Results 31 to 40 of about 323 (66)

Simetría y nuevas soluciones de la ecuación de vibraciones de una viga elástica

Ingeniería y Ciencia, 2009
En este artículo se estudia la “no Lie” simetría de la ecuación de viga, se construyen todos los operadores de simetría diferenciales lineales, hasta tercer orden.
Nykolay Sukhomlin, José R. Alvarez
doaj  

From the quantum Jacobi-Trudi and Giambelli formula to a nonlinear integral equation for thermodynamics of the higher spin Heisenberg model

, 2003
We propose a nonlinear integral equation (NLIE) with only one unknown function, which gives the free energy of the integrable one dimensional Heisenberg model with arbitrary spin.
Bazhanov V V, Domb C, Kirillov A N, Kirillov A N, Kirillov A N, Klümper A, Klümper A, Klümper A, Koma T, Kulish P P, Kuniba A, Sogo K, Suzuki J, Suzuki J, Suzuki M, Suzuki M, Takahashi M, Takahashi M, Takahashi M, Tsuboi Z, Zengo Tsuboi   +20 more
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Spin Chains with Non-Diagonal Boundaries and Trigonometric SOS Model with Reflecting End [PDF]

, 2011
In this paper we consider two a priori very different problems: construction of the eigenstates of the spin chains with non parallel boundary magnetic fields and computation of the partition function for the trigonometric solid-on-solid (SOS) model with ...
Filali, Ghali, Kitanine, Nikolai
core   +3 more sources

Bijective combinatorial proof of the commutation of transfer matrices in the dense O(1) loop model [PDF]

, 2014
The dense O(1) loop model is a statistical physics model with connections to the quantum XXZ spin chain, alternating sign matrices, the six-vertex model and critical bond percolation on the square lattice. When cylindrical boundary conditions are imposed,
Peled, Ron, Romik, Dan
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Domain wall partition functions and KP

, 2009
We observe that the partition function of the six vertex model on a finite square lattice with domain wall boundary conditions is (a restriction of) a KP tau function and express it as an expectation value of charged free fermions (up to an overall ...
Baxter R J, Hirota R, Izergin A G, Kitanine N Kozlowski K K Maillet J M Slavnov N A Terras V, Kitanine N Maillet J M Slavnov N A Terras V, Korepin V E, Lascoux A, M Wheeler, M Zuparic, Macdonald I G, Miwa T, O Foda   +11 more
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Nonlinear integral equations for thermodynamics of the sl(r+1) Uimin-Sutherland model

, 2002
We derive traditional thermodynamic Bethe ansatz (TBA) equations for the sl(r+1) Uimin-Sutherland model from the T-system of the quantum transfer matrix. These TBA equations are identical to the ones from the string hypothesis.
Bazhanov V V, Dorey P, Jüttner G, Kirillov A N, Klümper A, Klümper A, Koma T, Kuniba A, Kuniba A, Kuniba A, Suzuki J, Suzuki J, Suzuki J, Suzuki M, Takahashi M, Takahashi M, Takahashi M, Takahashi M, Tsuboi Z, Tsuboi Z, Tsuboi Z, Uimin G V, Zengo Tsuboi, Zinn-Justin P   +23 more
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Identities in the Superintegrable Chiral Potts Model

, 2010
We present proofs for a number of identities that are needed to study the superintegrable chiral Potts model in the $Q\ne0$ sector.Comment: LaTeX 2E document, using iopart.cls with iopams packages. 11 pages, uses eufb10 and eurm10 fonts. Typeset twice!
Albertini G, Andrews G E, Au-Yang H, Au-Yang H, Au-Yang H Perk J H H, Baxter R J, Davies B, Helen Au-Yang, Iorgov N, Iorgov N, Jacques H H Perk, Lisovyy O, von Gehlen G, von Gehlen G, von Gehlen G, von Gehlen G   +15 more
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Exactness of the Bogoliubov approximation in random external potentials

, 2010
We investigate the validity of the Bogoliubov c-number approximation in the case of interacting Bose-gas in a \textit{homogeneous random} media. To take into account the possible occurence of type III generalized Bose-Einstein condensation (i.e.
Bogoliubov N. N., Bogoliubov N. N., Fannes M., Lenoble O., Steele J. M., Thomas Jaeck, Valentin A. Zagrebnov, van den Berg M.   +7 more
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Separation of variables for the quantum relativistic Toda lattices

, 1994
We consider quantum analogs of the relativistic Toda lattices and give new $2\times 2$ $L$-operators for these models. Making use of the variable separation the spectral problem for the quantum integrals of motion is reduced to solving one-dimensional ...
Kuznetsov, V. B., Tsiganov, A. V.
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Matrix Whittaker processes. [PDF]

Probab Theory Relat Fields, 2023
Arista J, Bisi E, O'Connell N.
europepmc   +1 more source