Academic literature on the topic 'Pseudotensore'
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Journal articles on the topic "Pseudotensore"
Мурашкин, Евгений Валерьевич, and Юрий Николаевич Радаев. "Algebraic algorithm for the systematic reduction of one-point pseudotensors to absolute tensors." Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, no. 1(51) (October 5, 2022): 19–28. http://dx.doi.org/10.37972/chgpu.2022.51.1.002.
Full textРадаев, Юрий Николаевич, Евгений Валерьевич Мурашкин, and Тимофей Константинович Нестеров. "Pseudotensor formalism for neuber’s micropolar elasticity theory." Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, no. 4(50) (December 30, 2021): 73–81. http://dx.doi.org/10.37972/chgpu.2021.50.4.006.
Full textMurashkin, E. V., and Yu N. Radayev. "SCHOUTEN'S FORCE STRESS TENSOR AND AFFINOR DENSITIES OF POSITIVE WEIGHT." Problems of Strength and Plasticity 84, no. 4 (2022): 545–58. http://dx.doi.org/10.32326/1814-9146-2022-84-4-545-558.
Full textCrothers, Stephen J. "The Einstein and Landau‐Lifshitz pseudotensors—A mathematical note on existence." Physics Essays 33, no. 3 (September 17, 2020): 268–70. http://dx.doi.org/10.4006/0836-1398-33.3.268.
Full textCapozziello, Salvatore, Maurizio Capriolo, and Maria Transirico. "The gravitation energy–momentum pseudotensor: The cases of F(R) and F(T) gravity." International Journal of Geometric Methods in Modern Physics 15, supp01 (November 2018): 1850164. http://dx.doi.org/10.1142/s0219887818501645.
Full textМурашкин, Евгений Валерьевич, and Юрий Николаевич Радаев. "The generalized stokes integral theorem for a covariant pseudotensor field." Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, no. 3(49) (December 29, 2021): 66–74. http://dx.doi.org/10.37972/chgpu.2021.49.3.010.
Full textChen, Chiang-Mei, Jian-Liang Liu, and James M. Nester. "Gravitational energy is well defined." International Journal of Modern Physics D 27, no. 14 (October 2018): 1847017. http://dx.doi.org/10.1142/s021827181847017x.
Full textМурашкин, Евгений Валерьевич, and Юрий Николаевич Радаев. "On a pseudotensor generalization of the Hugoniot-Hadamard linking boundary conditions." Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, no. 2(48) (October 29, 2021): 104–14. http://dx.doi.org/10.37972/chgpu.2021.48.2.013.
Full textМурашкин, Евгений Валерьевич, and Юрий Николаевич Радаев. "Covariantly constant tensors in Euclid spaces. Elements of the theory." Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, no. 2(52) (December 12, 2022): 106–17. http://dx.doi.org/10.37972/chgpu.2022.52.2.012.
Full textTreml, T. F. "Dimensional regularization and the path-integral approach to photon mass in the Schwinger model." Canadian Journal of Physics 67, no. 5 (May 1, 1989): 515–18. http://dx.doi.org/10.1139/p89-094.
Full textDissertations / Theses on the topic "Pseudotensore"
Capriolo, Maurizio. "Lo pseudotensore energia-impulso in teorie estese della gravitazione." Doctoral thesis, Universita degli studi di Salerno, 2018. http://elea.unisa.it:8080/xmlui/handle/10556/4238.
Full textThe gravitational field’s energy and momentum definitions are treated in extensive gravitation theories, through the generalization of the energymomentum pseudotensor, defined by Einstein in general relativity. This extension was obtained by modifying the Lagrangian of Hilbert-Einstein or by using a different connection from the one of Levi- Civita as that of Weitzenböck for teleparallel theories. We have firstly obtained the gravitational energy-momentum pseudotensor for extended Lagrangians that depend on the metric gμ⌫ and on its derivatives up to nth order and then demonstrated, in general, its affine and non-covariant behavior. Then we applied the weak field limit to Euler-Lagrange equations associated to the Lagrangian which depends linearly on the ⇤R terms and derived the modified gravitational waves with six polarization states, three transverse and three not, with helicity 0 and 2. Subsequently we have obtained, through the Noether theorem for infinitesimal rigid translations, the relative energy-momentum pseudotensor and after having developed it to the order h2 and mediated on an suitable domain, we have calculated the power emitted from a possible gravitational radiant source. For gravity f (R) and f (T) we have obtained the respective energy-momentum pseudotensors and, via the border therm B which connects the curvature R to the torsion T, we have studied the relative pseudotensor ⌧↵ #|!(T,B) allowing us to link ⌧↵ #|f(R) and ⌧↵ #|f(T). Finallywehave obtained the equations for two theories of higher order telepallel gravity: in particular for the Lagrangian L⇤kT = h ! T + Pp k=0 akT⇤kT # and for the sixth order telepallel gravity equivalent to LR⇤R = p−g (−R + a0R2 + a1R⇤R). [edited by author]
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Du, Wenwen. "Material Tensors and Pseudotensors of Weakly-Textured Polycrystals with Orientation Measure Defined on the Orthogonal Group." UKnowledge, 2014. http://uknowledge.uky.edu/math_etds/22.
Full textChang, Chia-Chen, and 張佳正. "The Localization of Gravitational Energy: Pseudotensors and." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/02593741591016480346.
Full text國立中央大學
物理學系
86
We investigate the relation between pseudotensors and quasilocal expressionsin this thesis. The starting point is that energy and momentum should be consideredas the value of the Hamiltonian. By applying the covariant Hamiltonian analysis, wecome up with a set of covariant symplectic boundary expressions which depend ona reference configuration and a displacement vector field and determine the valueof quasilocal quantity. By adopting their vacuum GR formulations and choosing appropriatereference configurations and frames, these expressions will reduce to superpotentials.Conversely superpotentials are Hamiltonian boundary terms. The idea isthat since the integral of the divergence of a superpotential is the totalenergy-momentum, we may expression this as an integral of an ADM Hamiltonian witha boundary term which is the superpotential. The validity of this techniquedepends upon the fact that the variation of superpotentials can give thedesired asymptotically vanishing value at infinity which is required to guaranteethe correctness of the Hamiltonian field equation. With the help of thesymplectic idea, we can understand the boundary condition of eachsuperpotential by calculating their variation. Hence pseudotensors are reallyquasilocal and correspond to various boundary conditions.
Chung-Chin, Tsai, and 蔡崇欽. "Landau-Lifshitz Pseudotensor Applied on Numerical Relativity." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/07587713576981367822.
Full textSo, Lau-Loi, and 蘇樓來. "Quasi-local energy-momentum and pseudotensors for GR in small regions." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/35696956976231977181.
Full text國立中央大學
物理研究所
94
The localization of energy-momentum for gravitating systems has remained an important problem since the time of Einstein. Due to the equivalence principle there is no proper energy-momentum density. Traditional approaches led to a va- riety of reference frame dependent expressions, referred to as pseudotensors. A more modern idea is quasilocal energy-momentum. C.M. Chen, using a covariant Hamiltonian formalism, gave four preferred Hamiltonian boundary term quasilocal energy-momentum expressions. The classical pseudotenor expressions, as well as the quasilocal expressions generally agree for the total (i.e. global) values but give quite di®erent values locally. It is desirable to ‾nd some way to choose which expression gives a better description of the energy-momentum for a gravitating system. Here we shall test both the well-known classical pseudotensors (in particular, Einstein, Papapetrou, Landau-Lifshits ' Bergmann-Thomson, M¿ller (1958), M¿ller (1961), Weinberg) and the covariant Hamiltonian quasilocal boundary expressions in a dif- ferent regime, namely the small region limit|both inside matter and in vacuum. All of the expressions|except for M¿ller's 1958 expression|give the correct mate- rial limit. In small vacuum regions we found some interesting results which allows us to choose which expressions satisfy an important physical property: positive en- ergy. None of the classical pseudotensors satis‾es this positivity property, however there is a one-parameter set of linear combinations which, to lowest non-vanishing order is proportional to the Bel-Robinson tensor and hence is positive for small regions. Moreover, we have constructed an in‾nite set (with 10 constant parame- ters) of additional new holonomic pseudotensors which, although rather contrived, satisfy this important positive energy requirement. On the other hand we found that M¿ller's 1961 teleparallel-tetrad energy-momentum expression naturally has this Bel-Robinson property. For C.M. Chen's covariant-symplectic quasilocal ex- pressions we found that one, corresponding to the natural boundary choices, gives this desired Bel-Robinson positivity result in orthonormal frames. Moreover within a two parameters modi‾cation of the Chen-Nester four expressions, one gives an extra nice result in holonomic frames.
Book chapters on the topic "Pseudotensore"
Man, Chi-Sing. "Tensor and Pseudotensor Representations of SO(3), O(3), and Their Finite Subgroups." In Crystallographic Texture and Group Representations, 337–59. Dordrecht: Springer Netherlands, 2023. http://dx.doi.org/10.1007/978-94-024-2158-3_16.
Full textRaychaudhuri, A. K., S. Banerji, and A. Banerjee. "The Energy—Momentum Pseudotensor of the Gravitational Field and Loss of Energy by Gravitational Radiation." In Astronomy and Astrophysics Library, 105–13. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2754-0_8.
Full textConference papers on the topic "Pseudotensore"
Guo, Jia, Weiwei Jiang, and Zhu Benchao. "Einstein Energy-Momentum Pseudotensor in Generalized Covariant Equation." In 2016 International Conference on Education, Management and Computer Science. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icemc-16.2016.241.
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