Ladányi László SJ (1914–1990)

Graph Minor Theory László

A monumental project in graph theory was recently completed. The project, started by Robertson and Seymour, and later joined by Thomas, led to entirely new concepts and a new way of looking at graph theory. The motivating problem was Kuratowski’s characterization of planar graphs, and a far-reaching generalization of this, conjectured by Wagner: If a class of graphs is minor-closed (i.e., it is...

Transition and Development László Csaba

Microsoft Word - ITWSA_gensips2008_huang2-SJ

An algorithm for the discovery of time varying modules using genome-wide expression data is presented here. When applied to large-scale time serious data, our method is designed to discover not only the transcription modules but also their timing information, which is rarely annotated by the existing approaches. Rather than assuming commonly defined time constant transcription modules, a module...

Observation of the D(sJ)(2317) and D(sJ)(2457) in B decays.

We report the first observation of the B-->Dmacr;D(sJ)(2317) and B-->Dmacr;D(sJ)(2457) decays based on 123.8x10(6) BBmacr; events collected with the Belle detector at KEKB. We observe the D(sJ)(2317) decay to D(s)pi(0) and the D(sJ)(2457) decay to the D(*)(s)pi(0) and D(s)gamma final states. We also set 90% C.L. upper limits for the decays D(sJ)(2317)-->D(*)(s)gamma, D(sJ)(2457)-->D(*)(s)gamma,...

0 A ug 2 00 4 Regge Trajectories Analysis to D ⋆ SJ ( 2317 ) ± , D SJ ( 2460 ) ± and D SJ ( 2632 ) + Mesons

The properties of the new observed charmed strange mesons D⋆ SJ(2317) , DSJ(2460) ± and DSJ(2632) + are simply listed. The status of investigations of these states is reviewed. An analysis to these states with Regge trajectories was made. We found that D⋆ SJ(2317) ± and DSJ(2460) ± could be arranged as (0, 1), but DSJ(2632) + seems not possible to be an orbital excited tensor particle. As a byp...