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- HUN-REN Wigner Research Centre for PhysicsHU158 papers
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46 papers · 1 filter
Obtaining a Planar Graph by Vertex Deletion
Dániel Marx, Ildikó Schlotter
In the k-Apex problem the task is to find at most k vertices whose deletion makes the given graph planar. The graphs for which there exists a solution form a minor closed class of…
Spin diffusion and magnetic eigenoscillations confined to single molecular layers in the organic conductors kappa-(BEDT-TTF)_2Cu[N(CN)_2X (X=Cl, Br)
Agnes Antal, Titusz Feher, Andras Janossy +2
The layered organic compounds, kappa-(BEDT-TTF)_2Cu[N(CN)_2X (X=Cl, Br) are metals at ambient temperatures. At low temperatures, the Cl compound is a weakly ferromagnetic Mott insu…
Preferred numbers and the distribution of trade sizes and trading volumes in the Chinese stock market
Guo-Hua Mu, Wei Chen, János Kertész +1
The distribution of trade sizes and trading volumes are investigated based on the limit order book data of 22 liquid Chinese stocks listed on the Shenzhen Stock Exchange in the who…
Markov triplets on CCR-algebras
Anna Jencova, Denes Petz, Jozsef Pitrik
The paper contains a detailed computation about the algebra of canonical commutation relation, the representation of the Weyl unitaries, the quasi-free states and their von Neumann…
Biorthonormal Systems in Freud-type Weighted Spaces with Infinitely Many Zeros - An Interpolation Problem
Ágota P. Horváth
In a Freud-type weighted () space, introducing another weight () with infinitely many roots, we give a complete and minimal system with respect to , by deleting infinitel…
Trading GRH for algebra: algorithms for factoring polynomials and related structures
Gábor Ivanyos, Marek Karpinski, Lajos Rónyai +1
In this paper we develop techniques that eliminate the need of the Generalized Riemann Hypothesis (GRH) from various (almost all) known results about deterministic polynomial facto…