Results 11 to 20 of about 12,502 (286)

Vertex representations of quantum affine algebras [PDF]

open access: yesProceedings of the National Academy of Sciences, 1988
We construct vertex representations of quantum affine algebras of ADE type, which were first introduced in greater generality by Drinfeld and Jimbo. The limiting special case of our construction is the untwisted vertex representation of affine Lie algebras of Frenkel-Kac and Segal.
Frenkel, Igor B., Jing, Naihuan
openaire   +2 more sources

Representations of continuous piecewise affine functions

open access: yesVestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2022
Continuous piecewise affine functions are widely used in computational mathematics. In one-dimensional case such functions are called broken lines. The article analyzes the analytical representations of broken lines in the forms accepted in the theory of polynomial splines as well as in the form of the difference of the maxima of two finite families of
Malozemov, V. N., Tamasyan, G. Sh.
openaire   +1 more source

Ruang Fase Tereduksi Grup Lie Aff (1)

open access: yesJambura Journal of Mathematics, 2021
ABSTRAK Dalam artikel ini dipelajari ruang fase tereduksi dari suatu grup Lie khususnya untuk grup Lie affine  berdimensi 2. Tujuannya adalah untuk mengidentifikasi ruang fase tereduksi dari  melalui orbit coadjoint buka di titik tertentu pada ruang ...
Edi Kurniadi
doaj   +1 more source

Staggered and affine Kac modules over A1(1)

open access: yesNuclear Physics B, 2020
This work concerns the representation theory of the affine Lie algebra A1(1) at fractional level and its links to the representation theory of the Virasoro algebra.
Jørgen Rasmussen
doaj   +1 more source

Uncertainty Modeling and Robust Output Feedback Control of Nonlinear Discrete Systems: A Mathematical Programming Approach [PDF]

open access: yesModeling, Identification and Control, 2001
We present a mathematical programming approach to robust control of nonlinear systems with uncertain, possibly time-varying, parameters. The uncertain system is given by different local affine parameter dependent models in different parts of the state ...
Olav Slupphaug   +2 more
doaj   +1 more source

McKay Centralizer Algebras [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
For a finite subgroup G of the special unitary group SU2, we study the centralizer algebra Zk(G) = EndG(V⊗k) of G acting on the k-fold tensor product of its defining representation V = C2.
Georgia Benkart, Tom Halverson
doaj   +1 more source

Symmetric deformed 2D/3D Hurwitz–Kontsevich model and affine Yangian of $${\mathfrak {gl}}(1)$$ gl ( 1 )

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Since the ( $$\beta $$ β -deformed) Hurwitz Kontsevich model corresponds to the special case of affine Yangian of $${\mathfrak {gl}}(1)$$ gl ( 1 ) . In this paper, we construct two general cases of the $$\beta $$ β -deformed Hurwitz Kontsevich model.
Wang Na, Wu Ke
doaj   +1 more source

A QUASI-AFFINE REPRESENTATION [PDF]

open access: yesInternational Journal of Algebra and Computation, 1995
We describe a quasi-affine representation for algebras having a binary central term.
openaire   +2 more sources

Affine Anosov Representations and Proper Actions

open access: yesInternational Mathematics Research Notices, 2022
Abstract We define the notion of affine Anosov representations of word hyperbolic groups into the affine group $\textsf {SO}^0(n+1,n)\ltimes {\mathbb {R}}^{2n+1}$. We then show that a representation $\rho $ of a word hyperbolic group is affine Anosov if and only if its linear part $\mathtt {L}_\rho $ is Anosov in $\textsf {SO}^0(n+1,n ...
Ghosh, Sourav, Treib, Nicolaus
openaire   +2 more sources

Representations of Affine Multifunctions by Affine Selections [PDF]

open access: yesSet-Valued Analysis, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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