We construct homomorphic images of $$su(n,n)^{{\mathbb {C}}}$$ in Weyl Algebras $${{\mathcal {H}}}_{2nr}$$ . More precisely, and using the Bernstein filtration , is mapped into degree 2 elements with negative non-compact root spaces being second order creation operators. Using Fock representation these homomorphisms give all unitary highest weight representations thus reconstructing Kashiwara–V...

The territory of the island Atauro, in Timor Leste, has been past subject internal conflicts between three dialectal groups that compose population, revealing difficult life conditions on an with limited water resources. narratives about places given by inhabitants allow us to understand representations space and formulate some hypotheses its settlement. article explores mythology birth island,...

Surface oxygen vacancies, dynamically created and annihilated under the reaction conditions, may serve as a unique form of active site for heterogeneous catalysis. In this study, mechanisms selected reactions (i.e., CO oxidation, water-gas shift, CO2 hydrogenation, alcohol carbonation, selective catalytic reduction NO with NH3) proposed by in-situ spectroscopy characterizations were reviewed to...

PET (positron emission tomography) is a powerful imaging technique that can provide quantitative information on the distribution of positron emitter labeled radiopharmaceuticals (PET radiopharmaceuticals) in the body. Positrons (ß+) are positively charged beta particles. They are emitted when the atom is proton rich. A positron has only a transient existence. After losing all of its kinetic ene...

PET (positron emission tomography) is a powerful imaging technique that can provide quantitative information on the distribution of positron emitter labeled radiopharmaceuticals (PET radiopharmaceuticals) in the body. Positrons (ß+) are positively charged beta particles. They are emitted when the atom is proton rich. A positron has only a transient existence. After losing all of its kinetic ene...

The propagators for the Faddeev-Popov (FP) ghosts in Yang-Mills theory and perturbative gravity covariant gauge are infrared (IR) divergent de Sitter spacetime. An IR cutoff momentum space to regularize these divergences breaks invariance. These due spatially constant modes case proportional Killing vectors of gravity. It has been proposed that can be removed, with invariance preserved, by firs...

It is shown that all nontrivial elements in higher K-groups of toric varieties over a class of regular rings are annihilated by iterations of the natural Frobenius type endomorphisms. This is a higher analog of the triviality of vector bundles on affine toric varieties. 1. Statement of the main result The nilpotence conjecture in K-theory of toric varieties, treated in our previous works, asser...