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We shall discuss a higher-rank Khovanskii-Teissier inequality, generalizing a theorem of Li. In the course of the proof, we develop new Hodge-Riemann bilinear relations in certain mixed settings, which in themselves slightly extend the…

Differential Geometry · Mathematics 2021-09-01 Yashan Zhang

We define Lie subalgebras of the group algebra of a finite pseudo-reflection group that are involved in the definition of the Cherednik KZ-systems, and determine their structure. We provide applications for computing the Zariski closure of…

Representation Theory · Mathematics 2010-12-21 Ivan Marin

We give a natural proof of the Ado theorem.

Representation Theory · Mathematics 2012-11-27 Yurii A. Neretin

We establish some results about large restricted Lie algebras similar to those known in the Group Theory. As an application we use this group-theoretic approach to produce some examples of restricted as well as ordinary Lie algebras which…

Rings and Algebras · Mathematics 2007-05-23 Yuri Bahturin , Alexander Olshanskii

We study the Lie algebra structure of the Onsager algebra from the ideal theoretic point of view. A structure theorem of ideals in the Onsager algebra is obtained with the connection to the finite-dimensional representations. We also…

Statistical Mechanics · Physics 2009-10-31 Etsuro Date , Shi-shyr Roan

This is a survey on extended affine Lie algebras and related types of Lie algebras, which generalize affine Lie algebras.

Rings and Algebras · Mathematics 2008-05-23 Erhard Neher

We establish a finite-dimensional version of the Arveson-Stinespring dilation theorem for unital completely positive maps on operator systems. This result can be seen as a general principle to deduce finite-dimensional dilation theorems…

Functional Analysis · Mathematics 2022-04-25 Michael Hartz , Martino Lupini

I connect an old result of mine on a Lie algebra generalization of the Amitsur-Levitski theorem with equations for sheets in a reductive Lie algebra and with recent results of Kostant-Wallach on the variety of singular elements in a…

Representation Theory · Mathematics 2013-09-30 Bertram Kostant

We give a characterization of decomposition theory in linear algebra.

Commutative Algebra · Mathematics 2012-12-13 Yi Zhang

In this paper, we attempt to develop the Schreier theory for two special types extensions of multiplicative Lie algebras.

Group Theory · Mathematics 2019-09-04 Mani Shankar Pandey , Sumit Kumar Upadhyay

For W a finite (2-)reflection group and B its (generalized) braid group, we determine the Zariski closure of the image of B inside the corresponding Iwahori-Hecke algebra. The Lie algebra of this closure is reductive and generated in the…

Representation Theory · Mathematics 2009-11-11 Ivan Marin

We study the boundedness from Hp(.) into Lq(.) of certain generalized Riesz potentials and the Hp(.)-Hq(.) boundedness of the Riesz potential. Both results are achieved via the finite atomic decomposition developed in [4].

Classical Analysis and ODEs · Mathematics 2016-08-02 Pablo Rocha

A proof of the Ending Laminations Theorem is given, using Teichmuller geodesics directly.

Geometric Topology · Mathematics 2007-07-18 Mary Rees

This is a survey on the finite basis problem for varieties of algebraic systems. Our exposition is in two directions: (i) We give numerous examples of varieties which are not finitely based. (ii) We give examples of important varieties with…

Rings and Algebras · Mathematics 2026-02-24 Vesselin Drensky

Over the topos of sets, the notion of Lawvere theory is infinite countably-sorted algebraic but not one-sorted algebraic. Shifting viewpoint over the object-classifier topos, a finite algebraic presentation of Lawvere theories is…

Category Theory · Mathematics 2024-08-20 Marcelo Fiore , Sanjiv Ranchod

In this paper I consider locally finite Lie algebras of characteristic zero satisfying the condition that for every finite number of elements $x_{1}, x_{2},..., x_{k}$ of such an algebra $L$ there is finite-dimensional subalgebra $A$ which…

Rings and Algebras · Mathematics 2007-05-23 L. A. Simonian

The general theory of the radicals of Lie algebras are established. Baer radicals of untwisted affine Lie algebras are found.

Quantum Algebra · Mathematics 2014-05-28 Lingwei Guo , Shouchuan Zhang , Junqin Li

We initiate a study on a range of new generalized derivations of finite-dimensional Lie algebras over an algebraically closed field of characteristic zero. This new generalization of derivations has an analogue in the theory of associative…

Rings and Algebras · Mathematics 2021-05-04 Hongliang Chang , Yin Chen , Runxuan Zhang

We prove an infinitary version of the Brauer-Schur theorem.

Combinatorics · Mathematics 2023-07-28 Shahram Mohsenipour

In this article, we prove the $p$-adic Kazhdan-Lusztig hypothesis for $\mathrm{GL}_n(F)$. While the approach via graded affine Hecke algebras due to recent work of Solleveld leads to more general results, this article serves to completes…

Representation Theory · Mathematics 2026-03-03 Kristaps John Balodis