Two inequalities for parameters of a cellular algebra

1999 ◽  
Vol 96 (5) ◽  
pp. 3496-3504 ◽  
Author(s):  
S. A. Evdokimov ◽  
I. N. Ponomarenko
Keyword(s):  
2011 ◽  
Vol 85 (2) ◽  
pp. 261-270 ◽  
Author(s):  
YANBO LI

AbstractLet R be an integral domain and A a cellular algebra over R with a cellular basis {CλS,T∣λ∈Λ and S,T∈M(λ)}. Suppose that A is equipped with a family of Jucys–Murphy elements which satisfy the separation condition in the sense of Mathas [‘Seminormal forms and Gram determinants for cellular algebras’, J. reine angew. Math.619 (2008), 141–173, with an appendix by M. Soriano]. Let K be the field of fractions of R and AK=A⨂ RK. We give a necessary and sufficient condition under which the centre of AK consists of the symmetric polynomials in Jucys–Murphy elements. We also give an application of our result to Ariki–Koike algebras.


1999 ◽  
Vol 315 (2) ◽  
pp. 281-293 ◽  
Author(s):  
Steffen König ◽  
Changchang Xi
Keyword(s):  

2000 ◽  
Vol 228 (1) ◽  
pp. 51-59 ◽  
Author(s):  
Steffen König ◽  
Changchang Xi

2012 ◽  
Vol 86 (3) ◽  
pp. 515-524 ◽  
Author(s):  
YANBO LI

AbstractLet A be a finite-dimensional Frobenius cellular algebra with cell datum (Λ,M,C,i). Take a nondegenerate bilinear form f on A. In this paper, we study the relationship among i, f and a certain Nakayama automorphism α. In particular, we prove that the matrix associated with α with respect to the cellular basis is uni-triangular under a certain condition.


2019 ◽  
Vol 108 (3) ◽  
pp. 349-362 ◽  
Author(s):  
YANBO LI ◽  
DEKE ZHAO

Let $A=\bigoplus _{i\in \mathbb{Z}}A_{i}$ be a finite-dimensional graded symmetric cellular algebra with a homogeneous symmetrizing trace of degree $d$. We prove that if $d\neq 0$ then $A_{-d}$ contains the Higman ideal $H(A)$ and $\dim H(A)\leq \dim A_{0}$, and provide a semisimplicity criterion for $A$ in terms of the centralizer of $A_{0}$.


1999 ◽  
Vol 27 (11) ◽  
pp. 5463-5470 ◽  
Author(s):  
Steffen König ◽  
Changchang Xi

2010 ◽  
Vol 82 (3) ◽  
pp. 511-522 ◽  
Author(s):  
YANBO LI

AbstractLet R be an integral domain and A a symmetric cellular algebra over R with a cellular basis {CλS,T∣λ∈Λ,S,T∈M(λ)}. We construct an ideal L(A) of the centre of A and prove that L(A) contains the so-called Higman ideal. When R is a field, we prove that the dimension of L(A) is not less than the number of nonisomorphic simple A-modules.


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