Results 11 to 20 of about 445 (23)

Herpes murine model as a biological assay to test dialyzable leukocyte extracts activity. [PDF]

open access: yesJ Immunol Res, 2015
Human dialyzable leukocyte extracts (DLEs) are heterogeneous mixtures of low‐molecular‐weight peptides that are released on disruption of peripheral blood leukocytes from healthy donors. DLEs improve clinical responses in infections, allergies, cancer, and immunodeficiencies.
Salinas-Jazmín N   +8 more
europepmc   +2 more sources

The strong nil-cleanness of semigroup rings

open access: yesOpen Mathematics, 2020
In this paper, we study the strong nil-cleanness of certain classes of semigroup rings. For a completely 0-simple semigroup M=ℳ0(G;I,Λ;P)M={ {\mathcal M} }^{0}(G;I,\text{Λ};P), we show that the contracted semigroup ring R0[M]{R}_{0}{[}M] is ...
Ji Yingdan
doaj   +1 more source

A generalization of Kruskal–Katona’s theorem

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
Let K be a field, E the exterior algebra of a finite dimensional K-vector space, and F a finitely generated graded free E-module with homogeneous basis g1, . . ., gr such that deg g1 ≤ deg g2 ≤ · · · ≤ deg gr.
Amata Luca, Crupi Marilena
doaj   +1 more source

Hilbert series and applications to graded rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 7, Page 397-403, 2003., 2003
This paper contains a number of practical remarks on Hilbert series that we expect to be useful in various contexts. We use the fractional Riemann‐Roch formula of Fletcher and Reid to write out explicit formulas for the Hilbert series P(t) in a number of cases of interest for singular surfaces (see Lemma 2.1) and 3‐folds. If X is a ℚ‐Fano 3‐fold and S ∈
Selma Altinok
wiley   +1 more source

Symbolic Powers of Monomial Ideals [PDF]

open access: yes, 2016
We investigate symbolic and regular powers of monomial ideals. For a square-free monomial ideal $I$ in $k[x_0, \ldots, x_n]$ we show $I^{t(m+e-1)-e+r)}$ is a subset of $M^{(t-1)(e-1)+r-1}(I^{(m)})^t$ for all positive integers $m$, $t$ and $r$, where $e ...
Cooper, Susan M.   +3 more
core   +1 more source

Distractions of Shakin rings [PDF]

open access: yes, 2013
We study, by means of embeddings of Hilbert functions, a class of rings which we call Shakin rings, i.e. quotients K[X_1,...,X_n]/a of a polynomial ring over a field K by ideals a=L+P which are the sum of a piecewise lex-segment ideal L, as defined by ...
Caviglia, Giulio, Sbarra, Enrico
core   +3 more sources

Some properties of graded comultiplication modules

open access: yesOpen Mathematics, 2017
Let G be a group with identity e. Let R be a G-graded commutative ring and M a graded R-module. In this paper we will obtain some results concerning the graded comultiplication modules over a commutative graded ring.
Al-Zoubi Khaldoun, Al-Qderat Amani
doaj   +1 more source

A Note on Formulas Transmuting Mixed Multiplicities

open access: yes, 2012
This paper establishes mixed multiplicity formulas concerning the relationship between mixed multiplicities of modules and mixed multiplicities of rings via rank of ...
Thanh, Truong Thi Hong, Viet, Duong Quoc
core   +1 more source

Modules with Pure Resolutions

open access: yes, 2017
We show that the property of a standard graded algebra R being Cohen-Macaulay is characterized by the existence of a pure Cohen-Macaulay R-module corresponding to any degree sequence of length at most depth(R).
Ananthnarayan, H., Kumar, Rajiv
core   +1 more source

The Noether number of the non-abelian group of order 3p [PDF]

open access: yes, 2012
It is proven that for any representation over a field of characteristic 0 of the non-abelian semidirect product of a cyclic group of prime order p and the group of order 3 the corresponding algebra of polynomial invariants is generated by elements of ...
Cziszter, K.
core  

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