Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Rainer, Strack"'
Autor:
Ulrich Villis, Rainer Strack
Publikováno v:
European Management Journal. 20:147-158
Many companies have introduced new value-based methods such as the EVA™ or CVA concept for strategic and operational control. However, these concepts are still strongly focused on investment capital and can hardly explain and manage value creation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e256bcecc3d6c730aa531503b4b95c6b
https://doi.org/10.1016/s0263-2373(02)00025-7
https://doi.org/10.1016/s0263-2373(02)00025-7
Publikováno v:
Controlling. 14:623-632
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::652b7845b6611e4119b1179fcacd7666
https://doi.org/10.15358/0935-0381-2002-11-623
https://doi.org/10.15358/0935-0381-2002-11-623
Publikováno v:
Controlling. 12:409-416
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83bf9aa33195a5b0c45ca577a7a16bcf
https://doi.org/10.15358/0935-0381-2000-8-9-409
https://doi.org/10.15358/0935-0381-2000-8-9-409
Publikováno v:
Physical Review B. 53:9225-9231
Nagaoka's theorem on ferromagnetism in the Hubbard model with one electron less than half filling is generalized to the case where all possible nearest-neighbor Coulomb interactions (the density-density interaction $V$, bond-charge interaction $X$, e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e80609334f653218743e4c5219f2dfca
https://doi.org/10.1103/physrevb.53.9225
https://doi.org/10.1103/physrevb.53.9225
Autor:
Rainer Strack, Dieter Vollhardt
Publikováno v:
Journal of Low Temperature Physics. 99:385-396
Exact results, both old and new, on the stability of saturated ferromagneiism in the Hubbard model and its extensions are discussed. For the Hubbard model with all nearest-neighbor interactions a new set of rigorous criteria, valid at half filling, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70cd9a1e2ae6cb806d00b8e80bd14db2
https://doi.org/10.1007/bf00752314
https://doi.org/10.1007/bf00752314
Publikováno v:
Internationale Unternehmungen und das Management ausländischer Tochtergesellschaften ISBN: 9783834925985
All athletic movement begins at the centre. The hips provide the power that allows baseball players to drive a ball hundreds of feet, soccer players to kick a ball nearly as far and dancers to spring into the air in seeming defiance of gravity. Altho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e2c8b63bde55794d7c4b32b09b1d41d
https://doi.org/10.1007/978-3-8349-6104-4_9
https://doi.org/10.1007/978-3-8349-6104-4_9
Autor:
Rainer Strack, Dieter Vollhardt
Publikováno v:
Physical Review Letters. 70:2637-2640
We present the exact ground-state wave function and energy of a general Hubbard model with kinetic energy t and on-site, nearest-neighbor, and bond-charge interaction U,V,X, respectively, for a wide, physically relevant range of parameters with X=t o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f7df843eb33a6e35b3cf31b811f3cb5
https://doi.org/10.1103/physrevlett.70.2637
https://doi.org/10.1103/physrevlett.70.2637
Publikováno v:
Physical Review B. 47:8594-8604
The ground-state energy, hybridization energy, momentum distributions, local magnetic moments, and magnetic phase diagram of the symmetric periodic Anderson model are calculated using a correlated wave function in d=1,2, and 3 dimensions. The wave fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43f46d053e5321c74225fe8b87bbaf67
https://doi.org/10.1103/physrevb.47.8594
https://doi.org/10.1103/physrevb.47.8594
Publikováno v:
Controlling zwischen Shareholder Value und Stakeholder Value: Neue Anforderungen, Konzepte und Instrumente
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74bfca51676191dd65f2b4aa212dad89
https://doi.org/10.1524/9783486848380.177
https://doi.org/10.1524/9783486848380.177
Publikováno v:
Harvard business review. 86(2)
In developed nations, the workforce is aging rapidly. That trend has serious implications. Companies could face severe labor shortages in a few years as workers retire, taking critical knowledge with them. Businesses may also see productivity decline
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8f55aec26b607d393f41038da7b16571
https://pubmed.ncbi.nlm.nih.gov/18314640
https://pubmed.ncbi.nlm.nih.gov/18314640