A strongly Fregean algebra is an such that the class of its homomorphic images and variety generated by this congruence modular. To understand structure these algebras we study prime intervals projectivity relation in posets their completely meet irreducible congruences show cosets have natural a Boolean group. In particular, approach allows us to represent elements as subsets upward closed wit...

The Generalized Principal Ideal Theorem is one of the cornerstones of dimension theory for Noetherian rings. For an R-module M, we identify certain submodules of M that play a role analogous to that of prime ideals in the ring R. Using this definition, we extend the Generalized Principal Ideal Theorem to modules.

the submodules with the property of the title ( a submodule $n$ of an $r$-module $m$ is called strongly dense in $m$, denoted by $nleq_{sd}m$, if for any index set $i$, $prod _{i}nleq_{d}prod _{i}m$) are introduced and fully investigated. it is shown that for each submodule $n$ of $m$ there exists the smallest subset $d'subseteq m$ such that $n+d'$ is a strongly dense submodule of $m$...

Let $V_{L}$ be the vertex algebra associated to a non-degenerate even lattice $L$, $\theta$ automorphism of induced from $-1$-isometry and $V_{L}^{+}$ fixed point subalgebra under action $\theta$. In this series papers, we classify irreducible weak $V_{L}^{+}$-modules show that any $V_{L}^{+}$-module is isomorphic submodule some $V_{L}$-module or $\theta$-twisted $V_{L}$-module. paper (Part 1),...

For positive integers n and l, we study the cyclic U(gl n )-module generated by the l-th power of the α-determinant det(X). This cyclic module is isomorphic to the n-th tensor space (Sym(C)) of the symmetric l-th tensor space of C for all but finite exceptional values of α. If α is exceptional, then the cyclic module is equivalent to a proper submodule of (Sym(C)), i.e. the multiplicities of se...

All rings are commutative with 1 6= 0, and all modules are unital. The purpose of this paper is to investigate the concept of 2-absorbing primary submodules generalizing 2-absorbing primary ideals of rings. Let M be an R-module. A proper submodule N of an R-module M is called a 2-absorbing primary submodule of M if whenever a, b ∈ R and m ∈M and abm ∈ N , then am ∈M -rad(N) or bm ∈M -rad(N) or ...

In this paper, for any prime $p$, we propose the notion of a $p$-transitive association scheme. This aims to generalize fact that regular module group algebra finite has unique trivial submodule case modules modular adjacency algebras. We completely determine quasi-thin schemes and with thin residue by their structure theory properties.

Let V be a finite-dimensional F -vector space, and let T : V → V be a linear transformation. In this note we prove that V is a direct sum of cyclic T -invariant subspaces. More specifically, we prove that V is a direct sum of cyclic T -invariant subspaces whose annihilators are generated by powers of irreducible polynomials, and that the collection of these polynomials is uniquely determined. R...

This paper provides analogues of the results of [16] for odd primes p . It is proved that for certain irreducible representations L(λ) of the full matrix semigroup Mn(Fp), the first occurrence of L(λ) as a composition factor in the polynomial algebra P = Fp[x1, . . . , xn] is linked by a Steenrod operation to the first occurrence of L(λ) as a submodule in P. This operation is given explicitly a...

Let R be ring and M a right R-module. This article introduces the concept of τ −⊕-supplemented modules as follows: Given a hereditary torsion theory in Mod-R with associated torsion functor τ we say that a module M is τ −⊕-supplemented when for every submodule N of M there exists a direct summand K of M such that M = N +K and N ∩K is τ−torsion, and M is called completely τ −⊕-supplemented if ev...