Results 21 to 30 of about 528,200 (268)
Spline Curves Formation Given Extreme Derivatives
Mathematics, 2020 This paper is dedicated to development of mathematical models for polynomial spline curve formation given extreme vector derivatives. This theoretical problem is raised in the view of a wide variety of theoretical and practical problems considering ...
Konstantin Panchuk +2 more
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Symmetries and strings of adjoint QCD2
Journal of High Energy Physics, 2021 We revisit the symmetries of massless two-dimensional adjoint QCD with gauge group SU(N). The dynamics is not sufficiently constrained by the ordinary symmetries and anomalies.
Zohar Komargodski +3 more
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How Platonic and Archimedean solids define natural equilibria of forces for tensegrity [PDF]
FME Transactions, 2019 The Platonic and Archimedean solids are a well-known vehicle to describe certain phenomena of our surrounding world. It can be stated that they define natural equilibria of forces, which can be clarified particularly through the packing of spheres. [1][2]
Eichenauer Friedrich Martin +1 more
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Electrobaromembrane apparatuses: Classification and particular application for wastewater treatment [PDF]
Acta Periodica Technologica, 2019 The aims of this work are developing the electrobaromembrane apparatus classification and study of the particular case of electrobaromembrane process application for wastewater treatment in engineering industries.
Lazarev Sergey I. +2 more
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Dynamics of a Modified Sprott A System [PDF]
ITM Web of ConferencesWe examine a modified Sprott A system, one of the 17 chaotic systems without equilibria introduced by Jafari, Sprott, and Golpayegani (2013). For specific parameter values, the modified system exhibits invariant spheres.
Rohman Muhammad Nuur +2 more
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Nicolai maps with four-fermion interactions
Journal of High Energy Physics, 2023 Nicolai maps offer an alternative description of supersymmetric theories via nonlinear and nonlocal transformations characterized by the so-called ‘free-action’ and ‘determinant-matching’ conditions.
Lorenzo Casarin +2 more
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The geometry of Sloppiness [PDF]
Journal of Algebraic Statistics, 2018 The use of mathematical models in the sciences often requires the estimation of unknown parameter values from data. Sloppiness provides information about the uncertainty of this task. In this paper, we develop a precise mathematical foundation for sloppiness and define rigorously its key concepts, such as `model manifold', in relation to concepts of ...
Dufresne, Emilie Sonia +2 more
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Geodesics on Calabi-Yau manifolds and winding states in nonlinear sigma models
Frontiers in Physics, 2013 We conjecture that a non-flat D-real-dimensional compact Calabi-Yau manifold, such as a quintic hypersurface with D=6, or a K3 manifold with D=4, has locally length minimizing closed geodesics, and that the number of these with length less than L grows ...
Peng eGao, Michael R. Douglas
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International Journal of Modern Physics D, 2004 Extra-dimensional theories contain additional degrees of freedom related to the geometry of the extra space which can be interpreted as new particles. Such theories allow to reformulate most of the fundamental problems of physics from a completely different point of view.
Ruiz Cembranos, José Alberto +2 more
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