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A Hardy's Uncertainty Principle Lemma in Weak Commutation Relations of Heisenberg-Lie Algebra  [PDF]
Toshimitsu Takaesu
Mathematics , 2010, DOI: 10.1007/s11005-010-0455-8
Abstract: In this article we consider linear operators satisfying a generalized commutation relation of a type of the Heisenberg-Lie algebra. It is proven that a generalized inequality of the Hardy's uncertainty principle lemma follows. Its applications to time operators and abstract Dirac operators are also investigated.
On the Arithmetic Fundamental Lemma through Lie algebras  [PDF]
Andreas Mihatsch
Mathematics , 2015,
Abstract: We prove that the Arithmetic Fundamental Lemma conjecture of Wei Zhang is equivalent to a similar conjecture, but for Lie algebras, in the case of non-degenerate intersection. We use this result to give a simplified proof of the AFL for $n=3$. The idea for the reduction to the Lie algebra is due to Wei Zhang.
On the perturbation lemma, and deformations  [PDF]
M. Crainic
Mathematics , 2004,
Abstract: We have one more look at the (homological) perturbation lemma and we point out some non-standard consequences, including the relevance to deformations.
On the Van Est homomorphism for Lie groupoids  [PDF]
David Li-Bland,Eckhard Meinrenken
Mathematics , 2014,
Abstract: The Van Est homomorphism for a Lie groupoid $G \rightrightarrows M$, as introduced by Weinstein-Xu, is a cochain map from the complex $C^\infty(BG)$ of groupoid cochains to the Chevalley-Eilenberg complex $C(A)$ of the Lie algebroid $A$ of $G$. It was generalized by Weinstein, Mehta, and Abad-Crainic to a morphism from the Bott-Shulman-Stasheff complex $\Omega(BG)$ to a (suitably defined) Weil algebra $W(A)$. In this paper, we will give an approach to the Van Est map in terms of the Perturbation Lemma of homological algebra. This approach is used to establish the basic properties of the Van Est map. In particular, we show that on the normalized subcomplex, the Van Est map restricts to an algebra morphism.
Ideal Perturbation Lemma  [PDF]
Martin Markl
Mathematics , 2000,
Abstract: We explain the essence of perturbation problems. The key to understanding is the structure of chain homotopy equivalence -- the standard one must be replaced by a finer notion which we call a strong chain homotopy equivalence. We prove an Ideal Perturbation Lemma and show how both new and classical results follow from this ideal statement.
A relative version of the ordinary perturbation lemma  [PDF]
Marco Manetti
Mathematics , 2010,
Abstract: The perturbation lemma and the homotopy transfer for L-infinity algebras is proved in a elementary way by using a relative version of the ordinary perturbation lemma for chain complexes and the coalgebra perturbation lemma.
Lie algebra of an n-Lie algebra  [PDF]
Basile Guy Richard Bossoto,Eugène Okassa,Mathias Omporo
Mathematics , 2013,
Abstract: We construct the Lie algebra of an n-Lie algebra and we also define the notion of cohomology of an n-Lie algebra.
Lie algebra cohomology for rational Cherednik algebras  [PDF]
Jing-Song Huang,Kayue Daniel Wong
Mathematics , 2015,
Abstract: We define Lie algebra cohomology associated with the half-Dirac operators for representations of rational Cherednik algebras and show that it has property described in the Casselman-Osborne lemma by establishing a version of the Vogan's conjecture for the half-Dirac operators. Moreover, we study the relationship between Lie algebra cohomology and Dirac cohomology in analogy of the representations for semisimple Lie algebras.
Prolongations of Lie Algebra Representations  [PDF]
Hulya Kadioglu,Erdogan Esin,Yusuf Yayli
Mathematics , 2013,
Abstract: In this paper, we present a study on the prolongations of representations of Lie algebras. We show that a tangent bundle of a given Lie algebra attains a Lie algebra structure. Then, we prove that this tangent bundle is algebraically isomorphic to the Lie algebra of a tangent bundle of a Lie group. Using these, we de?ne prolongations of representations of Lie algebras. We show that if a Lie algebra representation corresponds to a Lie group representation, then prolongation of Lie algebra representation corresponds to the prolonged Lie group representation.
On Kirillov's lemma for nilpotent Lie algebras  [PDF]
Ingrid Beltita,Daniel Beltita
Mathematics , 2013,
Abstract: We establish a sharpening of Kirillov's lemma on nilpotent Lie algebras with 1-dimensional center and use it to study the structure of 3-step nilpotent Lie algebras.
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