?
Magic in the spectra of the XXZ quantum chain with boundaries at Δ=0 and Δ=-1/2
Nuclear Physics B. 2005. Vol. 729. No. 3. P. 387-418.
We show that from the spectra of the Uq(sl(2)) symmetric XXZ spin-1/2 finite quantum chain at = −1/2 (q = ei/3) one can obtain the spectra of certain XXZ quantum chains with diagonal and non-diagonal boundary conditions. Similar observations are made for = 0 (q = ei/2). In the finite-size scaling limit the relations among the various spectra are the result of identities satisfied by known character functions. For the finite chains the origin of the remarkable spectral identities can be found in the representation theory of one and two boundaries Temperley-Lieb algebras at exceptional points. Inspired by these observations we have discovered other spectral identities between chains with different boundary conditions.
Research target:
Philosophy, Ethics, and Religious Studies
Language:
English
Keywords: математика
Olomouc : Palacky University, 2008
The present volume contains regular papers from CLA 2008, the Sixth International Conference on Concept Lattices and Their Applications. CLA 2008 was held in Olomouc, Czech Republic, from October 21 to October 23, 2008, and was jointly organized by the Palack´y University, Olomouc, and the State University of New York at Binghamton. The areas of ...
Added: December 9, 2012
Alcaraz F. C., Pyatov P. N., Rittenberg V., Journal of Statistical Mechanics: Theory and Experiment 2008 Vol. P01006 P. 1-38
We consider the raise and peel model of a one-dimensional fluctuating interface in
the presence of an attractive wall. The model can also describe a pair annihilation
process in a disordered unquenched media with a source at one end of the system. For
the stationary states, several density profiles are studied usingMonte Carlo simulations. We point out a ...
Added: October 16, 2012
Berlin, Heidelberg : Springer, 2011
This volume contains papers presented at the 13th International Conference on Rough Sets, Fuzzy Sets and Granular Computing (RSFDGrC) held during June 25–27, 2011, at the National Research University Higher School of Economics (NRU HSE) in Moscow, Russia. RSFDGrC is a series of scientific events spanning the last 15 years. It investigates the meeting points ...
Added: August 31, 2012
M. : Higher School of Economics Publishing House, 2011
Concept discovery is a Knowledge Discovery in Databases (KDD) research field that uses human-centered techniques such as Formal Concept Analysis (FCA), Biclustering, Triclustering, Conceptual Graphs etc. for gaining insight into the underlying conceptual structure of the data. Traditional machine learning techniques are mainly focusing on structured data whereas most data available resides in unstructured, often ...
Added: December 3, 2012
Timorin V., Tabachnikov S., Квант 2009 № 5 С. 2-6
Added: October 12, 2012
Пермь : Пермский государственный национальный исследовательский университет, 2012
Сборник содержит 162 тезисов докладов участников всероссийской научно-практической конференции «Актуальные проблемы механики, математики, информатики – 2012» с международным участием, посвященной 100- летию со дня рождения профессоров С.Н. Черникова, И.Ф. Верещагина, Л.И. Волковысского. Представлены работы авторов России, ближнего и дальнего зарубежья.
Тезисы конференции охватывают такие направления, как история и фундаментальные проблемы математики и механики, общая механика, механика ...
Added: December 2, 2012
М. : Национальный открытый университет «ИНТУИТ», 2012
Доклады Всероссийской научно-практической конференции «Анализ Изображений, Сетей и Текстов» (АИСТ, Екатеринбург, 2012). Рассматриваются проблемы в области компьютерного зрения, анализа изображений и видео, анализа форумов, блогов и социальных сетей, анализ сетевых (графовых) и потоковых данных, компьютерной обработки текстов, гео-информационных систем, математических моделией и методов анализа данных, машинного обучения и разработки данных (Data Mining), рекомендательных систем и ...
Added: December 3, 2012
Timorin V., Tabachnikov S., Квант 2009 № 6 С. 6-9
Added: October 12, 2012
Berlin, Heidelberg : Springer, 2012
This book constitutes the refereed proceedings of the 12th Industrial Conference on Data Mining, ICDM 2012, held in Berlin, Germany in July 2012. The 22 revised full papers presented were carefully reviewed and selected from 97 submissions. The papers are organized in topical sections on data mining in medicine and biology; data mining for energy ...
Added: December 3, 2012
Paramonov A. A., Эпистемология и философия науки 2016 Т. 49 № 3 С. 36-42
Author treats an issue on getting a new knowledge from thought experiments. A history of the notion of thought experiment is presented in a few words. Author considers a concept of instinctive knowledge, which Ernst Mach used in his investigations of the thought experiments. He puts a question on about the cultural conditionality of “instinctive ...
Added: September 3, 2016
Rudakov A. N., Шафаревич И., Успехи математических наук 1978 Т. 33 № 1(199) С. 227-228
Added: October 16, 2012
Nekrasov N., Marshakov A., Journal of High Energy Physics 2007 No. 0701 P. 104
Added: October 18, 2012
Braverman A., Finkelberg M. V., Duke Mathematical Journal 2010 Vol. 152 No. 1 P. 175-206
This paper is the first in a series that describe a conjectural analog of the geometric Satake isomorphism for an affine Kac-Moody group (in this paper for simplicity we consider only untwisted and simply connected case). The usual geometric Satake isomorphism for a reductive group G identifies the tensor category Rep(G_) of finitedimensional representations of ...
Added: October 12, 2012
Finkelberg M. V., Gaitsgory D., Kuznetsov A., Publications of the Research Institute for Mathematical Sciences 2003 Vol. 39 No. 4 P. 721-766
Added: October 12, 2012
Rudakov A. N., Шафаревич И., Успехи математических наук 1978 Т. 33 № 6(204) С. 231-232
Added: October 16, 2012
Сумы : СумДу, 2014
Сумской государственный университет: Апрель 16, 2012 – Апрель 21, 2012
Факультет ЭлИТ. Конференция "Информатика, Математика, Автоматика" проводится на базе Сумского государственного университета. Конференция зарегистрирована у УкрЦНТЭИ как межвузовская. ...
Added: November 1, 2014
Goldengorin B. I., Ghosh D., Journal of Global Optimization 2005 Vol. 32 No. 1 P. 65-82
Added: July 31, 2012
Shehtman V. B., College Publications 2005 Vol. 2 P. 663-692
Added: October 18, 2012
Goldengorin B. I., European Journal of Operational Research 2009 Vol. 198 No. 1 P. 102-112
Added: July 31, 2012
Tyurin N. A., Theoretical and Mathematical Physics 2011 Vol. 167 No. 2 P. 567-576
Added: October 18, 2012
М. : Либроком, 2010
Альманах принадлежит к ставшей уже популярной серии сборников, освещающих различные аспекты использования математических методов в исторических, обществоведческих и экономических исследованиях. Этот выпуск посвящен исследованию макроисторической динамики общества и государства на протяжении огромного периода истории, охватывающего время зарождения и существования Мир-Системы. Альманах представляет собой комплексное исследование ряда важнейших макроисторических процессов, с использованием разнообразных аналитических и формально-математических ...
Added: October 15, 2014
Zotov A., Levin A., Olshanetsky M., Symmetry, Integrability and Geometry: Methods and Applications (SIGMA) 2009 Vol. 5 No. 065 P. 1-22
Modifications of bundles over complex curves is an operation that allows one to
construct a new bundle from a given one. Modifications can change a topological type of
bundle. We describe the topological type in terms of the characteristic classes of the bundle.Being applied to the Higgs bundles modifications establish an equivalence between different classical integrable systems. ...
Added: October 15, 2012
Marshakov A., Theoretical and Mathematical Physics 2011 Vol. 169 No. 3 P. 1704-1723
Added: October 18, 2012
Пенза : ПГУ, 2015
В сборник трудов включены доклады юбилейного ХХ-го Международного симпозиума «Надежность и качество», проходившего с 25 по 31 мая 2015 г. в городе Пензе.
Рассмотрены актуальные проблемы теории и практики повышения надежности и качества; эффективности внедрения инновационных и информационных технологий в фундаментальных научных и прикладных исследованиях, образовательных и коммуникативных системах и средах, экономике и юриспруденции; методов и ...
Added: May 31, 2015