Results 31 to 40 of about 3,531,259 (296)

Solvable quantum Grassmann matrices [PDF]

open access: yesJournal of Statistical Mechanics: Theory and Experiment, 2017
25 pages, 4 ...
Anninos, Dionysios   +1 more
openaire   +5 more sources

Into the Square: On the Complexity of Some Quadratic-time Solvable Problems

open access: yesItalian Conference on Theoretical Computer Science, 2016
We analyze several quadratic-time solvable problems, and we show that these problems are not solvable in truly subquadratic time (that is, in time O(n2-?) for some ?>0), unless the well known Strong Exponential Time Hypothesis (in short, SETH) is false ...
Michele Borassi, P. Crescenzi, M. Habib
semanticscholar   +1 more source

On a class of solvable difference equations generalizing an iteration process for calculating reciprocals

open access: yesAdvances in Difference Equations, 2021
The well-known first-order nonlinear difference equation y n + 1 = 2 y n − x y n 2 , n ∈ N 0 , $$ y_{n+1}=2y_{n}-xy_{n}^{2}, \quad n\in {\mathbb {N}}_{0}, $$ naturally appeared in the problem of computing the reciprocal value of a given nonzero real ...
Stevo Stević
doaj   +1 more source

A note on finite group structure influenced by second and third maximal subgroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
The structure of a finite group having specified number of second and third maximal subgroups has been investigated in the paper.
N. P. Mukherjee, R. Khazal
doaj   +1 more source

Levi Decomposition of Frobenius Lie Algebra of Dimension 6

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2022
In this paper, we study notion of the Lie algebra  of dimension 6. The finite dimensional Lie algebra can be expressed in terms of decomposition between Levi subalgebra and the maximal solvable ideal.
Henti Henti, Edi Kurniadi, Ema Carnia
doaj   +1 more source

Exactly Solvable Schrödinger Operators [PDF]

open access: yesAnnales Henri Poincaré, 2011
We systematically describe and classify 1-dimensional Schr dinger equations that can be solved in terms of hypergeometric type functions. Beside the well-known families, we explicitly describe 2 new classes of exactly solvable Schr dinger equations that can be reduced to the Hermite equation.
Derezinski, Jan, Wrochna, Michal
openaire   +3 more sources

Maxwell's refrigerator: an exactly solvable model. [PDF]

open access: yesPhysical Review Letters, 2013
We describe a simple and solvable model of a device that-like the "neat-fingered being" in Maxwell's famous thought experiment-transfers energy from a cold system to a hot system by rectifying thermal fluctuations.
Dibyendu Mandal, H. Quan, C. Jarzynski
semanticscholar   +1 more source

On the Solvability of Inductive Problems: A Study in Epistemic Topology [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2016
We investigate the issues of inductive problem-solving and learning by doxastic agents. We provide topological characterizations of solvability and learnability, and we use them to prove that AGM-style belief revision is "universal", i.e., that every ...
Alexandru Baltag   +2 more
doaj   +1 more source

Solvable model for chimera states of coupled oscillators. [PDF]

open access: yesPhysical Review Letters, 2008
Networks of identical, symmetrically coupled oscillators can spontaneously split into synchronized and desynchronized subpopulations. Such chimera states were discovered in 2002, but are not well understood theoretically.
D. Abrams   +3 more
semanticscholar   +1 more source

Some results on π-solvable and supersolvable groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
For a finite group G, ϕp(G), Sp(G), L(G) and S𝒫(G) are generalizations of the Frattini subgroup of G. We obtain some results on π-solvable, p-solvable and supersolvable groups with the help of the structures of these subgroups.
T. K. Dutta, A. Bhattacharyya
doaj   +1 more source

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