Relevant bibliographies by topics / Manifolds with constant energy

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Manifolds with constant energy'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Manifolds with constant energy"

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Perrone, D., and L. Vergori. "Stability of contact metric manifolds and unit vector fields of minimum energy." Bulletin of the Australian Mathematical Society 76, no. 2 (2007): 269–83. http://dx.doi.org/10.1017/s0004972700039654.

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In this paper we obtain criteria of stability for ηEinstein k-contact manifolds, for Sasakian manifolds of constant ϕ-sectional curvature and for 3-dimensional Sasakian manifolds. Moreover, we show that a stable compact Einstein contact metric manifold M is Sasakian if and only if the Reeb vector field ξ minimises the energy functional. In particular, the Reeb vector field of a Sasakian manifold M of constant ϕ-holomorphic sectional curvature +1 minimises the energy functional if and only if M is not simply connected.
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Winterbone, D. E., J. R. Nichols, and G. I. Alexander. "Efficiency of the Manifolds of Turbocharged Engines." Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering 199, no. 2 (1985): 137–50. http://dx.doi.org/10.1243/pime_proc_1985_199_150_01.

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For many years there has been debate about the most efficient way of turbocharging diesel engines, particularly medium and slow speed ones. There are advocates of pulse charging, pulse converting and constant pressure exhaust systems; these techniques counterbalance the variations of transmission efficiency with turbine efficiency. A major difficulty in assessing the methods has been locating the regions of energy loss in the manifold. This paper describes a wave action method of evaluating the transmission of energy from the cylinder through the exhaust valve, via the pipes and junctions to t
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EFREMOV, VLADIMIR N., ALFONSO M. HERNÁNDEZ MAGDALENO, and CLAUDIA MORENO. "TOPOLOGICAL ORIGIN OF THE COUPLING CONSTANTS HIERARCHY IN KALUZA–KLEIN APPROACH." International Journal of Modern Physics A 25, no. 13 (2010): 2699–733. http://dx.doi.org/10.1142/s0217751x10048482.

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We consider an Abelian BF-model in the frame of ten-dimensional Kaluza–Klein approach on the space T2×X×M, where X belongs to the class of four-dimension decorated plumbed cobordisms (dp-cobordisms) and M is an An-1-singularity resolution manifold homeomorphic to a compactified ALE space. These four-dimensional manifolds with boundaries possess nontrivial cohomology properties that lead to a specific generalization of the Dirac quantization conditions and enables us to express classical partition functions in terms of 4-form fluxes through the direct product of nontrivial 2-cycles associated w
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Chen, Qun. "Stability and constant boundary-value problems of harmonic maps with potential." Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics 68, no. 2 (2000): 145–54. http://dx.doi.org/10.1017/s1446788700001907.

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AbstractLet M, N be Riemannian manifolds, f: M → N a harmonic map with potential H, namely, a smooth critical point of the functional EH(f) = ∫M[e(f)−H(f)], where e(f) is the energy density of f. Some results concerning the stability of these maps between spheres and any Riemannian manifold are given. For a general class of M, this paper also gives a result on the constant boundary-value problem which generalizes the result of Karcher-Wood even in the case of the usual harmonic maps. It can also be applied to the static Landau-Lifshitz equations.
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Shaikh, Absos Ali, Biswa Ranjan Datta, Akram Ali, and Ali H. Alkhaldi. "LCS-manifolds and Ricci solitons." International Journal of Geometric Methods in Modern Physics 18, no. 09 (2021): 2150138. http://dx.doi.org/10.1142/s0219887821501383.

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This paper is concerned with the study of [Formula: see text]-manifolds and Ricci solitons. It is shown that in a [Formula: see text]-spacetime, the fluid has vanishing vorticity and vanishing shear. It is found that in an [Formula: see text]-manifold, [Formula: see text] is an irrotational vector field, where [Formula: see text] is a non-zero smooth scalar function. It is proved that in a [Formula: see text]-spacetime with generator vector field [Formula: see text] obeying Einstein equation, [Formula: see text] or [Formula: see text] according to [Formula: see text] or [Formula: see text], wh
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OH, JOHN J., and HYUN SEOK YANG. "EINSTEIN MANIFOLDS AS YANG–MILLS INSTANTONS." Modern Physics Letters A 28, no. 21 (2013): 1350097. http://dx.doi.org/10.1142/s0217732313500971.

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It is well known that Einstein gravity can be formulated as a gauge theory of Lorentz group where spin connections play a role of gauge fields and Riemann curvature tensors correspond to their field strengths. One can then pose an interesting question: What is the Einstein equation from the gauge theory point of view? Or equivalently, what is the gauge theory object corresponding to Einstein manifolds? We show that the Einstein equations in four dimensions are precisely self-duality equations in Yang–Mills gauge theory and so Einstein manifolds correspond to Yang–Mills instantons in SO (4) = S
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Gutiérrez-Piñeres, Antonio C., Cesar S. López-Monsalvo, and Francisco Nettel. "Two-Dimensional Einstein Manifolds in Geometrothermodynamics." Advances in High Energy Physics 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/967618.

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We present a class of thermodynamic systems with constant thermodynamic curvature which, within the context of geometric approaches of thermodynamics, can be interpreted as constant thermodynamic interaction among their components. In particular, for systems constrained by the vanishing of the Hessian curvature we write down the systems of partial differential equations. In such a case it is possible to find a subset of solutions lying on a circumference in an abstract space constructed from the first derivatives of the isothermal coordinates. We conjecture that solutions on the characteristic
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Vishal, V., B. Siddharth, and C. Venkatachalam. "On the Mathematical Analysis of Black-Hole Information Loss Paradox." International Letters of Chemistry, Physics and Astronomy 18 (September 2013): 8–12. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.18.8.

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A Black-hole is an astronomical entity which possesses infinite density at its gravitational singularity or singular point. The capacity of a black-hole to completely rip-off an entire solar system without leaving any evidence is to be noted. A debate has been going on over the past few decades regarding the information storage in black-holes. The discovery of Hawking radiation, which predicts complete evaporation of mass violates unitarity ie. Conservation of probability and energy fails. Recent discoveries suggest that regular remnant of black-hole survives evaporation , as a result informat
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SARISAMAN, MUSTAFA. "PSEUDODUALITY IN SUPERSYMMETRIC SIGMA MODELS." International Journal of Modern Physics A 25, no. 15 (2010): 2997–3023. http://dx.doi.org/10.1142/s0217751x10048998.

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We study the pseudoduality transformation in supersymmetric sigma models. We generalize the classical construction of pseudoduality transformation to supersymmetric case. We perform this both by component expansion method on manifold [Formula: see text] and by orthonormal coframe method on manifold [Formula: see text]. The component expansion method yields the result that pseudoduality tranformation is not invertible at all points and occurs from all points on one manifold to only one point where Riemann normal coordinates are valid on the second manifold. Torsion of the sigma model on [Formul
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Santos, Almir Silva. "A Construction of Constant Scalar Curvature Manifolds with Delaunay-type Ends." Annales Henri Poincaré 10, no. 8 (2010): 1487–535. http://dx.doi.org/10.1007/s00023-010-0024-9.

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Dissertations / Theses on the topic "Manifolds with constant energy"

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Filho, Francisco de Assiss Benjamim. "A partial answer to the CPE conjecture, diameter estimates and manifolds with constant energy." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14748.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>Esta tese està dividida em quatro partes. Na primeira delas estudaremos pontos crÃticos do funcional curvatura escalar total restrito ao espaÃo das mÃtricas de curvatura escalar constante e volume unitÃrio. Provaremos que sob certas condiÃÃes integrais convenientes os pontos crÃticos de tal funcional sÃo variedades de Einstein provando assim a conjectura dos pontos crÃticos neste caso. Na segunda parte, veremos duas estimativas para o primeiro autovalor do Laplaciano d
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Garcia-Leon, Joel. "Cheeger constant and isoperimetric inequalities on Riemannian manifolds." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417041.

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Thomas, Joseph. "Conformal Variations of Piecewise Constant Curvature Two and Three Dimensional Manifolds." Diss., The University of Arizona, 2015. http://hdl.handle.net/10150/560854.

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Piecewise constant curvature manifolds are discrete analogues of Riemannian manifolds in which edge lengths play the role of the metric tensor. These triangulated manifolds are specified by two types of data: 1. Each edge in the triangulation is assigned a real-valued length. 2. For each simplex in the triangulation, there exists an isometric embedding of that simplex into one of three background geometries (Euclidean, hyperbolic, or spherical). In particular, this isometry respects the edge length data. By making the edge lengths functions of scalars, called conformal parameters, that are ass
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Santos, Almir Rogério Silva. "A construction of constant scalar curvature manifolds with delaunay-type ends." reponame:Repositório Institucional da UFS, 2009. https://ri.ufs.br/handle/riufs/825.

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Foi provado por Byde que é possível adicionar um fim do tipo Delaunay a uma variedade compacta não degenerada de curvatura escalar constante positiva; desde que ela seja localmente conformemente plana em alguma vizinhança do ponto de colagem. A variedade resultante é não-compacta e possui a mesma curvatura escalar constante. O principal objetivo desta tese é generalizar este resultado. Construiremos uma família a um parâmetro de soluções para o problema de Yamabe singular positivo em qualquer variedade compacta não degenerada cujo tensor de Weyl anula-se até uma ordem suficientemente grande no
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Zhang, Tan. "Manifolds with indefinite metrics whose skew-symmetric curvature operator has constant eigenvalues /." view abstract or download file of text, 2000. http://wwwlib.umi.com/cr/uoregon/fullcit?p9978605.

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Thesis (Ph. D.)--University of Oregon, 2000.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 123-128). Also available for download via the World Wide Web; free to University of Oregon users.
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Zhang, Tan 1969. "Manifolds with indefinite metrics whose skew-symmetric curvature operator has constant eigenvalues." Thesis, University of Oregon, 2000. http://hdl.handle.net/1794/150.

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Adviser: Peter B. Gilkey. ix, 128 leaves<br>A print copy of this title is available through the UO Libraries under the call number: MATH QA613 .Z43 2000<br>Relative to a non-degenerate metric of signature (p, q), an algebraic curvature tensor is said to be IP if the associated skew-symmetric curvature operator R(π) has constant eigenvalues and if the kernel of R(π) has constant dimension on the Grassmanian of non-degenerate oriented 2-planes. A pseudo-Riemannian manifold with a non-degenerate indefinite metric of signature (p, q) is said to be IP if the curvature tensor of the Levi-Civita c
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Gutierrez, Manuel S. M. Massachusetts Institute of Technology. "An energy buffer for constant power loads." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111914.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 111-113).<br>Constant power loads (CPLs) are a class of loads steadily increasing in use. They are present whenever a load is regulated to maintain constant output power, such as with LED drivers in high quality lighting that is impervious to input fluctuations. Because CPLs exhibit a negative incremental input impedance, they pose stability concerns in DC and AC systems. This thesis presents
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Lohkamp, Joachim. "Existenz von Metriken negativer Ricci-Krümmung." Bonn : [s.n.], 1992. http://catalog.hathitrust.org/api/volumes/oclc/29040814.html.

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Ektas, Tevfik. "Energy consumption at KTH : Foundation for constant improvement." Thesis, KTH, Industriell ekologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-191264.

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Som ett universitet som har erhållit bottenbetyg bland statliga myndigheter 2009 har KTH idag en vision om att bli ett av Europas ledande universitet inom miljö och hållbar utveckling. Syftet med detta examensarbete var att undersöka KTH:s energianvändning utifrån ett systemperspektiv med delsyftet att resultatet ska kunna användas som ett underlag med konkreta förbättringsförslag. För att uppnå detta har en energikartläggning av KTH:s skolor och nulägesbeskrivning utförts. Vidare har en intervjustudie genomförts för att erhålla en fördjupning i det energiarbete KTH och Akad
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Vržina, Miroslav [Verfasser], Karsten [Akademischer Betreuer] Große-Brauckmann, and Matthias [Akademischer Betreuer] Schneider. "Constant Mean Curvature Annuli in Homogeneous Manifolds / Miroslav Vržina. Betreuer: Karsten Große-Brauckmann ; Matthias Schneider." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2016. http://d-nb.info/111226924X/34.

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Books on the topic "Manifolds with constant energy"

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Spaces of constant curvature. 6th ed. AMS Chelsea Pub., 2011.

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Separation of variables for Riemannian spaces of constant curvature. Longman Scientific & Technical (Mass.), 1986.

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Kalnins, E. G. Separation of variables for Riemannian spaces of constant curvature. Longman Scientific & Technical, 1986.

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Separation of variables in Riemannian spaces of constant curvature. Pitman Advanced Publishing Program, 1986.

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Borzou, Ahmad. Theoretical and Experimental Approaches to Dark Energy and the Cosmological Constant Problem. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69632-4.

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Paolo, Soriani, ed. The N=2 wonderland: From Calabi-Yau manifolds to topological field-theories. World Scientific Pub., 1995.

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Conference, International Association for Energy Economics North American. The structure of the energy industries: The only constant is change : conference proceedings, 20th Annual North American Conference, August 29 to September 1, 1999, Hilton in the Walt Disney World Resort, Orlando, Florida. The Associations, 1999.

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Mero, Antti. Electromyographic activity, force and anaerobic energy production in sprint running: With special reference to different constant speeds ranging from submaximal to supramaximal. University of Jyväskylä, 1987.

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Josephs, Barry D. Gaseous chemical reaction equilibrium: Application of the Gibbs free energy to closed batch or steady state gaseous reaction systems and derivation procedures for the chemical equilibrium constant. Published by Higginson Book Company, 2012.

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Josephs, Barry D. Gaseous chemical reaction equilibrium: Application of the Gibbs free energy to closed btch or steady state gaseous reaction systems and derivation procedures for the chemical equilibrium constant. 3rd ed. Higginson Book Co., 2011.

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Book chapters on the topic "Manifolds with constant energy"

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Fomenko, Anatoly T., and Kirill I. Solodskih. "Three-Dimensional Manifolds of Constant Energy and Invariants of Integrable Hamiltonian Systems." In Understanding Complex Systems. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96755-4_2.

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Lee, Keum W., and Sahjendra N. Singh. "Hamiltonian-Based Libration Point Orbit Control on Manifold of Constant Energy." In Proceedings of the 27th International Conference on Systems Engineering, ICSEng 2020. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65796-3_5.

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Irigoyen, Maylis. "Structure of the 5-Dimensional Manifold of Constant Energy in the J 2-Problem." In Hamiltonian Systems with Three or More Degrees of Freedom. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4673-9_49.

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Wedhorn, Torsten. "Cohomology of Constant Sheaves." In Manifolds, Sheaves, and Cohomology. Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-10633-1_11.

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Abate, Marco, and Giorgio Patrizio. "Manifolds with constant holomorphic curvature." In Finsler Metrics—A Global Approach. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/bfb0073983.

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Isenberg, James, and Vincent Moncrief. "Some Results on Non Constant Mean Curvature Solutions of the Einstein Constraint Equations." In Physics on Manifolds. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1938-2_21.

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Laurent-Gengoux, Camille, Anne Pichereau, and Pol Vanhaecke. "Constant Poisson Structures, Regular and Symplectic Manifolds." In Grundlehren der mathematischen Wissenschaften. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31090-4_6.

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Fröhlich, Claus. "Solar Constant solar constant and Total Solar Irradiance Variations total solar irradiance (TSI) variations." In Solar Energy. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5806-7_443.

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Cheeger, Jeff. "A vanishing theorem for piecewise constant curvature spaces." In Curvature and Topology of Riemannian Manifolds. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/bfb0075646.

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Dekster, B. "Bodies of constant width in Riemannian manifolds and spaces of constant curvature." In DIMACS Series in Discrete Mathematics and Theoretical Computer Science. American Mathematical Society, 1991. http://dx.doi.org/10.1090/dimacs/004/14.

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Conference papers on the topic "Manifolds with constant energy"

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Abood, Habeeb M., and Farah Hassan Al-Hussaini. "Constant curvature of a locally conformal almost cosymplectic manifold." In CURRENT TRENDS IN RENEWABLE AND ALTERNATE ENERGY. Author(s), 2019. http://dx.doi.org/10.1063/1.5095088.

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Tirkey, J. V., H. N. Gupta, and S. K. Shukla. "Integrated Gas Dynamic and Thermodynamic Computational Modeling of Multicylinder 4-Stroke Spark Ignition Engine Using Gasoline as Fuel." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56497.

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This paper presents a computational tool for the evaluation of engine performance and exhaust emissions for four stroke multi-cylinder spark ignition engine which uses gasoline as fuel. Gas dynamics flow in multi-cylinder intake and exhaust systems are modeled by using one dimensional unsteady compressible flow equations. The hyperbolic partial differential equations are transferred into a set of ordinary differential equations by using method of characteristics and solved by finite difference method. Compatibility relationships between local fluid velocity (U) and sonic velocity (a) are expre
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Chakraborty, Rudrasis, Dohyung Seo, and Baba C. Vemuri. "An Efficient Exact-PGA Algorithm for Constant Curvature Manifolds." In 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR). IEEE, 2016. http://dx.doi.org/10.1109/cvpr.2016.431.

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Hofer, Michael, and Helmut Pottmann. "Energy-minimizing splines in manifolds." In ACM SIGGRAPH 2004 Papers. ACM Press, 2004. http://dx.doi.org/10.1145/1186562.1015716.

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Cui, Yi, Kangyao Deng, and Lei Shi. "Turbocharging System Design and Performance Analysis of a Marine Diesel Engine." In ASME 2013 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icef2013-19229.

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The selection of turbocharging systems for 8-cylinder marine diesel engines is difficult due to the existence of scavenge interference between cylinders. The constant pressure and pulse converter turbocharging systems have been used to eliminate the scavenge interference by applying large volume exhaust manifolds or grouped exhaust branches according to the firing order. But, the performance of constant pressure turbocharging system under low speed conditions of propulsion characteristics and transient conditions is poor, because of less available exhaust gas energy. The structure and arrangem
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Diaa, Mustapha, and Fethi Latti. "Non linear analysis on manifolds on generalized F-energy variation, between Riemannian manifolds." In 2ND INTERNATIONAL CONFERENCE ON APPLIED MATHEMATICS, ICAM’2018. Author(s), 2019. http://dx.doi.org/10.1063/1.5090638.

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Hansen, Anders Hedegaard, and Henrik C. Pedersen. "Reducing Fatigue Loading due to Pressure Shift in Discrete Fluid Power Force Systems." In 9th FPNI Ph.D. Symposium on Fluid Power. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fpni2016-1506.

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Discrete Fluid Power Force Systems is one of the topologies gaining focus in the pursuit of lowering energy losses in fluid power transmission systems. The cylinder based Fluid Power Force System considered in this article is constructed with a multi-chamber cylinder, a number of constant pressure lines and a valve manifold. The valve manifold is used to control the connections between the cylinder chambers and the pressure lines and hereby the resulting force form the cylinder. The valve manifold is equipped with fast on/off valves. However, shifting between pressure lines may yield pressure
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Okayasu, Takashi. "Closed Hypersurfaces in Riemannian Manifolds Whose Second Fundamental Form are of Constant Length." In INTERNATIONAL WORKSHOP ON COMPLEX STRUCTURES, INTEGRABILITY AND VECTOR FIELDS. AIP, 2011. http://dx.doi.org/10.1063/1.3567128.

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Hari, C. V., and Praveen Sankaran. "Embedding vehicle driver face poses on manifolds." In 2017 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES). IEEE, 2017. http://dx.doi.org/10.1109/spices.2017.8091362.

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Norhisam, M., R. N. Firdaus, F. Azhar, N. Mariun, I. Aris, and Razak J. Abdul. "The analysis on effect of thrust constant, spring constant, electrical time constant, mechanical time constant to oscillation displacement of slot-less linear oscillatory actuator." In 2008 IEEE 2nd International Power and Energy Conference (PECon). IEEE, 2008. http://dx.doi.org/10.1109/pecon.2008.4762635.

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Reports on the topic "Manifolds with constant energy"

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Kratochvil, J. Testing the Cosmological constant as a Candidate for Dark Energy. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/826636.

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Larentzos, James P., John K. Brennan, Joshua D. Moore, and William D. Mattson. User Manual and Source Code for a LAMMPS Implementation of Constant Energy Dissipative Particle Dynamics (DPD-E). Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada606466.

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Martirena, Saul Gonzalez. A calorimetric measurement of the strong coupling constant in electron-positron annihilation at a center-of-mass energy of 91.6 GeV. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10147366.

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Bahman Habibzadeh. Very High Fuel Economy, Heavy Duty, Constant Speed, Truck Engine Optimized Via Unique Energy Recovery Turbines and Facilitated High Efficiency Continuously Variable Drivetrain. Office of Scientific and Technical Information (OSTI), 2010. http://dx.doi.org/10.2172/992845.

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Maydykovskiy, Igor, and Petras Užpelkis. The Physical Essence of Time. Intellectual Archive, 2020. http://dx.doi.org/10.32370/iaj.2450.

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The article considers the model of the space-frequency-time continuum, according to which the physical essence of Time is manifested as a fraction of electromagnetic energy spent on updating a material object in a cyclic process of copying-incarnation. For all structural levels of physical reality, the value of this fraction is a fundamental constant, which can be represented as the tangent of the loss angle, or expressed in radians, as the angle of inclination of the evolutionary spiral, which characterizes the rate of change of states or the duration of events and processes. The value of thi
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