Results 81 to 90 of about 17,345 (180)

How sensitive is the business ownership rate to unemployment fluctuations? Evidence of asymmetries in a panel of 23 OECD countries

Revista de Economía Mundial, 2015
In this article, we try to test whether the relationship running from unemployment to entrepreneurship/self-employment – the so-called ‘recession-push’ hypothesis – is affected asymmetrically by dynamic labour market conditions. To this end, we employ a
Mónica Carmona Arango, Emilio Congregado Ramírez de Aguilera, Antonio A. Golpe Moya, Jesús Iglesias Garrido   +3 more
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Quantum groups and nonabelian braiding in quantum Hall systems

, 2001
Wave functions describing quasiholes and electrons in nonabelian quantum Hall states are well known to correspond to conformal blocks of certain coset conformal field theories.
Alvarez-Gaumé, Alvarez-Gaumé, Ardonne, Ardonne, Bais, Bais, Boerner, Bouwknegt, Cabra, Cappelli, Chari, Di Francesco, Drinfel'd, F.A. Bais, Freyd, Fuchs, Fuchs, Fuchs, Gepner, Gepner, Gepner, Gomez, Gomez, Gomez, Greiter, Greiter, Griffin, Gurarie, Haldane, Haldane, Ho, J.K. Slingerland, Jacob, Kachurik, Keller, Kirillov, Kirillov, Mack, Majid, Moore, Moore, Moore, Morf, Nayak, Nemeschansky, Pasquier, Read, Schomerus, Tsuchiya, Tsuchiya, Tsuchiya, Vaksman, Varshalovich, Wenzl, Willet, Zamolodchikov   +55 more
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Superintegrability on Three-Dimensional Riemannian and Relativistic Spaces of Constant Curvature

, 2005
A family of classical superintegrable Hamiltonians, depending on an arbitrary radial function, which are defined on the 3D spherical, Euclidean and hyperbolic spaces as well as on the (2+1)D anti-de Sitter, Minkowskian and de Sitter spacetimes is ...
Ballesteros, Angel, Herranz, Francisco J.   +1 more
core   +3 more sources

Properties of the Volume Operator in Loop Quantum Gravity II: Detailed Presentation

, 2010
The properties of the Volume operator in Loop Quantum Gravity, as constructed by Ashtekar and Lewandowski, are analyzed for the first time at generic vertices of valence greater than four. The present analysis benefits from the general simplified formula
, Abramowitz M, Arnowitt R, Ashtekar A, Ashtekar A, Brunnemann J, Brunnemann J, Brunnemann J, Brunnemann J, Brunnemann J Rideout D, Carbone G, David Rideout, Deift P, Dirac P A M, Dreyer O, Edmonds A R, Gantmacher F R, Giesel K, Giesel K, Giesel K, Giesel K, Giesel K, Goodale T Allen G Lanfermann G Massó J Radke T Seidel E Shalf J, Johannes Brunnemann, John V Angelov I Öncül A A Sundmacher K Thevenin D, Marcus M, Meissner K A, Rovelli C, Rovelli C, Sahlmann H, Schwabl F, Sexl R U, Thiemann T, Thiemann T, Thiemann T, Thiemann T, Varshalovich D A   +36 more
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Genome Assembly and Annotation of Vietnamese Rice Lines with Diverse Life-Cycle Durations

DNA
This study begins by examining phenotypic variations in field growth among four parental Vietnamese rice lines, consisting of two Indica (PD211/GL37) and two Japonica (J23/SRA2-1) cultivars, which differ in life-cycle durations.
Sara Franco Ortega, Luu Thi Thuy, Nguyen Trong Khanh, Le Thu Hang, Tran Thi Yen, Le Thi Ngoan, Le Thi Thanh, Pham Thien Thanh, Xinhao Ouyang, Wenjing Tao, Sally James, Lesley Gilbert, Amanda M. Davis, Leonardo D. Gomez, Andrea L. Harper, Simon J. McQueen-Mason, Duong Xuan Tu, Seth Jon Davis   +17 more
doaj   +1 more source

The quantization of the standard triadic Cantor distribution [PDF]

, 2019
The quantization scheme in probability theory deals with finding a best approximation of a given probability distribution by a probability distribution that is supported on finitely many points.
Roychowdhury, Mrinal Kanti
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Quantum tetrahedra and simplicial spin networks

, 1998
A new link between tetrahedra and the group SU(2) is pointed out: by associating to each face of a tetrahedron an irreducible unitary SU(2) representation and by imposing that the faces close, the concept of quantum tetrahedron is seen to emerge.
A. Barbieri, Ashtekar, Ashtekar, Ashtekar, Ashtekar, Baez, Barrett, De Pietri, Giannitrapani, Grot, Immirzi, Markopoulou, Misner, Penrose, Ponzano, Regge, Rovelli, Turaev, Wigner, Zapata   +19 more
core   +1 more source

Exact ground states for a class of one-dimensional frustrated quantum spin models

, 1999
We have found the exact ground state for two frustrated quantum spin-1/2 models on a linear chain. The first model describes ferromagnet- antiferromagnet transition point. The singlet state at this point has double-spiral ordering.
A. A. Ovchinnikov, A. Klumper, A. V. Chubukov, A. V. Chubukov, B. Sutherland, C. E. I. Carneiro, C. K. Majumdar, C. Lange, D. J. J. Farnell, D. V. Dmitriev, E. Dagotto, F. D. M. Haldane, H. P. Bader, I. Affleck, I. Affleck, K. Nomura, P. M. van den Broek, P. Sen, P. van Leuven, S. Knabe, S. R. White, T. Hamada, T. Tonegawa, V. Ya. Krivnov, V. Ya. Krivnov   +24 more
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Minimum wage increases and firm-level labor investment efficiency: Evidence from Korea

International Review of Economics & Finance
This study examines the impact of minimum wage increases on firm-level labor investment decisions in Korea, which experienced unprecedented wage hikes during the 2010s. Using 11,619 firm-year observations from KOSPI- and KOSDAQ-listed firms, we find that
Jungho Cho, Daecheon Yang, Eunjung Kim
doaj   +1 more source

Knot invariants from rational conformal field theories

, 1994
A framework for studying knot and link invariants from any rational conformal field theory is developed. In particular, minimal models, superconformal models and $W_N$ models are studied.
Bardacki, Bilal, Blok, Fateev, Freyd, Gaume, Goddard, Goddard, Guadgnini, Halpern, Horne, Isidro, Jones, Jones, Kastor, Kauffman, Kaul, Kaul, Kaul, Labastida, Labastida, Lashkevich, Matsuo, Moore, Mussardo, P. Ramadevi, Przytycki, R.K. Kaul, Ramadevi, Ravanini, Schwarz, T.R. Govindarajan, Witten, Wu, Yamagishi   +34 more
core   +1 more source