Results 41 to 50 of about 4,472,960 (363)
Generic Tropical Varieties [PDF]
We show that in the constant coefficient case the generic tropical variety of a graded ideal exists. This can be seen as the analogon to the existence of the generic initial ideal in Groebner basis theory.
Roemer, Tim, Schmitz, Kirsten
core +3 more sources
Ideales principales y conjuntos Apéry en un semigrupo numérico
En este artículo examinaremos algunas relaciones existentes entre los ideales principales y los conjuntos Apéry en un semigrupo numérico...
Mario E. Santiago Saldaña+3 more
doaj +1 more source
A CHARACTERIZATION OF BAER-IDEALS [PDF]
An ideal I of a ring R is called right Baer-ideal if there exists an idempotent e 2 R such that r(I) = eR. We know that R is quasi-Baer if every ideal of R is a right Baer-ideal, R is n-generalized right quasi-Baer if for each I E R the ideal In is right
Ali Taherifar
doaj +1 more source
Principal Elements of Lattices of Ideals [PDF]
The notion of principal element of a commutative multiplicative lattice was introduced by Dilworth. In this note the principal elements of the lattice of ideals of a commutative ring with unity R are characterized as those ideals of R which are finitely generated and locally principal ideals.
openaire +2 more sources
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Principal ideals and smooth curves
AbstractLet A be the coordinate ring of an affine piece of a smooth curve, V, defined over either R or an algebraically closed field k. We ask which maximal ideals of A are principal. We give a complete determination if V has genus 0 or 1, and give partial results if V has genus >/ 2. We conjecture that if k is algebraically closed of characteristic 0,
Charles A. Weibel, Anthony V. Geramita
openaire +2 more sources
Data‐driven performance metrics for neural network learning
Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri+2 more
wiley +1 more source
Computation of relative integral bases for algebraic number fields
At first we are given conditions for existence of relative integral bases for extension (K;k)=n. Then we will construct relative integral bases for extensions OK6(−36)/Ok2(−3), OK6(−36)/Ok3(−33), OK6(−36)/Z.
Mahmood Haghighi
doaj +1 more source
Principal Intuitionistic Fuzzy Ideals and Filters on a Lattice
In this paper, we generalize the notion of principal ideal (resp. filter) on a lattice to the setting of intuitionistic fuzzy sets and investigate their various characterizations and properties.
Boudaoud Sarra+2 more
doaj +1 more source
An algorithm for the principal ideal problem in indefinite quaternion algebras [PDF]
Deciding whether an ideal of a number field is principal and finding a generator is a fundamental problem with many applications in computational number theory.
Aurel Page
semanticscholar +1 more source