Results 91 to 100 of about 3,786,908 (243)
Permafrost Distribution in the Canadian Rockies: Key Variables Influencing Patch‐Scale Variability
Permafrost and Periglacial Processes, EarlyView.ABSTRACT The spatial distribution of permafrost in mountainous regions is influenced by various factors such as topography, climate, vegetation, and substrate. Despite the existence of comprehensive permafrost maps at national and global levels, they fail to accurately represent the patch‐scale (e.g., < 25 m) permafrost distribution in characteristic ...
Gerardo Zegers +2 more
wiley +1 more source
Do Single‐Sex STEM Programs Have Merit? If So, for Whom, on What Measures?
Science Education, EarlyView.ABSTRACT Single‐sex STEM programs—defined here as voluntary, gender‐segregated extracurricular or supplemental activities (e.g., summer camps, workshops, robotics clubs, internships, or citizen science initiatives)—have experienced heightened popularity and scrutiny amid efforts to increase diversity in STEM fields.
Chen Chen +4 more
wiley +1 more source
Models for Quadratic Algebras Associated with Second Order Superintegrable Systems in 2D
Symmetry, Integrability and Geometry: Methods and Applications, 2008 There are 13 equivalence classes of 2D second order quantum and classical superintegrable systems with nontrivial potential, each associated with a quadratic algebra of hidden symmetries.
Sarah Post +2 more
doaj +1 more source
Symmetry, Integrability and Geometry: Methods and Applications, 2013 We show explicitly that all 2nd order superintegrable systems in 2 dimensions are limiting cases of a single system: the generic 3-parameter potential on the 2-sphere, S9 in our listing.
Ernest G. Kalnins +2 more
doaj +1 more source
Giant Wilson loops and AdS2/dCFT1
Journal of High Energy Physics, 2020 The 1/2-BPS Wilson loop in N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills theory is an important and well-studied example of conformal defect. In particular, much work has been done for the correlation functions of operator insertions on the Wilson ...
Simone Giombi +2 more
doaj +1 more source
, 2019 Via the solutions of systems of algebraic equations of Bethe Ansatz type, we arrive at bounds for the zeros of orthogonal (basic) hypergeometric polynomials belonging to the Askey-Wilson, Wilson and continuous Hahn families.Comment: 21 pages ...
Emsiz, E., van Diejen, J. F.
core +1 more source
GenL: an extensible fitting program for Laue oscillations and whole‐pattern fitting
Journal of Applied Crystallography, EarlyView.We present GenL, a flexible program utilizing differential evolution within a genetic algorithm that can be used to simulate and/or fit X‐ray diffraction data from epitaxial thin films exhibiting Laue oscillations.GenL is a flexible program that can be used to simulate and/or fit X‐ray reflectivity and X‐ray diffraction data from epitaxial thin films ...
Anna L. Ravensburg +3 more
wiley +1 more source
Symmetry, Integrability and Geometry: Methods and Applications, 2007 Zhedanov's algebra AW(3) is considered with explicit structure constants such that, in the basic representation, the first generator becomes the second order q-difference operator for the Askey-Wilson polynomials. It is proved that this representation is
Tom H. Koornwinder
doaj
Bivariate Bannai-Ito polynomials
, 2018 A two-variable extension of the Bannai-Ito polynomials is presented. They are obtained via $q\to-1$ limits of the bivariate $q$-Racah and Askey-Wilson orthogonal polynomials introduced by Gasper and Rahman. Their orthogonality relation is obtained. These
Lemay, Jean-Michel, Vinet, Luc
core +1 more source
The factorization method for the Askey–Wilson polynomials
Journal of Computational and Applied Mathematics, 1999 A special Infeld-Hall factorization is given for the Askey-Wilson second order q-difference operator. It is then shown how to deducd a generalization of the corresponding Askey-Wilson polynomials.
openaire +3 more sources