4 papers
BC-type open spin chain
P. Antonenko, S. Derkachov, P. Valinevich
We diagonalize the -element of monodromy matrix for noncompact open spin chain with boundary interaction. The monodromy matrix is defined in terms of $SL(2,\m…
A-Type Open Spin Chain
Pavel V. Antonenko, Sergey É. Derkachov, Pavel A. Valinevich
For the noncompact open spin chain, the eigenfunctions of the special matrix element of monodromy matrix are constructed. The key ingredients of the whole…
Reflection operator and hypergeometry II: spin chain
P. Antonenko, N. Belousov, S. Derkachov +1
We consider noncompact open spin chain and construct eigenfunctions of -element of monodromy matrix for the simplest case of the chain with one site. The ref…
The Gelfand-Tsetlin basis for infinite-dimensional representations of
P. V. Antonenko
We consider the problem of determination of the Gelfand-Tsetlin basis for unitary principal series representations of the Lie algebra . The Gelfand-Tsetlin basis…