigroup rings via irreducible resolutions. (English) Zbl 1044.13005
Reviewer: Ross P. Abraham (Brookings)
Canonical modules of semigroup rings and a conjecture of Reiner. (English) Zbl 1001.20053
Reviewer: Josif S.Ponizovskii (St.Peterburg)
On the construction of some Buchsbaum varieties and the Hilbert scheme of elliptic scrolls in \(\mathbb{P}^5\). (English) Zbl 1042.14022
On a sharp bound for the regularity index of any set of fat points. (English) Zbl 0994.14028
Reviewer: Juan C.Migliore (Notre Dame)
Direct-sum decompositions over local rings. (English) Zbl 0986.13010
Reviewer: Yoichi Aoyama (Matsue / Shimane)
Weil divisors on rational normal scrolls. (English) Zbl 0986.14031
Herzog, Jürgen (ed.) et al., Geometric and combinatorial aspects of commutative algebra. Papers based on lectures delivered at the international conference on commutative algebra and algebraic geometry, Messina, Italy, June 16-20, 1999. New York, NY: Marcel Dekker. Lect. Notes Pure Appl. Math. 217, 183-197 (2001).
Reviewer: Edoardo Ballico (Povo)
Induced formal deformations and the Cohen-Macaulay property. (English) Zbl 0962.13013
Reviewer: Dorin-Mihail Popescu (Bucureşti)
Noncommutative rational double points. (English) Zbl 0974.16022
Reviewer: Aleksandr G.Aleksandrov (Moskva)
On the structure of simplicial affine semigroups. (English) Zbl 0978.20035
Reviewer: Carlos Galindo (Castellon)
Non-Noetherian down-up algebras. (English) Zbl 0967.16013
Reviewer: David A.Jordan (Sheffield)
Curves on normal surfaces. (English) Zbl 0961.14018
Reviewer: V.Di Gennaro (Roma)
Universally Koszul algebras. (English) Zbl 0960.13003
Reviewer: Ladislav Bican (Praha)
Gourmet’s guide to Gorensteinness. (English) Zbl 0959.16008
Reviewer: T.H.Lenagan (Edinburgh)
On associated graded rings of normal ideals. (English) Zbl 0941.13003
Reviewer: Siamak Yassemi (Tehran)
On non-projective normal surfaces. (English) Zbl 0987.14031
Reviewer: Augusto Nobile (Baton Rouge)
Fat points on rational normal curves. (English) Zbl 0940.14035
Reviewer: C.Cumino (Torino)
Arithmetically Buchsbaum divisors on varieties of minimal degree. (English) Zbl 0941.14016
Reviewer: Peter Schenzel (Halle)
On the arithmetic of local rings of dimension 2 and 3. (Sur l’arithmétique des anneaux locaux de dimension 2 et 3.) (French) Zbl 0937.13006
Reviewer: C.Galindo (Castellon)
Graded algebras with respect to ideals generated by maximal pfaffians. (English. English summary) Zbl 0954.13005
Reviewer: Nicolae Radu (Bucureşti)
Pfaffian ideals of ladders. (English) Zbl 0899.13014
Reviewer: M.Morales (Saint-Martin-d’Heres)
Catenarity in a class of iterated skew polynomial rings. (English) Zbl 0872.16018
Reviewer: K.R.Goodearl (Santa Barbara)
Arithmetically Cohen-Macaulay curves in \(\mathbb{P}^4\) of degree 4 and genus 0. (English) Zbl 0905.14027
Reviewer: J.Migliore (Notre Dame)
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