586 research outputs found
On The Lane-emden System In Dimension One
No full textWe carry out a complete group classification of the nonlinear Lane-Emden systems in dimension one. © 2012 Elsevier Inc. All rights reserved.218211076210766Bluman, G.W., Anco, S., (2002) Symmetry and Integration Methods for Differential Equations, , Springer New YorkBluman, G.W., Kumei, S., (1989) Symmetries and Differential Equations, 81. , Applied Mathematical Sciences Springer New YorkBokhari, A.H., Mahomed, F.M., Zaman, F.D., Symmetries and integrability of a fourth-order Euler-Bernoulli beam equation (2010) J. Math. Phys., 51, p. 053517Bozhkov, Y., Gilli Martins, A.C., Lie point symmetries of the Lane-Emden systems (2004) Journal of Mathematical Analysis and Applications, 294 (1), pp. 334-344. , DOI 10.1016/j.jmaa.2004.02.022, PII S0022247X04001532Bozhkov, Y., Freire, I.L., Symmetry analysis of the bidimensional Lane-Emden systems (2012) J. Math. Anal. Appl., 388, pp. 1279-1284. , 10.1016/j.jmaa.2011.11.024Bozhkov, Y., Freire, I.L., (2012) The Complete Group Classification of Lane-Emden Systems, , in preparationDai, Q., Tisdell, C., Nondegeneracy of positive solutions to homogeneous second-order differential systems and its applications (2009) Acta Math. Sci. Ser., 29, pp. 435-446Freire, I.L., Silva, P.L., Torrisi, M., Symmetry and Integrability of A Fourth-order Emden-Fowler Equation, , 2012 submitted for publicationIbragimov, N.H., (1985) Transformation Groups Applied to Mathematical Physics, , Translated from the Russian Mathematics and its Applications (Soviet Series) D. Reidel Publishing Co. DordrechtIbragimov, N.H., Integrating factors, adjoint equations and Lagrangians (2006) Journal of Mathematical Analysis and Applications, 318 (2), pp. 742-757. , DOI 10.1016/j.jmaa.2005.11.012, PII S0022247X05011546Ibragimov, N.H., A new conservation theorem (2007) J. Math. Anal. Appl., 333, pp. 311-328Muatjetjeja, B., Khalique, C.M., Lagrangian approach to a generalized coupled Lane-Emden system: Symmetries and first integrals (2010) Commun. Nonlinear Sci. Numer. Simulat., 15, pp. 1166-1171Muatjetjeja, B., Khalique, C.M., Noether partial Noether operators and first integrals for the coupled Lane-Emden system (2010) Math. Comput. Appl., 15, pp. 325-333Muatjetjeja, B., Khalique, C.M., First integrals for a generalized coupled Lane-Emden system (2011) Nonlinear Anal. Real World Appl., 12, pp. 1202-1212Olver, P.J., (1986) Applications of Lie Groups to Differential Equations, , Springer New Yor
Group Classification Of Semilinear Kohn-laplace Equations
No full textWe study the Lie point symmetries of semilinear Kohn-Laplace equations on the Heisenberg group H1 and obtain a complete group classification of these equations. © 2007 Elsevier Ltd. All rights reserved.68925522568American Mathematical Society, MathSciNet Search, Matches for: Heisenberg group, Number of Matches = 624, 15 January 2007Baaquie, B.E., Yim, K.K., Sigma model Lagrangian for the Heisenberg group (2005) Phys. Lett. B, 615, pp. 134-140Beals, R., Geometry and PDE on the Heisenberg group: A case study (2001) Contemp. Math., 285, pp. 21-27Biagini, S., Positive solutions for a semilinear equation on the Heisenberg group (1995) Boll. Unione. Mat. Ital. Sez. B (7), 9, pp. 883-900Birindelli, I., Capuzzo Dolcetta, I., Cutri, A., Indefinite semi-linear equations on the Heisenberg group: A priori bounds and existence (1995) Comm. Partial Differential Equations, 23, pp. 1123-1157Birindelli, I., Lanconelli, E., A negative answer to a one-dimensional symmetry problem in the Heisenberg group (2003) Calc. Var. Partial Differential Equations, 18, pp. 357-372Bluman, G.W., Simplifying the form of Lie groups admitted by a given differential equation (1990) J. Math. Anal. Appl., 145, pp. 52-62Bluman, G.W., Kumei, S., (1989) Symmetries and Differential Equations, , Springer, New YorkBozhkov, Y., Noether symmetries and critical exponents (2005) SIGMA Symmetry Integrability Geom. Methods Appl., 1. , 12. Paper 022, electronicBozhkov, Y., Divergence symmetries of semilinear polyharmonic equations involving critical nonlinearities (2006) J. Differential Equations, 225, pp. 666-684Y. Bozhkov, I.L. Freire, Divergence symmetries of critical Kohn-Laplace equations on Heisenberg groups, Quaderni Matematici, n. 571, Università di Trieste, 2006, Differ. Equ (Differ. Uravn) (2007) (in press)Y. Bozhkov, I.L. Freire, Conservation laws for critical semilinear Kohn-Laplace equations on the Heisenberg group, 2007, R. P. 04/07, February 2007, IMECC-UNICAMP (submitted for publication)Y. Bozhkov, I.L. Freire, Invariant solutions of Kohn-Laplace equations on the Heisenberg group, 2007 (in preparation)Folland, G.B., (1989) Annals of Mathematics Studies, 122. , Princeton University Press, Princeton, NJFolland, G.B., Stein, E.M., Estimates for the over(∂, ̄)b complex and analysis on the Heisenberg group (1974) Comm. Pure Appl. Math., 27, pp. 429-522Garofalo, N., Lanconelli, E., Zero-order perturbations of the subelliptic Laplacian on the Heisenberg group and their uniqueness properties (1990) Bull. Amer. Math. Soc. (N.S.), 23, pp. 501-512Garofalo, N., Lanconelli, E., Frequency functions on the Heisenberg group, the uncertainty principle and unique continuation (1990) Ann. Inst. Fourier (Grenoble), 40, pp. 313-356Garofalo, N., Lanconelli, E., Existence and nonexistence results for semilinear equations on the Heisenberg group (1992) Indiana Univ. Math. J., 41, pp. 71-98Hörmander, L., Hypoelliptic second order differential equations (1967) Acta Math., 119, pp. 147-171Howe, R., On the role of the Heisenberg group in harmonic analysis (1980) Bull. Amer. Math. Soc. (N.S.), 3, pp. 821-843Hueber, H., Müller, D., Asymptotics for some Green kernels on the Heisenberg group and the Martin boundary (1989) Math. Ann., 283, pp. 97-119Ibragimov, N.H., (1985) Transformation Groups Applied to Mathematical Physics, , D. Reidel Publishing Co., Dordrecht Translated from Russian Mathematics and its Applications (Soviet Series)Jerison, D.S., The Dirichlet problem for the Kohn Laplacian on the Heisenberg group. I (1981) J. Funct. Anal., 43, pp. 97-142Jerison, D.S., The Dirichlet problem for the Kohn Laplacian on the Heisenberg group. II (1981) J. Funct. Anal., 43, pp. 224-257Jerison, D.S., Lee, J.M., Intrinsic CR normal coordinates and the CR Yamabe problem (1989) J. Differential Geom., 29, pp. 303-343Jerison, D.S., Lee, J.M., Extremals for the Sobolev inequality on the Heisenberg group and the CR Yamabe problem (1988) J. Amer. Math. Soc., 1, pp. 1-13Olver, P.J., (1986) GTM, 107. , Springer, New YorkOvsiannikov, L.V., (1982) Group Analysis of Differential Equations, , Academic Press, New York, London Translated from RussianPohozaev, S.I., Veron, L., Nonexistence results of solutions of semilinear differential inequalities on the Heisenberg group (2000) Manuscripta Math., 102, pp. 85-99Svirshchevskii, S.R., Group classification of nonlinear polyharmonic equations and their invariant solutions (1993) Differ. Equ., 29, pp. 1538-1547. , Differ. Uravn. 29 (10), 1772-1781 (in Russian
O IMPACTO DOS TRIBUTOS NO PREÇO ABSOLUTO
No full text<p>O presente trabalho tem como objetivo mostrar a influência dos impostos na formação de preços de venda, a importância de um bom planejamento tributário, é possível concluir os impactos na formação do custo de aquisição, assim como na também formação do preço de absoluto deve ser estratégia a ser considera pelas empresas, já que praticamente pequenas alterações nos custos provocam, por vezes, grandes impactos no preço de venda e, por consequência, na capacidade competitiva de qualquer empresa.</p>
Nonlinear Self-adjoint Classification Of A Burgers-kdv Family Of Equations
No full textThe concepts of strictly, quasi, weak, and nonlinearly self-adjoint differential equations are revisited. A nonlinear self-adjoint classification of a class of equations with second and third order is carried out. © 2014 Júlio Cesar Santos Sampaio and Igor Leite Freire.2014Ibragimov, N.H., A new conservation theorem (2007) Journal of Mathematical Analysis and Applications, 333 (1), pp. 311-328. , 10.1016/j.jmaa.2006.10.078 MR2323493 ZBL1160.35008Ibragimov, N.H., Integrating factors, adjoint equations and Lagrangians (2006) Journal of Mathematical Analysis and Applications, 318 (2), pp. 742-757. , 10.1016/j.jmaa.2005.11.012 MR2215182 ZBL1102.34002Ibragimov, N.H., Nonlinear self-adjointness and conservation laws (2011) Journal of Physics A: Mathematical and Theoretical, 44. , 432002 10.1088/1751-8113/44/43/432002Ibragimov, N.H., Nonlinear self-adjointness in constructing conservation laws (2011) Archives of ALGA, 7-8, pp. 1-90Atherton, R.W., Homsy, G.M., On the existence and formulation of variational principles for nonlinear differential equations (1975) Stuides in Applied Mathematics, 54 (1), pp. 31-60. , MR0458271 ZBL0322.49019Gandarias, M.L., Weak self-adjoint differential equations (2011) Journal of Physics A: Mathematical and Theoretical, 44 (26). , 262001 10.1088/1751-8113/44/26/262001Bruzón, M.S., Gandarias, M.L., Ibragimov, N.H., Self-adjoint sub-classes of generalized thin film equations (2009) Journal of Mathematical Analysis and Applications, 357 (1), pp. 307-313. , 10.1016/j.jmaa.2009.04.028 MR2526830 ZBL1170.35439Freire, I.L., Self-adjoint sub-classes of third and fourth-order evolution equations (2011) Applied Mathematics and Computation, 217 (22), pp. 9467-9473. , 10.1016/j.amc.2011.04.041 MR2804024 ZBL1219.35048Gandarias, M.L., Redondo, M., Bruzón, M.S., Some weak self-adjoint Hamilton-Jacobi-Bellman equations arising in financial mathematics (2012) Nonlinear Analysis. Real World Applications, 13 (1), pp. 340-347. , 10.1016/j.nonrwa.2011.07.041 MR2846844 ZBL1238.35048Gandarias, M.L., Bruzón, M.S., Some conservation laws for a forced KdV equation (2012) Nonlinear Analysis. Real World Applications, 13 (6), pp. 2692-2700. , 10.1016/j.nonrwa.2012.03.013 MR2927217 ZBL1268.35106Gandarias, M.L., Weak self-adjointness and conservation laws for a porous medium equation (2012) Communications in Nonlinear Science and Numerical Simulation, 17 (6), pp. 2342-2349. , 10.1016/j.cnsns.2011.10.020 MR2877680 ZBL06056884Johnpillai, A.G., Khalique, C.M., Conservation laws of KdV equation with time dependent coefficients (2011) Communications in Nonlinear Science and Numerical Simulation, 16 (8), pp. 3081-3089. , 10.1016/j.cnsns.2010.10.031 MR2782999 ZBL1219.35236Gandarias, M.L., Bruzón, M.S., Conservation laws for a class of quasi self-adjoint third order equations (2012) Applied Mathematics and Computation, 219 (2), pp. 668-678. , 10.1016/j.amc.2012.06.059 MR2956996Torrisi, M., Tracinà, R., Quasi self-adjointness of a class of third order nonlinear dispersive equations (2013) Nonlinear Analysis. Real World Applications, 14 (3), pp. 1496-1502. , 10.1016/j.nonrwa.2012.10.013 MR3004516 ZBL1261.35131Freire, I.L., Santos Sampaio, J.C., On the nonlinear self-adjointness and local conservation laws for a class of evolution equations unifying many models (2014) Communications in Nonlinear Science and Numerical Simulation, 19 (2), pp. 350-360. , 10.1016/j.cnsns.2013.06.010 MR3142476Freire, I.L., Sampaio, J.C.S., Nonlinear self-adjointness of a generalized fifth-order KdV equation (2012) Journal of Physics A: Mathematical and Theoretical, 45 (3). , 032001 10.1088/1751-8113/45/3/032001 MR2871416 ZBL1234.35221Freire, I.L., New classes of nonlinearly self-adjoint evolution equations of third- and fifth-order (2013) Communications in Nonlinear Science and Numerical Simulation, 18 (3), pp. 493-499. , 10.1016/j.cnsns.2012.08.022 MR2990691 ZBL06244246Freire, I.L., Sampaio, J.C.S., A review on some results on local conservation laws for certain evolution equations (2013) TEMA. Tendências em Matemática Aplicada e Computacional, 14 (1), pp. 109-118. , 10.5540/tema.2013.014.01.0109 MR3064682Freire, I.L., Conservation laws for self-adjoint first-order evolution equation (2011) Journal of Nonlinear Mathematical Physics, 18 (2), pp. 279-290. , 10.1142/S1402925111001453 MR2812420 ZBL1219.35228Freire, I.L., New conservation laws for inviscid Burgers equation (2012) Computational & Applied Mathematics, 31 (3), pp. 559-567. , 10.1590/S1807-03022012000300007 MR3009189 ZBL1263.76057Abdulwahhab, M.A., Conservation laws of inviscid Burgers equation with nonlinear damping (2014) Communications in Nonlinear Science and Numerical Simulation, 19 (6), pp. 1729-1741. , 10.1016/j.cnsns.2013.10.011 MR3144755Ibragimov, N.H., Torrisi, M., Tracinà, R., Self-adjointness and conservation laws of a generalized Burgers equation (2011) Journal of Physics A: Mathematical and Theoretical, 44 (14). , 145201 10.1088/1751-8113/44/14/145201 MR2780416 ZBL1216.35115Bozhkov, Y., Dimas, S., Ibragimov, N.H., Conservation laws for a coupled variable-coefficient modified Korteweg-de Vries system in a two-layer fluid model (2013) Communications in Nonlinear Science and Numerical Simulation, 18 (5), pp. 1127-1135. , 10.1016/j.cnsns.2012.09.015 MR2998573 ZBL1261.35127Ibragimov, N.H., Torrisi, M., Tracinà, R., Quasi self-adjoint nonlinear wave equations (2010) Journal of Physics A: Mathematical and Theoretical, 43 (44). , 442001 10.1088/1751-8113/43/44/442001 MR2733811 ZBL1206.35174Wang, Y., Wei, L., Self-adjointness, symmetries, and conservation laws for a class of wave equations incorporating dissipation (2013) Abstract and Applied Analysis, 2013, p. 6. , 407908 MR3064344 ZBL1275.35016 10.1155/2013/407908Avdonina, E.D., Ibragimov, N.H., Conservation laws of anisotropic heat equations (2012) Archives of ALGA, 9, pp. 13-22Avdonina, E.D., Ibragimov, N.H., Conservation laws and exact solutions for nonlinear diffusion in anisotropic media (2013) Communications in Nonlinear Science and Numerical Simulation, 18 (10), pp. 2595-2603. , 10.1016/j.cnsns.2013.02.009 MR3055035Bozhkov, Y., Silva, K.A.A., Nonlinear self-adjointness of a 2D generalized second order evolution equation (2012) Nonlinear Analysis. Theory, Methods & Applications A, 75 (13), pp. 5069-5078. , 10.1016/j.na.2012.04.023 MR2927570 ZBL1246.35084Bozhkov, Y., Dimas, S., Group classification and conservation laws for a two-dimensional generalized Kuramoto-Sivashinsky equation (2013) Nonlinear Analysis. Theory, Methods & Applications A, 84, pp. 117-135. , 10.1016/j.na.2013.02.010 MR3034576 ZBL1278.76097Tracinà, R., On the nonlinear self-adjointness of the Zakharov-Kuznetsov equation (2014) Communications in Nonlinear Science and Numerical Simulation, 19 (2), pp. 377-382. , 10.1016/j.cnsns.2013.06.014 MR3142480Gazeau, J.-P., Winternitz, P., Symmetries of variable coefficient Korteweg-de Vries equations (1992) Journal of Mathematical Physics, 33 (12), pp. 4087-4102. , 10.1063/1.529807 MR1191768 ZBL0767.35077Güngör, F., Lahno, V.I., Zhdanov, R.Z., Symmetry classification of KdV-type nonlinear evolution equations (2004) Journal of Mathematical Physics, 45 (6), pp. 2280-2313. , 10.1063/1.1737811 MR2059693 ZBL1094.35007Freire, I.L., Sampaio, J.C.S., Conservation Laws for A Burgers-KdV Family of Equations, , in preparation, 2014Bluman, G.W., Anco, S.C., (2002) Symmetry and Integration Methods for Differential Equations, pp. x+419. , New York, NY, USA Springer MR1914342Bluman, G.W., Kumei, S., (1989) Symmetries and Differential Equations, 81, pp. xiv+412. , New York, NY, USA Springer Applied Mathematical Sciences MR1006433Ibragimov, N.H., (1985) Transformation Groups Applied to Mathematical Physics, pp. xv+394. , Dordrecht, The Netherlands D. Reidel Publishing Mathematics and its Applications (Soviet Series) Translated from the Russian MR785566Olver, P.J., (1986) Applications of Lie Groups to Differential Equations, pp. xxvi+497. , New York, NY, USA Springer 10.1007/978-1-4684-0274-2 MR836734Olver, P.J., Conservation laws and null divergences (1983) Mathematical Proceedings of the Cambridge Philosophical Society, 94 (3), pp. 529-540. , 10.1017/S030500410000092X MR720804 ZBL0556.35021Olver, P.J., Conservation laws of free boundary problems and the classification of conservation laws for water waves (1983) Transactions of the American Mathematical Society, 277 (1), pp. 353-380. , 10.2307/1999361 MR690057 ZBL0519.76015Popovych, R.O., Samoilenko, A.M., Local conservation laws of second-order evolution equations (2008) Journal of Physics A: Mathematical and Theoretical, 41 (36). , 362002 10.1088/1751-8113/41/36/362002 MR2447855 ZBL1146.37039Popovych, R.O., Sergyeyev, A., Conservation laws and normal forms of evolution equations (2010) Physics Letters A, 374 (22), pp. 2210-2217. , 10.1016/j.physleta.2010.03.033 MR2629731 ZBL1237.35142Vinogradov, A.M., Local symmetries and conservation laws (1984) Acta Applicandae Mathematicae, 2 (1), pp. 21-78. , 10.1007/BF01405491 MR736872 ZBL0547.58043Ibragimov, N.H., Quasi-self-adjoint differential equations (2007) Archives of ALGA, 4, pp. 55-60Zhang, Z.-Y., Approximate nonlinear self-adjointness and approximate conservation laws (2013) Journal of Physics A: Mathematical and Theoretical, 46 (15). , 155203 10.1088/1751-8113/46/15/155203 MR3043882 ZBL1267.81155Alexandrova, A.A., Ibragimov, N.H., Lukashchuk, V.O., Group classification and conservation laws of nonlinear filtration equation with a small parameter (2014) Communications in Nonlinear Science and Numerical Simulation, 19 (2), pp. 364-370. , 10.1016/j.cnsns.2013.06.012 MR3142478Lukashchulk, S.Yu., Constructing of Conservation Laws for Fractional Differential Equations, , 16a Mogran Conference, UFA, Russia, 2013Da Silva, P.L., Freire, I.L., Strict Self-adjointness and Shallow Water Models, , http://arxiv.org/abs/1312.399
ALFABETIZAÇÃO – UMA QUESTÃO DE EMERGÊNCIA NO BRASIL
No full text<p>Durante décadas, o Brasil vem desenvolvendo programas de combate ao analfabetismo. Uma onda modernista direciona ações de políticas públicas para a perseguição de resultados, como por exemplo, as taxas de aprovação como resposta ao IDH –Índice de Desenvolvimento Humano acima de 1,4. Daí, passarmos de construtores de um processo estrutural que têm raízes na permanência etária na escola, no fabrico de competências e no desestímulo à oferta precoce de mão-de-obra infanto-juvenil – população de 7 a 14 anos à respondentes de questionários das Nações Unidas em busca de acordos e consórcios para salvar o patrimônio público. Desta feita é possível dizer que certas atribuições da Alfabetização respondem ao quesito de bem-estar econômico pois lê-se ascensão escolar à condição melhor de vida. Os problemas econômicos do tipo: emprego, subemprego, entrada precoce no mercado de trabalho, deixam de ser protagonistas e compõem apenas o pano de fundo do cenário nacional. O analfabetismo funcional, definido como a incapacidade de adequação da pessoa às demandas das empresas em relação a precisão e a comunicação de siglas, perverte o próprio conceito de racionalidade de fatores ao qual as empresas estão submetidas. No curto prazo, as organizações são obrigadas a assumir o encargo de suprir as deficiências do empregado, em termos de analfabetismo funcional. O médio e longo prazo, entretanto, é preciso conhecer melhor os fatores que conduzem ao analfabetismo funcional e seus mecanismos de ação. Desde Paulo Freire, procura-se desfocar essa mensagem e passamos a ampliar o problema para além do analfabetismo absoluto e passarmos a observar a “alfabetização” em várias ópticas. Trata-se, agora, de entender a educação como um movimento radical que suplanta as condições de escrita mínima e visualização das quatro operações. A tônica atual é discutir o indivíduo como cidadão e gestor de suas atitudes.</p>
<p><strong>PALAVRAS-CHAVES:</strong> Analfabetismo, Empresa, Movimento.</p>
L’ambivalence d’un chef-d’œuvre : « Une lettre perdue » de I.L. Caragiale
No full textThe Ambivalence of a Masterpiece: A Lost Letter by I.L. Caragiale. A Lost Letter by I.L. Caragiale, a landmark in the history of Romanian theatre, has enjoyed throughout time numerous critical interpretations, without losing its dramatic potential. We intend to study the comic mechanism through a variety of dramatic strategies: the diversity of the scenes, the circular actions, the baffling succession of situations, starting with the loss of the compromising love letter. This play features the actors of a political electoral farce overflowing with a vaudeville-like comic, that in conjunction with parody, is targeting the ideological clichés and verbal stereotypes. A logically inconceivable humour that borders the absurd. The purpose of this kind of humour, unleashed during comical situations, is not hiding the immorality, the demagogy of a socio-political reality put under the critical scope of the author. The joyful, bitter or cruel laughter are being in a continuous competition here. The humour is thus the element that subverts the values of political commitment
L’ambivalence d’un chef-d’oeuvre : Une lettre perdue de I.L. Caragiale
No full textA Lost Letter by I.L. Caragiale, a landmark in the history of Romanian theatre, has enjoyed throughout time numerous critical interpretations, without losingits dramatic potential. We intend to study the comic mechanism through a variety of dramatic strategies: the diversity of the scenes, the circular actions,the baffling succession of situations, starting with the loss of the compromising love letter. This play features the actors of a political electoral farce overflowing with a vaudeville-like comic, that in conjunction with parody, is targeting the ideological clichés and verbal stereotypes. A logically inconceivable humour that borders the absurd. The purpose of this kind of humour, unleashed during comical situations, is not hiding the immorality, the demagogy of a socio-political reality put under the critical scope of the author. The joyful, bitter or cruel laughter are being in a continuous competition here. The humour is thus the element that subverts the values of political commitment.A Lost Letter by I.L. Caragiale, a landmark in the history of Romanian theatre, has enjoyed throughout time numerous critical interpretations, without losingits dramatic potential. We intend to study the comic mechanism through a variety of dramatic strategies: the diversity of the scenes, the circular actions,the baffling succession of situations, starting with the loss of the compromising love letter. This play features the actors of a political electoral farce overflowing with a vaudeville-like comic, that in conjunction with parody, is targeting the ideological clichés and verbal stereotypes. A logically inconceivable humour that borders the absurd. The purpose of this kind of humour, unleashed during comical situations, is not hiding the immorality, the demagogy of a socio-political reality put under the critical scope of the author. The joyful, bitter or cruel laughter are being in a continuous competition here. The humour is thus the element that subverts the values of political commitment
Group Analysis Of The Novikov Equation
No full textWe find the Lie point symmetries of the Novikov equation and demonstrate that it is strictly self-adjoint. Using the self-adjointness and the recent technique for constructing conserved vectors associated with symmetries of differential equations, we find the conservation law corresponding to the dilation symmetry and show that other symmetries do not provide nontrivial conservation laws. Then we investigate the invariant solutions. © 2013 SBMAC - Sociedade Brasileira de Matemática Aplicada e Computacional.331193202Bluman, G., Connections between symmetries and conservation laws (2005) SIGMA, 1, p. 16. , (paper 011)Bluman, G., Cheviakov, A.F., Anco, S.C., Applications of symmetry methods to partial differential equations (2010) Appl Math Sci, 168, p. 398Bozhkov, Y., Silva, K.A.A., Nonlinear self-adjointness of a 2D generalized second order evolution equation (2012) Nonlinear Anal Ser A Theory Appl, 75, pp. 5069-5078Camassa, R., Holm, D.D., An integrable shallow water equation with peaked solitons (1993) Phys Rev Lett, 71, pp. 1661-1664Degasperis, A., Holm, D.D., Hone, A.N.W., A new integrable equation with peakon solutions (2002) Theor Math Phys, 133, pp. 1461-1472Freire, I.L., Conservation laws for self-adjoint first order evolution equation (2012) J Nonlinear Math Phys, 18, pp. 279-290Freire, I.L., New conservation laws for inviscid Burgers equation (2012) Comput Appl Math, 31, pp. 559-567Freire, I.L., Nonlinear self-adjointness of a generalised fifth-order KdV equation (2012) J Phys A Math Theor, 45. , (art no 032001)Freire, I.L., New classes of nonlinearly self-adjoint evolution equations of third- and fifth-order (2013) Commun Nonlinear Sci Num Simulat, 18, pp. 493-499Gandarias, M.L., Bruzon, M.S., Some conservation laws for a forced KdV equation (2012) Nonlinear Anal RWA, 13, pp. 2692-2700Himonas, A.A., Holliman, C., The Cauchy problem for the Novikov equation (2012) Nonlinearity, 25, pp. 449-479Hone, A.N.W., Wang, J.P., Integrable peakon equations with cubic nonlinearity (2008) J Phys A Math Theor, 41, p. 10. , 372002Hone, A.N.W., Lundmark, H., Szmigielski, J., Explicit multipeakon solutions of Novikov's cubically nonlinear integrable Camassa-Holm type equation (2009) Dyn Partial Differ Equ, 6, pp. 253-289Ibragimov, N.H., (1985) Transformation Groups Applied to Mathematical Physics, Translated from the Russian Mathematics and Its Applications (Soviet Series), D, , Dordrecht: Reidel Publishing CoIbragimov, N.H., A new conservation theorem (2007) J Math Anal Appl, 333, pp. 311-328Ibragimov, N.H., Khamitova, R.S., Valenti, A., Self-adjointness of a generalized Camassa-Holm equation (2011) Appl Math Comp, 218, pp. 2579-2583Ibragimov, N.H., Nonlinear self-adjointness and conservation laws (2011) J Phys A Math Theor, 44, p. 8. , 432002Ibragimov, N.H., Nonlinear self-adjointness in constructing conservation laws (2011) Arch ALGA, 7-8, pp. 1-90. , (see also arXiv: 1109. 1728v1[math-ph], 2011, pp 1-104)Jiang, Z., Ni, L., Blow-up phenomenon for the integrable Novikov equation (2012) J Math Anal Appl, 385, pp. 551-558Ni, L., Zhou, Y., Well-posedness and persistence properties for the Novikov equation (2011) J Differ Equ, 250, pp. 3002-3021Novikov, V.S., Generalizations of the Camassa-Holm equation (2009) J Phys A Math Theor, 42, p. 14. , 342002Olver, P.J., (1986) Applications of Lie Groups to Differential Equations, , New York: SpringerTorrisi, M., Tracinà, R., Quasi self-adjointness of a class of third order nonlinear dispersive equations (2013) Nonlinear Anal RWA, 14, pp. 1496-1502Yan, W., Li, Y., Zhang, Y., Global existence and blow-up phenomena for the weakly dissipative Novikov equation (2012) Nonlinear Anal Ser A Theory Appl, 75, pp. 2464-2473. , doi:10.1016/j.na.2011.10.044Wu, X., Yin, Z., Global weak solutions for the Novikov equation (2011) J Phys A Math Theor, 44, p. 17. , 05520
Pendidikan berbasis realita sosial : Paulo Freire dan YB. Mangunwijaya
No full textxvii, 139 p. : i.l; 21 cm
100 de ani (100 Years) by I.L. Caragiale: Recycling the Image of the Nation
No full textoai:ojs2.dramatica.ro:article/5On February 1, 1899, the National Theatre of Bucharest hosted the premiere of the play 100 de ani. Revistă istorică națională a secolului XIX, în 10 ilustrațiuni [100 Years. National Historical Revue of the 19th Century, in 10 Illustrations], arranged by I.L. Caragiale. Caragiale's controversial work is a montage of verses, prose and short plays written by several Romanian authors from the past (in other words, the play consists of old literary or dramatic works, appropriated, copied and pasted to fit into a new scenario). As a matter of fact, Caragiale wrote only the stage directions and a few lines and connecting scenes. But the overall, dramaturgical-directorial vision of the script belongs to him. Considering the way Caragiale treats the works of his literary colleagues in 100 Years, one could say that, in this particular case, he does not behave as a writer, but as a true author-director (or “auteur”). The ten “illustrations” arranged by him consist of a series of more or less allegorical or symbolic representations of the century about to end, with its emblematic moments, culminating in an “apotheosis” celebrating King Carol I. In my paper, I will try to argue that Caragiale's “revue” is more than a minor piece of homage art: it is an exercise of historical re-evaluation underpinned by a philosophy of history. I will also analyse the way the author recycles the image of Romania, departing from the traditional theatrical (allegorical) representations of the nation
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