Applying projective functors to arbitrary holonomic simple modules

M Mackaay, V Mazorchuk… - Journal of the London …, 2024 - Wiley Online Library
We prove that applying a projective functor to a holonomic simple module over a semisimple
finite‐dimensional complex Lie algebra produces a module that has an essential …

[HTML][HTML] Principal Galois orders and Gelfand-Zeitlin modules

JT Hartwig - Advances in Mathematics, 2020 - Elsevier
We show that the ring of invariants in a skew monoid ring contains a so called standard
Galois order. Any Galois ring contained in the standard Galois order is automatically itself a …

Simple modules over the Takiff Lie algebra for sl2

X Zhu - Journal of Mathematical Physics, 2024 - pubs.aip.org
In this paper, we construct, investigate and, in some cases, classify several new classes of
(simple) modules over the Takiff sl 2⁠. More precisely, we first explicitly construct and …

On the classification of irreducible Gelfand-Tsetlin modules of sl (3)

V Futorny, D Grantcharov… - Recent advances in …, 2014 - books.google.com
On the classification of irreducible Gelfand-Tsetlin modules of sl (3) Page 76 Contemporary
Mathematics Volume 623 , 2014 http://dx. doi. org/10.1090/conm/623/12443 On the classification …

[HTML][HTML] A geometric approach to 1-singular Gelfand–Tsetlin gln-modules

E Vishnyakova - Differential Geometry and its Applications, 2018 - Elsevier
This paper is devoted to an elementary new construction of 1-singular Gelfand–Tsetlin
modules using complex geometry. We introduce a universal ring D v together with the vector …

Gelfand-Tsetlin theory for rational Galois algebras

V Futorny, D Grantcharov, LE Ramirez… - Israel Journal of …, 2020 - Springer
In the present paper we study Gelfand-Tsetlin modules defined in terms of BGG differential
operators. The structure of these modules is described with the aid of the Postnikov-Stanley …

Lie algebra modules which are locally finite and with finite multiplicities over the semisimple part

V Mazorchuk, R MRÐEN - Nagoya mathematical journal, 2022 - cambridge.org
For a finite-dimensional Lie algebra over with a fixed Levi decomposition, where is
semisimple, we investigate-modules which decompose, as-modules, into a direct sum of …

[HTML][HTML] Bounds of Gelfand-Tsetlin multiplicities and tableaux realizations of Verma modules

V Futorny, D Grantcharov, LE Ramirez, P Zadunaisky - Journal of Algebra, 2020 - Elsevier
We introduce the notion of essential support of a simple Gelfand-Tsetlin gl n-module as an
attempt to understand the character formula of such module. This support detects the …

[HTML][HTML] Algebras of invariant differential operators

V Futorny, J Schwarz - Journal of Algebra, 2020 - Elsevier
We prove that an invariant subalgebra A n W of the Weyl algebra A n is a Galois order over
an adequate commutative subalgebra Γ when W is a two-parameters irreducible unitary …

Applying projective functors to arbitrary simple modules

M Mackaay, V Mazorchuk, V Miemietz - arXiv preprint arXiv:2311.04191, 2023 - arxiv.org
We prove that applying a projective functor to a simple module over a semi-simple finite
dimensional complex Lie algebra produces a module that has an essential semi-simple …