Fredholm Operators, Essential Spectra and Application to Transport Equations
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Abstract
In this paper the essential spectra of closed, densely defined linear operators is characterized on a Banach spaces under perturbations of n-strictly power compact operators. Further we apply the obtained results to investigate the essential spectra of one-dimensional transport equation with general boundary conditions and the essential spectra of singular neutron transport equations in bounded geometries.
Key words
transport equation Fredholm operators essential spectraMathematics Subject Classifications (1991)
Primary 47A55, 47D03, 47N20Preview
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References
- 1.Dautray, R. and Lions, J. L.: Analyse Mathématique et Calcul Numérique, Masson, Paris, 9, 1988.Google Scholar
- 2.Diestel, J.: A survey of results related to Dunford–Pettis property, Contemporary Math. 2, Amer. Math. Soc. of Conf. on Integration, Topology and Geometry in Linear Spaces, (1980), 15–60.Google Scholar
- 3.Dunford, N. and Pettis.: Linear operations on summable functions, Trans. Amer. Math. Soc. 47 (1940) 323–392.MATHCrossRefMathSciNetGoogle Scholar
- 4.Dunford, N. and Schwartz, J. T.: Linears Operators, Interscience, New York, Part 1, 1958.Google Scholar
- 5.Gohberg, I. and Krein, I. M. G.: Fundamental theorems on deficiency numbers, root numbers and indices of linear operators, Amer. Math. Soc. Transl. Ser. 2 13 (1960), 185–264.MathSciNetGoogle Scholar
- 6.Gohberg, I., Markus, A. and Feldman, I. A.: Normally solvable operators and ideals associated with them, Amer. Math. Soc. Transl. Ser. 2 61 (1967), 63–84.Google Scholar
- 7.Goldberg, S.: Unbounded Linear Operators, McGraw-Hill, New York, 1966.MATHGoogle Scholar
- 8.Gramsch, B. and Lay, D.: Spectral mapping theorems for essential spectra, Math. Ann. 192 (1971), 17–32.CrossRefMATHMathSciNetGoogle Scholar
- 9.Grothendieck, A.: Sur les applications linéaires faiblement compactes d’espaces du type C(K), Canad. J. Math. 5 (1953), 129–173.MATHMathSciNetGoogle Scholar
- 10.Gustafson, K. and Weidmann, J.: On the essential spectrum, J. Math. Anal. Appl. 6(25) (1969), 121–127.CrossRefMATHMathSciNetGoogle Scholar
- 11.Hislop, P. D. and Segal, I. M.: Introduction to Spectral Theory with Applications to Shorodinger Operators, Springer, Berlin Heidelberg New York, 1996.Google Scholar
- 12.Jeribi, A.: Quelques remarques sur les opérateurs de Frédholm et application à l'équation de transport, C. R. Acad. Sci., Sci. Terre, 325 Série I (1997), 43–48.MATHMathSciNetGoogle Scholar
- 13.Jeribi, A.: Quelques remarques sur le spectre de Weyl et applications, C. R. Acad. Sci., Sci. Terre 327, Série I (1998) 485–490.MATHMathSciNetGoogle Scholar
- 14.Jeribi, A.: Une nouvelle caractérisation du spectre essentiel et application, C. R. Acad. Sci., Sci. Terre, 331, Série I (2000), 525–530.MATHMathSciNetGoogle Scholar
- 15.Jeribi, A.: A characterization of the essential spectrum and applications, Boll. dell. Unio. Mate. Itali., (8) 5-B, (2002), 805–825.Google Scholar
- 16.Jeribi, A.: A characterization of the Schechter essential spectrum on Banach spaces and applications, J. Math. Anal. Appl. 271 (2002), 343–358.CrossRefMATHMathSciNetGoogle Scholar
- 17.Jeribi, A.: Some remarks on the Schechter essential spectrum and applications to transport equations, J. Math. Anal. Appl. 275 (2002), 222–237.CrossRefMATHMathSciNetGoogle Scholar
- 18.Jeribi, A. and Latrach, K.: Quelques remarques sur le spectre essentiel et application à l'équation de transport, C. R. Acad. Sci., Sci. Terre 323 Série I (1996), 469–474.MATHMathSciNetGoogle Scholar
- 19.Kaashoek, M. A. and Lay, D. C.: Ascent, descent, and commuting perturbations, Trans. Amer. Math. Soc. 169 (1972), 35–47.MATHCrossRefMathSciNetGoogle Scholar
- 20.Kaper, H. G., Lekkerkerker, C.G. and Hejtmanek, J.: Spectral Methods in Linear Transport Theory, Birkhauser, Basel, 1982.MATHGoogle Scholar
- 21.Kato, T.: Perturbation theory for nullity, deficiency and other quantities of linear operators, J. Anal. Math. 6 (1958), 261–322.MATHCrossRefGoogle Scholar
- 22.Latrach, K.: Some remarks on the essential spectrum of transport operators with abstract boundary conditions. J. Math. Phys. 35 11 (1994), 6199–6212.CrossRefMATHMathSciNetGoogle Scholar
- 23.Latrach, K.: Essential spectra on spaces with the Dunford–Pettis property, J. Math. Anal. Appl. 233 (1999), 607–622.CrossRefMATHMathSciNetGoogle Scholar
- 24.Latrach, K.: Compactness properties for linear transport operator with abstract boundary conditions in slab geometry, Transp. Theory Stat. Phys. 22(1) (1993) 39–65.MATHCrossRefMathSciNetGoogle Scholar
- 25.Latrach, K. and Dehici, A.: Fredholm, semi-Fredholm perturbations, and essential spectra, J. Math. Anal. Appl. 259 (2001), 277–301.CrossRefMATHMathSciNetGoogle Scholar
- 26.Latrach, K. and Jeribi, A.: On the essential spectrum of transport operators on L 1-spaces, J. Math. Phys. 37(12) (1996), 6486–6494.CrossRefMATHMathSciNetGoogle Scholar
- 27.Latrach K. and Jeribi A.: Some results on Fredholm operators, essential spectra, and application, J. Math. Anal. Appl. 225 (1998), 461–485.CrossRefMATHMathSciNetGoogle Scholar
- 28.Latrach, K. and Paoli, J.M.: Relatively compact-like perturbations, essential spectra and application, Preprint, (2001).Google Scholar
- 29.Lindenstrauss J. and Tzafriri L.: Classical Banach Spaces I, Springer, Berlin Heidelberg New York, 1977.MATHGoogle Scholar
- 30.Lods, B.: On singular Neutron transport equations. Preprint (2000).Google Scholar
- 31.Milman V. D.: Some properties of strictly singular operators, Funct. Anal. Appl. 3 (1969), 77–78.CrossRefGoogle Scholar
- 32.Mokhtar-Kharroubi, M.: Mathematical topics in neutron transport theory. New Aspects, Adv. Math. Appl. Sci. 46, World Scientific (1997).Google Scholar
- 33.Montagnini, B. and Demuru, M. L.: Complete continuity of the free gas scattering operator in neutron thermalization theory, J. Math. Anal. Appl. 12 (1965), 49–57.CrossRefMATHMathSciNetGoogle Scholar
- 34.Nussbaum, R. D.: Spectral mapping theorems and perturbation theorem for Browder's essential spectrum, Trans. Amer. Math. Soc. 150 (1970), 445–455.MATHCrossRefMathSciNetGoogle Scholar
- 35.Pelczynski, A.: Strictly singular and cosingular operators, Bull. Acad. Pol. Sci. 13 (1965), 31–41.MathSciNetGoogle Scholar
- 36.Reed, M. and Simon, B.: Methods of Modern Mathematical Physics. IV. Analysis of Operators, Academic, New York, 1978.MATHGoogle Scholar
- 37.Schechter, M.: Invariance of essential spectrum, Bull. Amer. Math. Soc. 71 (1971), 365–367.CrossRefMathSciNetGoogle Scholar
- 38.Schechter, M.: Principles of Functional Analysis, Academic, 1971.Google Scholar
- 39.Schechter, M.: Spectra of Partial Differential Operators, North-Holland, Amsterdam, 1971.MATHGoogle Scholar
- 40.Suhadolc, A.: Linearized Boltzmann equation in L 1 space, J. Math. Anal. Appl. 35 (1971), 1–13.CrossRefMATHMathSciNetGoogle Scholar
- 41.Voigt, J.: On substochastic C 0-semigroups and their generators, Transp. Theory Stat. Phys. 16(4–6) (1987), 453–466.CrossRefMathSciNetGoogle Scholar
- 42.Weis, L.: On perturbation of Fredholm operators in L p-spaces, Proc. Amer. Math. Soc. 67 (1977), 87–92.CrossRefMathSciNetGoogle Scholar
- 43.Wolf, F.: On the essential spectrum of partial differential boundary problems, Comm. Pure Appl. Math. 12 (1959), 211–228.MATHCrossRefGoogle Scholar
- 44.Wolf, F.: On the invariance of the essential spectrum under a change of the boundary conditions of partial differential operators, Indag. Math. 21 (1959), 142–147.Google Scholar
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