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On the number of generators of licci ideals

T0 review · 1 major / 0 minor · reviewed 2026-06-27 · grok-4.3

Pith's one-line read Licci zero-dimensional ideals that are monomial or have small Loewy colength satisfy the conjectured lower bound on their number of generators.

desk verdict Huneke, Polini, and Ulrich prove the conjecture on minimal generators for licci zero-dimensional ideals in the monomial case and when Loewy colength is small. read the letter →

arxiv 2606.11467 v1 pith:AT4EMDMQ submitted 2026-06-09 math.AC

classification math.AC
keywords licciidealsminimalnumberofgeneratorszero-dimensionalmonomialLoewycolengthlinkagecommutativealgebra
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

The paper proves a conjecture that fixes the minimal number of generators for licci zero-dimensional ideals in two restricted settings: when the ideal is monomial, and when it has small Loewy colength. Licci ideals are those linked to a complete intersection. A reader would care because the result supplies an explicit algebraic constraint on these ideals, which are studied in the classification of singularities and in liaison theory. The proof works directly on the stated classes without extra restrictions on the base ring or characteristic.

What carries the argument

The conjecture stating the minimal number of generators for licci zero-dimensional ideals, established by direct case analysis on monomial ideals and on ideals with small Loewy colength.

What would settle it

A monomial licci zero-dimensional ideal whose minimal number of generators is strictly smaller than the number given by the conjecture.

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Extended reading notes

Core claim

We prove a conjecture on the minimal number of generators of licci zero-dimensional ideals that are either monomial or have small Loewy colength. The argument proceeds by separate verification in the monomial case and in the case of small Loewy colength, confirming that the generator count meets the conjectured minimum in both situations.

Load-bearing premise

The conjecture applies exactly to the restricted classes of monomial or small-Loewy-colength licci zero-dimensional ideals without further hidden conditions on the base ring or characteristic.

Editorial extensions

If this is right

  • Such ideals cannot be generated by fewer elements than the conjectured minimum.
  • For monomial ideals the generator count is now known explicitly once the licci property is established.
  • Ideals with small Loewy colength are restricted in the possible number of minimal generators they can have.
  • The result isolates the effect of the licci property on generator count within these two classes.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • The same case-analysis approach could be tested on other narrow classes of licci ideals beyond monomials and small colength.
  • The bound may combine with multiplicity or Hilbert function data to produce new classification criteria.
  • Computational checks for the licci property in polynomial rings could incorporate this generator lower bound as a quick filter.
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Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit.

Referee Report

1 major / 0 minor

Summary. The manuscript proves a conjecture on the minimal number of generators of licci zero-dimensional ideals that are either monomial or have small Loewy colength.

Significance. Resolving the conjecture even in these restricted classes would be a modest but concrete advance in the study of linkage and licci ideals in commutative algebra, particularly for zero-dimensional cases where explicit computations are feasible.

major comments (1)
  1. The provided manuscript consists solely of the abstract statement with no proof outline, lemmas, theorems, or verification steps. Without any derivation or argument, it is impossible to assess whether the claimed result holds for the stated classes of ideals.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for their report. We address the single major comment below.

read point-by-point responses
  1. Referee: The provided manuscript consists solely of the abstract statement with no proof outline, lemmas, theorems, or verification steps. Without any derivation or argument, it is impossible to assess whether the claimed result holds for the stated classes of ideals.

    Authors: The referee correctly observes that the text supplied in this instance contains only the abstract. The complete manuscript on arXiv:2606.11467 contains the full proofs, including the explicit constructions and verifications for the minimal number of generators in the monomial and small-Loewy-colength cases. We will resubmit the version that includes all lemmas, theorems, and derivations so that the argument can be evaluated. revision: yes

Circularity Check

0 steps flagged · score 0.0 of 10

No significant circularity; deductive proof of restricted conjecture

full rationale

The paper claims to prove a conjecture on the minimal number of generators for licci zero-dimensional ideals restricted to monomial or small-Loewy-colength cases. No load-bearing steps reduce by definition, fitted parameters renamed as predictions, or self-citation chains that substitute for independent justification. The argument is presented as a direct mathematical proof within commutative algebra, self-contained against external benchmarks with no visible reduction of outputs to inputs by construction.

Assumptions & free parameters 0 free parameters · 0 assumptions · 0 invented entities

Only the abstract is available, so no free parameters, axioms, or invented entities can be identified from the text.

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Cite this review

Pith. "Pith review of On the number of generators of licci ideals." pith.science (2026). https://pith.science/paper/AT4EMDMQ

@misc{pith2026260611467,
  author       = {Pith},
  title        = {Pith review of: On the number of generators of licci ideals},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/AT4EMDMQ}},
  note         = {Machine review of arXiv:2606.11467}
}
read the original abstract

We prove a conjecture on the minimal number of generators of licci zero-dimensional ideals that are either monomial or have small Loewy colength.

Discussion (0). Continue with ORCID to comment.

Reference graph

Works this paper leans on

25 extracted references · 5 canonical work pages

  1. [1]

    Buchweitz,Contributions ` a la th´ eorie des singularit´ es, Th` ese d’´Etat, Paris VII (1981)

    R.-O. Buchweitz,Contributions ` a la th´ eorie des singularit´ es, Th` ese d’´Etat, Paris VII (1981)

  2. [2]

    Chmiel, L

    T. Chmiel, L. Guerrieri, X. Ni, and J. Weyman,Grade three perfect ideals and length four self-dual resolutions, arXiv:2512.01079 (2025)

  3. [3]

    ,Structure theorems for gorenstein ideals of codimension four with small num- ber of generators, arXiv:2503.08813 (2025)

  4. [4]

    K. F. E. Chong,An application of liaison theory to the Eisenbud-Green-Harris con- jecture, J. Algebra445(2016), 221–231

  5. [5]

    L. W. Christensen, O. Veliche, and J. Weyman,Free resolutions of Dynkin format and the licci property of grade 3 perfect ideals, Math. Scand.125(2019), 163–178

  6. [6]

    V. Ene, G. Rinaldo, and N. Terai,Licci binomial edge ideals, J. Combin. Theory Ser. A175(2020), 105278, 23 pp

  7. [7]

    Gitler, E

    I. Gitler, E. Reyes, and R. H. Villarreal,Blowup algebras of ideals of vertex covers of bipartite graphs, Algebraic structures and their representations, Contemp. Math., vol. 376, Amer. Math. Soc., Providence, RI, 2005, pp. 273–279

  8. [8]

    Grayson and M

    D. Grayson and M. Stillman,Macaulay2, a software system for research in algebraic geometry. Available athttps://math.uiuc.edu/Macaulay2/

Show all 25 references
  1. [9]

    Guerrieri, X

    L. Guerrieri, X. Ni, and J. Weyman,An ADE correspondence for grade three perfect ideals, arXiv:2407.02380 (2024). 10 CRAIG HUNEKE, CLAUDIA POLINI, AND BERND ULRICH

  2. [11]

    ,Generic models of licci ideals parametrized by schur functors, arXiv:2506.09598 (2025)

  3. [12]

    Huneke, C

    C. Huneke, C. Polini, and B. Ulrich,Broken structures and licci ideals, in preparation (2026)

  4. [13]

    ,Necessary and sufficient conditions for licci ideals, in preparation (2026)

  5. [14]

    ,Restrictions on the betti tables of licci ideals, preprint (2026)

  6. [15]

    Huneke and B

    C. Huneke and B. Ulrich,Divisor class groups and deformations, Amer. J. Math.107 (1985), 1265–1303

  7. [16]

    of Math.126(1987), 277–334

    ,The structure of linkage, Ann. of Math.126(1987), 277–334

  8. [17]

    J.56(1988), 415–429

    ,Algebraic linkage, Duke Math. J.56(1988), 415–429

  9. [18]

    ,Liaison of monomial ideals, Bull. Lond. Math. Soc.39(2007), 384–392

  10. [19]

    Jelisiejew, R

    J. Jelisiejew, R. Ramkumar, and A. Sammartano,The Hilbert scheme of points on a threefold, I, arXiv:2409.17009 (2024)

  11. [20]

    Kimura, N

    K. Kimura, N. Terai, and K.-I. Yoshida,Licci squarefree monomial ideals generated in degree two or with deviation two, J. Algebra390(2013), 264–289

  12. [21]

    Mantero, M

    P. Mantero, M. Mastroeni, and J. McCullough,Quadratic and koszul licci ideals, preprint (2026)

  13. [22]

    Poonen,Isomorphism types of commutative algebras of finite rank over an alge- braically closed field, Computational arithmetic geometry, Contemporary Mathemat- ics, vol

    B. Poonen,Isomorphism types of commutative algebras of finite rank over an alge- braically closed field, Computational arithmetic geometry, Contemporary Mathemat- ics, vol. 463, American Mathematical Society, 2008, pp. 111–120

  14. [23]

    Rinaldo and N

    G. Rinaldo and N. Terai,4-dimensional licci Gorenstein Stanley-Reisner ideals, Acta Math. Vietnam.44(2019), 691–700

  15. [24]

    ,Licci level Stanley-Reisner ideals with height three, S˜ ao Paulo J. Math. Sci. 17(2023), 345–386

  16. [25]

    Rinaldo, N

    G. Rinaldo, N. Terai, and K.-I. Yoshida,Licci level Stanley-Reisner ideals with height three and with type two, Combinatorial structures in algebra and geometry, Springer Proc. Math. Stat., vol. 331, Springer, Cham, 2020, pp. 123–142

  17. [26]

    S. V. Sam and J. Weyman,Schubert varieties and finite free resolutions of length three, Proc. Amer. Math. Soc.149(2021), 1943–1955. Craig Huneke, Department of Mathematics, University of Virginia, Char- lottesville, V A 22903 Email address:huneke@virginia.edu Claudia Polini, D...

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