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The asymptotic behavior of graded Betti numbers of powers of homogeneous ideals in a polynomial ring over a field has recently been reviewed. We extend quasi polynomial behavior of graded Betti numbers of powers of homogenous ideals to…

Commutative Algebra · Mathematics 2018-02-13 Kamran Lamei , Siamak Yassemi

Let $L$ be a solvable Lie algebra of dimension less than or equal to 4 over finite fields. We compute and record, in explicit symbolic form, the zeta functions enumerating subalgebras or ideals of $L$, and study their properties. We also…

Rings and Algebras · Mathematics 2026-02-19 Seungjai Lee

In this article, we study local zeta functions over non-Archimedean locals fields of arbitrary characteristic attached to rational functions and characters $\chi$ of the units of the ring of integers $\mathcal{O}_{K}$, by using an approach…

Number Theory · Mathematics 2020-08-03 M. Bocardo-Gaspar

The local topological zeta function is a rational function associated to a germ of a complex holomorphic function. This function can be computed from an embedded resolution of singularities of the germ. For nondegenerate functions it is…

Algebraic Geometry · Mathematics 2008-05-14 Ann Lemahieu , Lise Van Proeyen

In this paper, we give a description of the possible poles of the local zeta function attached to a complex or real analytic mapping in terms of a log-principalization of an ideal associated to the mapping. When the mapping is a…

Algebraic Geometry · Mathematics 2014-02-26 E. Leon-Cardenal , Willem Veys , W. A. Zuniga-Galindo

Let f be a regular function on a nonsingular complex algebraic variety of dimension d. We prove a formula for the motivic zeta function of f in terms of an embedded resolution. This formula is over the Grothendieck ring itself, and…

Algebraic Geometry · Mathematics 2012-09-18 Dirk Segers , Lise Van Proeyen , Willem Veys

With every $\sigma$-ideal $I$ on a Polish space we associate the $\sigma$-ideal $I^*$ generated by the closed sets in $I$. We study the forcing notions of Borel sets modulo the respective $\sigma$-ideals $I$ and $I^*$ and find connections…

Logic · Mathematics 2010-01-19 Marcin Sabok , Jindrich Zapletal

Let $X \subset Y$ be closed (possibly singular) subschemes of a smooth projective toric variety $T$. We show how to compute the Segre class $s(X,Y)$ as a class in the Chow group of $T$. Building on this, we give effective methods to compute…

Algebraic Geometry · Mathematics 2019-05-31 Corey Harris , Martin Helmer

We construct a nonminimal graded free resolution of Segre embeddings of $P^1\times P^1$, although we don't compute all maps. We use this to prove an explicit formula for certain nonzero entries in the graded Betti table, at the end of the…

Algebraic Geometry · Mathematics 2018-01-23 Alexander Lemmens

We study the syzygies of secant ideals of Veronese subrings of a fixed commutative graded algebra over a field of characteristic 0. One corollary is that the degrees of the minimal generators of the ith syzygy module of the coordinate ring…

Commutative Algebra · Mathematics 2017-07-25 Steven V Sam

We introduce mixed Segre numbers of ideals which generalize the notion of mixed multiplicities of ideals of finite colength and show how many results on mixed multiplicities can be extended to results on mixed Segre numbers. In particular,…

alg-geom · Mathematics 2008-02-03 Robert Gassler

Let $I$ be a homogeneous ideal in a polynomial ring over a field. Let $I^{(n)}$ be the $n$-th symbolic power of $I$. Motivated by results about ordinary powers of $I$, we study the asymptotic behavior of the regularity function $\text{reg}~…

Commutative Algebra · Mathematics 2021-05-11 Le Xuan Dung , Truong Thi Hien , Hop D. Nguyen , Tran Nam Trung

The index of a graded ideal measures the number of linear steps in the graded minimal free resolution of the ideal. In this paper we study the index of powers and squarefree powers of edge ideals. Our results indicate that the index as a…

Commutative Algebra · Mathematics 2021-03-17 Mina Bigdeli , Juergen Herzog , Rashid Zaare-Nahandi

We study zeta functions enumerating submodules invariant under a given endomorphism of a finitely generated module over the ring of ($S$-)integers of a number field. In particular, we compute explicit formulae involving Dedekind zeta…

Number Theory · Mathematics 2016-06-03 Tobias Rossmann

Over a field of characteristic zero, we prove that for each r, there exists a constant C(r) so that the prime ideal of the rth secant variety of any Veronese embedding of any projective space is generated by polynomials of degree at most…

Commutative Algebra · Mathematics 2017-01-12 Steven V Sam

In this paper, we prove the moving lemma, addition and subtraction principles, in a more general setup than the available ones. We apply these results to explore a question of Nori on homotopy of sections of projective modules. As another…

Commutative Algebra · Mathematics 2014-08-13 Mrinal K. Das , M. K. Keshari

The zeta function of a motive over a finite field is multiplicative with respect to the direct sum of motives. It has beautiful analytic properties, as were predicted by the Weil conjectures. There is also a multiplicative zeta function,…

K-Theory and Homology · Mathematics 2017-05-04 Oliver Braunling

Consider a height two ideal, $I$, which is minimally generated by $m$ homogeneous forms of degree $d$ in the polynomial ring $R=k[x,y]$. Suppose that one column in the homogeneous presenting matrix $\f$ of $I$ has entries of degree $n$ and…

Commutative Algebra · Mathematics 2008-12-31 Andrew R. Kustin , Claudia Polini , Bernd Ulrich

We consider ideals in a polynomial ring that are generated by regular sequences of homogeneous polynomials and are stable under the action of the symmetric group permuting the variables. In previous work, we determined the possible…

Commutative Algebra · Mathematics 2019-08-15 Federico Galetto , Anthony V. Geramita , David L. Wehlau

Given a projective variety X defined over a finite field, the zeta function of divisors attempts to count all irreducible, codimension one subvarieties of X, each measured by their projective degree. When the dimension of X is greater than…

Number Theory · Mathematics 2008-08-04 C. Douglas Haessig