6 research outputs found
Mogelijkheden voor de toepassing van gamma straling bij de bestrijding van insekten en mijten na de oogst van snijbloemen
Conformal Higher Spin Symmetries of 4d Massless Supermultiplets and Invariant Equations in Generalized (Super)Space
Realization of the conformal higher spin symmetry on the 4d massless field
supermultiplets is given. The self-conjugated supermultiplets, including the
linearized SYM theory, are considered in some detail. Duality
between non-unitary field-theoretical representations and the unitary
doubleton--type representations of the 4d conformal algebra is
formulated in terms of a Bogolyubov transform. The set of 4d massless fields of
all spins is shown to form a representation of .
The obtained results are extended to the generalized superspace invariant
under supersymmetries. World line particle interpretation of the
free higher spin theories in the invariant (super)space is
given. Compatible with unitarity free equations of motion in the
invariant (super)space are formulated. A conjecture on the chain of
dualities in the higher spin
gauge theories is proposed.Comment: Latex, 63 pages; no figures.V2 Typos corrected, References updated.
V3.Typos correced, references and an explanation on the relationship with
previous work in section 4 are added. The version to appear in Phys.Rev.
Effecten van luchtverontreiniging met ammoniak en ammonium op de nutrientenkringlopen van bossen en heiden op droge zandgronden
Aandacht voor de stikstofkringloop van bossen en heiden; emissie en atmosferische depositie van ammoniak en ammonium in Nederland; de gevolgen van een verhoogde ammoniak- en ammoniumdepositie voor de nutrientenkringlopen in bodem en plant; parameters, waarmee ecologische effecten van luchtverontreiniging met ammoniak en ammonium kunnen worden gemete