# American Institute of Mathematical Sciences

December  2011, 31(4): 1151-1195. doi: 10.3934/dcds.2011.31.1151

## An existence and uniqueness result for flux limited diffusion equations

 1 DTIC, Universitat Pompeu Fabra, C/Roc Boronat 138, 08018 Barcelona, Spain

Received  November 2009 Revised  January 2010 Published  September 2011

We prove existence and uniqueness of entropy solutions of the Cauchy problem for the quasilinear parabolic equation $u_t$ $= div$ $a$$(u,Du) with initial condition u_0 \in BV(\mathbb{R}^N), u_0$$\geq 0$, where $a(z,\xi)$ = $\nabla_\xi f(z,\xi)$ and $f$ is a convex function of $\xi$ with linear growth as $\Vert \xi\Vert \to\infty$, satisfying other additional assumptions that cover the case of the so-called relativistic heat equation and other flux limited diffusion equations used in the theory of radiation hydrodynamics.
Citation: Vicent Caselles. An existence and uniqueness result for flux limited diffusion equations. Discrete & Continuous Dynamical Systems - A, 2011, 31 (4) : 1151-1195. doi: 10.3934/dcds.2011.31.1151
##### References:
 [1] L. Ambrosio, N. Fusco and D. Pallara, "Functions of Bounded Variation and Free Discontinuity Problems,", Oxford Mathematical Monographs, (2000). Google Scholar [2] F. Andreu, V. Caselles and J. M. Mazón, A strongly degenerate quasilinear equations: The elliptic case,, Annali della Scuola Norm. Sup. di Pisa. Cl. Sci. (5), 3 (2004), 555. Google Scholar [3] F. Andreu, V. Caselles and J. M. Mazón, A strongly degenerate quasilinear equation: The parabolic case,, Arch. Rat. Mech. Anal., 176 (2005), 415. doi: 10.1007/s00205-005-0358-5. Google Scholar [4] F. Andreu, V. Caselles and J. M. Mazón, A strongly degenerate quasilinear elliptic equation,, Nonlinear Analysis, 61 (2005), 637. doi: 10.1016/j.na.2004.11.020. Google Scholar [5] F. Andreu, V. Caselles and J. M. Mazón, The Cauchy problem for a strongly degenerate quasilinear equation,, Journal European Math. Society (JEMS), 7 (2005), 361. doi: 10.4171/JEMS/32. Google Scholar [6] F. Andreu, V. Caselles, J. M. Mazón and S. Moll, Finite propagation speed for limited flux diffusion equations,, Arch. Ration. Mech. Anal., 182 (2006), 269. doi: 10.1007/s00205-006-0428-3. Google Scholar [7] F. Andreu, V. Caselles and J. M. Mazón, Some regularity results on the 'relativistic' heat equation,, J. Diff. Equat., 245 (2008), 3639. doi: 10.1016/j.jde.2008.06.024. Google Scholar [8] F. Andreu, V. Caselles, J. M. Mazón and S. Moll, The Dirichlet problem associated to the relativistic heat equation,, Math. Ann., 347 (2010), 135. doi: 10.1007/s00208-009-0428-3. Google Scholar [9] G. Anzellotti, Pairings between measures and bounded functions and compensated compactness,, Ann. di Matematica Pura ed Appl. (4), 135 (1983), 293. Google Scholar [10] Ph. Bénilan, L. Boccardo, T. Gallouët, R. Gariepy, M. Pierre and J. L. Vázquez, An $L^1$-theory of existence and uniqueness of solutions of nonlinear elliptic equations,, Ann. Scuola Normale Superiore di Pisa Cl. Sci. (4), 22 (1995), 241. Google Scholar [11] Ph. Bénilan and M. G. Crandall, Completely accretive operators,, in, 135 (1991), 41. Google Scholar [12] Ph. Bénilan, M. G. Crandall and A. Pazy, "Evolution Equations Governed by Accretive Operators,", in preparation., (). Google Scholar [13] M. Bertsch and R. Dal Passo, Hyperbolic phenomena in a strongly degenerate parabolic equation,, Arch Rational Mech. Anal., 117 (1992), 349. doi: 10.1007/BF00376188. Google Scholar [14] M. Bertsch and R. Dal Passo, A parabolic equation with a mean-curvature type operator,, in, 7 (1992), 89. Google Scholar [15] Ph. Blanc, On the regularity of the solutions of some degenerate parabolic equations,, Comm. in Partial Diff. Equat., 18 (1993), 821. Google Scholar [16] Ph. Blanc, "Sur une Classe d'Equations Paraboliques Degeneréesa une Dimension d'Espace Possedant des Solutions Discontinues,", Ph.D. Thesis, (1989). Google Scholar [17] Y. Brenier, Extended Monge-Kantorovich theory,, in, 1813 (2001), 91. Google Scholar [18] F. Browder, Pseudo-monotone operators and nonlinear elliptic boundary value problems on unbounded domains,, Proc. Nat. Acad. Sci. USA, 74 (1977), 2659. doi: 10.1073/pnas.74.7.2659. Google Scholar [19] J. Carrillo and P. Wittbold, Uniqueness of renormalized solutions of degenerate elliptic-parabolic problems,, J. Diff. Equat., 156 (1999), 93. doi: 10.1006/jdeq.1998.3597. Google Scholar [20] V. Caselles, On the entropy conditions for some flux limited diffusion equations,, J. Diff. Equat., 250 (2011), 3311. doi: 10.1016/j.jde.2011.01.027. Google Scholar [21] G.-Q. Chen and H. Frid, Divergence-measure fields and hyperbolic conservation laws,, Arch. Rational Mech. Anal., 147 (1999), 89. doi: 10.1007/s002050050146. Google Scholar [22] M. G. Crandall, Nonlinear semigroups and evolution equations governed by accretive operators,, in, 45 (1986), 305. Google Scholar [23] M. G. Crandall and T. M. Liggett, Generation of semi-groups of nonlinear transformations on general Banach spaces,, Amer. J. Math., 93 (1971), 265. doi: 10.2307/2373376. Google Scholar [24] G. Dal Maso, Integral representation on $BV(\Omega)$ of $\Gamma$-limits of variational integrals,, Manuscripta Math., 30 (): 387. doi: 10.1007/BF01301259. Google Scholar [25] R. Dal Passo, Uniqueness of the entropy solution of a strongly degenerate parabolic equation,, Comm. in Partial Diff. Equat., 18 (1993), 265. Google Scholar [26] A. Chertock, A. Kurganov and P. Rosenau, Formation of discontinuities in flux-saturated degenerate parabolic equations,, Nonlinearity, 16 (2003), 1875. doi: 10.1088/0951-7715/16/6/301. Google Scholar [27] V. De Cicco, N. Fusco and A. Verde, On $L^1$-lower semicontinuity in $BV$,, J. Convex Anal., 12 (2005), 173. Google Scholar [28] E. De Giorgi and L. Ambrosio, Un nuovo tipo di funzionale del calcolo delle variazioni,, (Italian) [New functionals in the calculus of variations], 82 (1988), 199. Google Scholar [29] J. J. Duderstadt and G. A. Moses, "Inertial Confinement Fusion,", John Wiley and Sons, (1982). Google Scholar [30] L. C. Evans and R. F. Gariepy, "Measure Theory and Fine Properties of Functions,", Studies in Advanced Math., (1992). Google Scholar [31] S. N. Kruzhkov, First order quasilinear equations in several independent variables,, Math. USSR-Sb., 10 (1970), 217. doi: 10.1070/SM1970v010n02ABEH002156. Google Scholar [32] R. Mc Cann and M. Puel, Construting a relativistic heat flow by transport time steps,, Ann. de Inst. Henri Poincaré Anal. Non Linéaire, 26 (2009), 2539. Google Scholar [33] D. Mihalas and B. Mihalas, "Foundations of Radiation Hydrodynamics,", Oxford University Press, (1984). Google Scholar [34] M. M. Rao and Z. D. Ren, "Theory of Orlicz Spaces,", Monographs and Textbooks in Pure and Applied Mathematics, 146 (1991). Google Scholar [35] P. Rosenau, Free energy functionals at the high gradient limit,, Phys. Review A, 41 (1990), 2227. doi: 10.1103/PhysRevA.41.2227. Google Scholar [36] P. Rosenau, Tempered diffusion: A transport process with propagating front and inertial delay,, Phys. Review A, 46 (1992), 7371. doi: 10.1103/PhysRevA.46.R7371. Google Scholar [37] W. P. Ziemer, "Weakly Differentiable Functions. Sobolev Spaces and Functions of Bounded Variation,", GTM, 120 (1989). Google Scholar

show all references

##### References:
 [1] L. Ambrosio, N. Fusco and D. Pallara, "Functions of Bounded Variation and Free Discontinuity Problems,", Oxford Mathematical Monographs, (2000). Google Scholar [2] F. Andreu, V. Caselles and J. M. Mazón, A strongly degenerate quasilinear equations: The elliptic case,, Annali della Scuola Norm. Sup. di Pisa. Cl. Sci. (5), 3 (2004), 555. Google Scholar [3] F. Andreu, V. Caselles and J. M. Mazón, A strongly degenerate quasilinear equation: The parabolic case,, Arch. Rat. Mech. Anal., 176 (2005), 415. doi: 10.1007/s00205-005-0358-5. Google Scholar [4] F. Andreu, V. Caselles and J. M. Mazón, A strongly degenerate quasilinear elliptic equation,, Nonlinear Analysis, 61 (2005), 637. doi: 10.1016/j.na.2004.11.020. Google Scholar [5] F. Andreu, V. Caselles and J. M. Mazón, The Cauchy problem for a strongly degenerate quasilinear equation,, Journal European Math. Society (JEMS), 7 (2005), 361. doi: 10.4171/JEMS/32. Google Scholar [6] F. Andreu, V. Caselles, J. M. Mazón and S. Moll, Finite propagation speed for limited flux diffusion equations,, Arch. Ration. Mech. Anal., 182 (2006), 269. doi: 10.1007/s00205-006-0428-3. Google Scholar [7] F. Andreu, V. Caselles and J. M. Mazón, Some regularity results on the 'relativistic' heat equation,, J. Diff. Equat., 245 (2008), 3639. doi: 10.1016/j.jde.2008.06.024. Google Scholar [8] F. Andreu, V. Caselles, J. M. Mazón and S. Moll, The Dirichlet problem associated to the relativistic heat equation,, Math. Ann., 347 (2010), 135. doi: 10.1007/s00208-009-0428-3. Google Scholar [9] G. Anzellotti, Pairings between measures and bounded functions and compensated compactness,, Ann. di Matematica Pura ed Appl. (4), 135 (1983), 293. Google Scholar [10] Ph. Bénilan, L. Boccardo, T. Gallouët, R. Gariepy, M. Pierre and J. L. Vázquez, An $L^1$-theory of existence and uniqueness of solutions of nonlinear elliptic equations,, Ann. Scuola Normale Superiore di Pisa Cl. Sci. (4), 22 (1995), 241. Google Scholar [11] Ph. Bénilan and M. G. Crandall, Completely accretive operators,, in, 135 (1991), 41. Google Scholar [12] Ph. Bénilan, M. G. Crandall and A. Pazy, "Evolution Equations Governed by Accretive Operators,", in preparation., (). Google Scholar [13] M. Bertsch and R. Dal Passo, Hyperbolic phenomena in a strongly degenerate parabolic equation,, Arch Rational Mech. Anal., 117 (1992), 349. doi: 10.1007/BF00376188. Google Scholar [14] M. Bertsch and R. Dal Passo, A parabolic equation with a mean-curvature type operator,, in, 7 (1992), 89. Google Scholar [15] Ph. Blanc, On the regularity of the solutions of some degenerate parabolic equations,, Comm. in Partial Diff. Equat., 18 (1993), 821. Google Scholar [16] Ph. Blanc, "Sur une Classe d'Equations Paraboliques Degeneréesa une Dimension d'Espace Possedant des Solutions Discontinues,", Ph.D. Thesis, (1989). Google Scholar [17] Y. Brenier, Extended Monge-Kantorovich theory,, in, 1813 (2001), 91. Google Scholar [18] F. Browder, Pseudo-monotone operators and nonlinear elliptic boundary value problems on unbounded domains,, Proc. Nat. Acad. Sci. USA, 74 (1977), 2659. doi: 10.1073/pnas.74.7.2659. Google Scholar [19] J. Carrillo and P. Wittbold, Uniqueness of renormalized solutions of degenerate elliptic-parabolic problems,, J. Diff. Equat., 156 (1999), 93. doi: 10.1006/jdeq.1998.3597. Google Scholar [20] V. Caselles, On the entropy conditions for some flux limited diffusion equations,, J. Diff. Equat., 250 (2011), 3311. doi: 10.1016/j.jde.2011.01.027. Google Scholar [21] G.-Q. Chen and H. Frid, Divergence-measure fields and hyperbolic conservation laws,, Arch. Rational Mech. Anal., 147 (1999), 89. doi: 10.1007/s002050050146. Google Scholar [22] M. G. Crandall, Nonlinear semigroups and evolution equations governed by accretive operators,, in, 45 (1986), 305. Google Scholar [23] M. G. Crandall and T. M. Liggett, Generation of semi-groups of nonlinear transformations on general Banach spaces,, Amer. J. Math., 93 (1971), 265. doi: 10.2307/2373376. Google Scholar [24] G. Dal Maso, Integral representation on $BV(\Omega)$ of $\Gamma$-limits of variational integrals,, Manuscripta Math., 30 (): 387. doi: 10.1007/BF01301259. Google Scholar [25] R. Dal Passo, Uniqueness of the entropy solution of a strongly degenerate parabolic equation,, Comm. in Partial Diff. Equat., 18 (1993), 265. Google Scholar [26] A. Chertock, A. Kurganov and P. Rosenau, Formation of discontinuities in flux-saturated degenerate parabolic equations,, Nonlinearity, 16 (2003), 1875. doi: 10.1088/0951-7715/16/6/301. Google Scholar [27] V. De Cicco, N. Fusco and A. Verde, On $L^1$-lower semicontinuity in $BV$,, J. Convex Anal., 12 (2005), 173. Google Scholar [28] E. De Giorgi and L. Ambrosio, Un nuovo tipo di funzionale del calcolo delle variazioni,, (Italian) [New functionals in the calculus of variations], 82 (1988), 199. Google Scholar [29] J. J. Duderstadt and G. A. Moses, "Inertial Confinement Fusion,", John Wiley and Sons, (1982). Google Scholar [30] L. C. Evans and R. F. Gariepy, "Measure Theory and Fine Properties of Functions,", Studies in Advanced Math., (1992). Google Scholar [31] S. N. Kruzhkov, First order quasilinear equations in several independent variables,, Math. USSR-Sb., 10 (1970), 217. doi: 10.1070/SM1970v010n02ABEH002156. Google Scholar [32] R. Mc Cann and M. Puel, Construting a relativistic heat flow by transport time steps,, Ann. de Inst. Henri Poincaré Anal. Non Linéaire, 26 (2009), 2539. Google Scholar [33] D. Mihalas and B. Mihalas, "Foundations of Radiation Hydrodynamics,", Oxford University Press, (1984). Google Scholar [34] M. M. Rao and Z. D. Ren, "Theory of Orlicz Spaces,", Monographs and Textbooks in Pure and Applied Mathematics, 146 (1991). Google Scholar [35] P. Rosenau, Free energy functionals at the high gradient limit,, Phys. Review A, 41 (1990), 2227. doi: 10.1103/PhysRevA.41.2227. Google Scholar [36] P. Rosenau, Tempered diffusion: A transport process with propagating front and inertial delay,, Phys. Review A, 46 (1992), 7371. doi: 10.1103/PhysRevA.46.R7371. Google Scholar [37] W. P. Ziemer, "Weakly Differentiable Functions. Sobolev Spaces and Functions of Bounded Variation,", GTM, 120 (1989). Google Scholar
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