Results 71 to 80 of about 17,639 (169)
$t$-Frobenius Negacyclic Codes
, 2017 Let $\mathbb{F}_p$ denote the finite field of order $p$, where $p$ is an odd prime. We study certain quantum negacyclic codes over $\mathbb{F}_p$ which we call $t$-Frobenius negacyclic codes. We obtain a criterion for constructing such codes from certain
Bag, Priyabrata, Dey, Santanu
core
Entrywise transforms preserving matrix positivity and nonpositivity
Journal of the London Mathematical Society, Volume 113, Issue 5, May 2026.Abstract We characterize real and complex functions which, when applied entrywise to square matrices, yield a positive definite matrix if and only if the original matrix is positive definite. We refer to these transformations as sign preservers. Compared to the classical work on entrywise preservers by Schoenberg and others, we completely resolve this ...
Dominique Guillot +3 more
wiley +1 more source
Bounds for Coding Theory over Rings. [PDF]
Entropy (Basel), 2022 Gassner N +3 more
europepmc +1 more source
FP-Injective and Weakly Quasi-Frobenius Rings
Journal of Mathematical Sciences, 2002 AMSLatex, 15 ...
openaire +3 more sources
Skew Constacyclic Codes over a Non-Chain Ring. [PDF]
Entropy (Basel), 2023 Köroğlu ME, Sarı M.
europepmc +1 more source
On the construction of quasi-Frobenius rings
Journal of Algebra, 1973 AbstractA quasi-Frobenius ring (QF ring) is a left Artinian ring R with identity for which the left R-module RR is injective. Since Nakayama [8] introduced the notion of a QF ring, quasi-Frobenius rings have been extensively studied. It is well known that for any QF ring R, both Rn, the ring of n × n matrices over R, and RG, group ring over R for any ...
openaire +1 more source
A Note on Quasi-Frobenius Rings
, 2005 The Faith-Menal conjecture says that every strongly right $Johns$ ring is $QF$. The conjecture is also equivalent to say every right noetherian left $FP$-injective ring is $QF$. In this short article, we show that the conjecture is true under the condition(a proper generalization of left $CS$ condition)that every nonzero complement left ideal is not ...
Shen, Liang, Chen, Jianlong
openaire +2 more sources
Lattices in Tate modules. [PDF]
Proc Natl Acad Sci U S A, 2021 Poonen B, Rybakov S.
europepmc +1 more source
Orienteering with One Endomorphism. [PDF]
Mathematica (N Y), 2023 Arpin S +5 more
europepmc +1 more source
Algebraic Method for Solving Multiple Degenerate Eigenvalues in [r]Triangulenes. [PDF]
ACS Omega, 2023 Dias JR.
europepmc +1 more source