
doi: 10.1007/bf01077861
Groups and semigroups of linear operators, Perturbation theory of linear operators, essential selfadjointness, hypercontractibility, perturbation, positivity, semigroup, Fourier transform, Perturbation theories for operators and differential equations in quantum theory, Feynman-Kac formula
Groups and semigroups of linear operators, Perturbation theory of linear operators, essential selfadjointness, hypercontractibility, perturbation, positivity, semigroup, Fourier transform, Perturbation theories for operators and differential equations in quantum theory, Feynman-Kac formula
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 2 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
