Results 161 to 170 of about 15,532 (201)

On the Meaning of De-Excitations in Time-Dependent Density Functional Theory Computations. [PDF]

J Comput Chem
Plasser F.
europepmc   +1 more source

On the Weierstraß form of infinite-dimensional differential algebraic equations. [PDF]

J Evol Equ
Erbay M, Jacob B, Morris K.
europepmc   +1 more source

Long-Time Dynamics for the Kelvin-Helmholtz Equations Close to Circular Vortex Sheets. [PDF]

Arch Ration Mech Anal
Murgante F, Roulley E, Scrobogna S.
europepmc   +1 more source

A Gentle Introduction to Lattice Field Theory. [PDF]

Entropy (Basel)
Seiler E.
europepmc   +1 more source

On the nilpotent commutator of a nilpotent matrix [PDF]

Linear and Multilinear Algebra, 2012
We study the structure of the nilpotent commutator $\nb$ of a nilpotent matrix $B$. We show that $\nb$ intersects all nilpotent orbits for conjugation if and only if $B$ is a square--zero matrix. We describe nonempty intersections of $\nb$ with nilpotent orbits in the case the $n \times n$ matrix $B$ has rank $n-2$.
Polona Oblak
exaly   +3 more sources

Nilpotent derivations

Journal of Algebra, 2005
In this technical paper, the authors develop precise results on the index of nilpotence of a derivation \(D\) of a semiprime ring \(R\) with characteristic, and also on a related index defined by the ideals of \(R\). Let \(R\) be a semiprime ring with characteristic zero or a prime, \(Q\) the symmetric Martindale quotient ring of \(R\), \(C\) the ...
Tsiu-Kwen Lee, Chen-Lian Chuang
exaly   +2 more sources

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Nilpotent polynomials and nilpotent coefficients

Journal of Algebra, 2022
Many mathematicians believe that Köthe conjecture is one of the hardest problem in mathematics. It was started in 1930 and it is still open until now. Some reformulations of the Köthe conjecture were found by many prominent authors. The Köthe conjecture is also equivalent to the condition, for any ring \(R\), the Jacobson radical of \(R[x]\) consists ...
Thomas L. Draper, Pace P. Nielsen, Janez Šter   +2 more
openaire   +2 more sources

Nilpotency of Derivations

Canadian Mathematical Bulletin, 1983
AbstractIt is shown that the nilpotency of a derivation on a 2-torsion free semiprime ring is always an odd number. Examples are provided to show the necessity of the assumptions.
Chung, L. O., Luh, Jiang
openaire   +2 more sources