Results 101 to 110 of about 336 (128)
Operators on compositions and noncommutative Schur functions
, 2015 In this thesis, we study a natural noncommutative lift of the ubiquitous Schur functions, called noncommutative Schur functions. These functions were introduced by Bessenrodt, Luoto and van Willigenburg and resemble Schur functions in many regards.
Tewari, Vasu
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Noncommutative symmetric functions IV: Quantum linear groups and Hecke algebras at q = 0
We present representation theoretical interpretations of quasi-symmetric functions and noncommutative symmetric functions in terms of quantum linear groups and Hecke algebras at q = 0. We obtain in this way a noncommutative realization of quasi-symmetric
Daniel Krob, Jean-Yves Thibon
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Noncommutative algebra and geometry
, 2005 Finite Galois Stable Subgroups of Gln. Derived Categories for Nodal Rings and Projective Configurations. Crowns in Profinite Groups and Applications. The Galois Structure of Ambiguous Ideals in Cyclic Extensions of Degree 8.
Van Oystaeyen, Freddy +2 more
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The noncommutative Shilov boundary [PDF]
, 2016 We introduce Arveson's generalization of the Shilov boundary to the noncommutative case and give a proof based on the work of Hamana of the existence of the Shilov boundary ideal.
Johansson, Jimmy
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Noncommutative factorizations and symmetric functions
, 2010 Trois thèmes ont été poursuivis dans la thèse : -On introduit les fonctions symétriques non commutatives dans le cadre des extensions de Ore. On généralise les résultats obtenus par Gelfand, Retakh et Wilson.
Delenclos, Jonathan
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Quantum quasi-symmetric functions and Hecke algebras
, 1996 . The algebra of quasi-symmetric functions is known to describe the characters of the Hecke algebra Hn (v) of type An\Gamma1 at v = 0. We present a quantization of this algebra, defined in terms of filtrations of induced representations of the 0Hecke ...
J-Y Thibon, B-c-v Ung
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Word symmetric functions and the Redfield-Pólya theorem
, 2013 Accepted to FPSAC 2013We give noncommutative versions of the Redfield-Pólya theorem in WSym, the algebra of word symmetric functions, and in other related combinatorial Hopf ...
Chouria, Ali +3 more
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A noncommutative approach to the Schur positivity of chromatic symmetric functions
26 pages, with an appendix of 6 pagesWe obtain the Schur positivity of spider graphs of the forms $S(a,2,1)$ and $S(a,4,1)$, which are considered to have the simpliest structures for which the Schur positivity was unknown.
Wang, David G. L., Thibon, Jean-Yves
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A symmetric functional calculus for noncommuting systems of sectorial operators
, 2003 Given a system $A = (A_1, . . . , A_n)$ of linear operators whose real linear combinations have spectra contained in a fixed sector in $\mathbbC$ and satisfy resolvent bounds there, functions $f(A)$ of the system $A$ of operators can be formed for monogenic functions f having decay at zero and infinity in a corresponding sector in $\mathbb^n+1$.
openaire +1 more source