منابع مشابه
On Perturbations of Ideal Complements
Let F[x] be the space of polynomials in d variables, let GN be the Grassmannian of N -dimensional subspaces of F[x] and let JN stand for the family of all ideals in F[x] of codimension N . For a given G ∈ GN we let JG := {J ∈ JN : J ∩G = {0}} Is it true, that (with appropriate topology on JN ) the set JG is dense in JN? In general the answer is ”No”. What is even more surprising, that there are...
متن کاملComplements ?
This paper revises the interdependence between flexible technology and product innovation in the context of a monopolistic firm. Previous literature argued that flexible machinery reduces the cost of incremental innovation. To take interactions beyond the fixed cost into account, we introduce a 2-period optimization model where technology, innovation and price are chosen first, then stochastic ...
متن کاملDifferential Equations on Hyperplane Complements
The goal of the next two talks is to (1) discuss a class of integrable connections associated to root systems (2) describe their monodromy in terms of quantum groups These connections come in two forms: • Rational form leading to representations of braid groups (this week) • Trigonometric form leading to representations of affine braid groups (next week) The relevance of these connections is th...
متن کاملOn quasi-catenary modules
We call a module M , quasi-catenary if for each pair of quasi-prime submodules K and L of M with K L all saturated chains of quasi-prime submodules of M from K to L have a common finite length. We show that any homomorphic image of a quasi-catenary module is quasi-catenary. We prove that if M is a module with following properties: (i) Every quasi-prime submodule of M has finite quasi-height;...
متن کاملOn quasi-baer modules
Let $R$ be a ring, $sigma$ be an endomorphism of $R$ and $M_R$ be a $sigma$-rigid module. A module $M_R$ is called quasi-Baer if the right annihilator of a principal submodule of $R$ is generated by an idempotent. It is shown that an $R$-module $M_R$ is a quasi-Baer module if and only if $M[[x]]$ is a quasi-Baer module over the skew power series ring $R[[x,sigma]]$.
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ژورنال
عنوان ژورنال: Pacific Journal of Mathematics
سال: 1973
ISSN: 0030-8730,0030-8730
DOI: 10.2140/pjm.1973.48.113