Dr. Christoph Schmoeger: Publikationen/Publications

Dissertation:

(1) Die analytischen Punktspektren in der Atkinsontheorie in semiprimen Banachalgebren

Christoph Schmoeger

Dissertation, Karlsruhe 1989

Veröffentlichte Arbeiten/published articles:

(2) Ein Spektralabbildungssatz

Christoph Schmoeger

Arch. Math. 55 (1990) 484-489

(3) Atkinson theory and holomorphic functions in Banach algebras

Christoph Schmoeger

Proc. R. Ir. Acad. 91A (1991) 113-127

(4) The punctured neighbourhood theorem in Banach algebras

Christoph Schmoeger

Proc. R. Ir. Acad. 91A (1991) 205-218

(5) On isolated points of the spectrum of a bounded linear operator

Christoph Schmoeger

Proc. Amer. Math. Soc. 117 (1993) 715-719

(6) Relatively regular operators and a spectral mapping theorem

Christoph Schmoeger

J. Math. Anal. Appl. 175 (1993) 315-320

(7) Pseudo-inverses, holomorphic functions and Atkinson theory in Banach algebras

Christoph Schmoeger

Math. Scand. 72 (1993) 303-309

(8) Ascent, descent and the Atkinson region in Banach algebras I

Christoph Schmoeger

Ricerche di Mathematica XLII (1993) 123-147

(9) Ascent, descent and the Atkinson region in Banach algebras II

Christoph Schmoeger

Ricerche di Mathematica XLII (1993) 249-264

(10) On operators of Saphar type

Christoph Schmoeger

Port. Math. 51 (1994) 617-628

(11) On operators T such that f(T) is hypercyclic

Gerd Herzog, Christoph Schmoeger

Studia Math. 108(1994) 209-216

(12) Perturbation properties of some classes of operators

Christoph Schmoeger

Rend.di Math. 14 (1994) 533-541

(13) On a generalized punctured neighbourhood theorem in L(X)

Christoph Schmoeger

Proc. Amer. Math. Soc. 123 (1995) 1237-1240.

(14) The stability radius of an operator of Saphar type

Christoph Schmoeger

Studia Math. 113 (1995) 169-175

(15) Semi-Fredholm operators and local spectral theory

Christoph Schmoeger

Demonstratio Math. XXVII (1995) 997-1004

(16) On decomposably regular operators

Christoph Schmoeger

Port. Math. 54 (1997) 41-50

(17) Über die Eindeutigkeit des Logarithmus eines unitären Operators

Christoph Schmoeger

Nieuw Archief voor Wiskunde 15 (1997) 57-61

(18) On the norm-closure of the class of hypercyclic operators

Christoph Schmoeger

Ann. Polonici Mathematici LXV. 2 (1997)157-161

(19) Shifts on Banach spaces

Christoph Schmoeger

Demonstratio Math. XXX (1997) 115-128

(20) The punctured neighbourhood theorem in Banach algebras, II

Christoph Schmoeger

Ricerche di Matematica XLVI (1997) 161-175

(21) The spectral mapping theorem for the essential approximate point spectrum

Christoph Schmoeger

Colloquium Mathematicum 74 (1997) 167-176

(22) On a class of generalized Fredholm operators I

Christoph Schmoeger

Demonstratio Math. XXX (1997) 829-842

(23) The punctured neighbourhood theorem in Banach algebras III

Christoph Schmoeger

Ricerche di Mathematica XLVII (1998) 213-230

(24) On a class of generalized Fredholm operators II

Christoph Schmoeger

Demonstratio Math. XXXI (1998) 705-722

(25) On operators T such that WeylŽs theorem holds for f(T)

Christoph Schmoeger

Extracta Mathematicae 13 (1998) 27-33

(26) On a class of generalized Fredholm operators III

Christoph Schmoeger

Demonstratio Math. XXXI (1998) 723-733

(27) On a class of generalized Fredholm operators IV

Christoph Schmoeger

Demonstratio Math. XXXII (1999) 581-594

(28) On a class of generalized Fredholm operators V

Christoph Schmoeger

Demonstratio Math. XXXII (1999) 595-604

(29) On a class of generalized Fredholm operators VI

Christoph Schmoeger

Demonstratio Math .XXXII (1999) 811-822

(30) Remarks on commuting exponentials in Banach algebras

Christoph Schmoeger

Proc. Amer. Math. Soc. 127, No.5, 1337-1338 (1999)

(31) Generalized Fredholm theory in semisimple algebras

Daniel Männle, Christoph Schmoeger

Rend. di Mat.19 (1999) 583 - 613

(32) On a class of generalized Fredholm operators VII

Christoph Schmoeger

Demonstratio Math. XXXIII (2000)123-130

(33) Remarks on commuting exponentials in Banach algebras, II

Christoph Schmoeger

Proc. Amer. Math. Soc. 128 (2000) 3405 – 3409

(34) Operator exponentials on Hilbert spaces

Christoph Schmoeger

Seminar LV, No.9, 12 pp. (2001)

(35) A note on logarithms of self–adjoint operators

Christoph Schmoeger

Seminar LV, No.10, 4 pp. (2001)

(36) Some remarks on generalized Fredholm operators

Christoph Schmoeger

Ricerche di Matematica, Vol. LI, No. 1 (2002) 1-10.

(37) On normal operator exponentials

Christoph Schmoeger

Proc. Amer. Math. Soc. 130, No. 3 (2002) 697 – 702

(38) On logarithms of linear operators on Hilbert spaces

Christoph Schmoeger

Demonstratio Math. XXXV (2002) 375 - 384

(39) On totally paranormal operators

Christoph Schmoeger

Bull. Austral. Math. Soc. 66 (2002) 425 – 441

(40) On the operator equation exp(A)=exp(B)

Christoph Schmoeger

Linear Algebra and its Appl. 359 (2003) 169 – 179

(41) On Fredholm properties of operator products

Christoph Schmoeger

Proc. R. Ir. Acad. 103 A (2003) 203 - 208

(42) A note on a Theorem of Raubenheimer and Rode

Gerd Herzog, Christoph Schmoeger

Proc. Amer. Math. Soc. 131 (2003) 3507 – 3509

(43) Spectral properties of generalized inverses

Christoph Schmoeger

Demonstratio Math. 37 (2004) 137 - 148

(44) On a Theorem of Vesentini

Gerd Herzog, Christoph Schmoeger

Studia Math. 162 (2004) 183 - 193

(45) A note on meromorphic operators

Christoph Schmoeger

Proc. Amer. Math. Soc. 133 (2005) 511 - 518

(46) Partial isometries on Banach spaces

Christoph Schmoeger

Seminar LV, No.20, 13 pp. (2005).

(47) Commutativity up to a factor

Christoph Schmoeger

Demonstratio Math. 38 (2005) 905 - 910

(48) On the operator equations ABA=A² and BAB=B²

Christoph Schmoeger

Publ. Inst. Math. (Beograd) 78 (92) (2005), 127 - 134

(49) Banach algebra homomorphisms via orthogonal projections

Gerd Herzog, Christoph Schmoeger

Demonstratio Math. 39 (2006) 137 - 148

(50) A note on commuting powers in Banach algebras

Christoph Schmoeger

Seminar LV, No.24, 4 pp. (2006)

(51) On a question of Mbekhta

Christoph Schmoeger

Extracta Math. 20(3) (2005) 281 - 290

(52) Drazin invertibility of products

Christoph Schmoeger

Seminar LV, No.26, 5 pp. (2006)

(53) On the functional equation defined by Lie's product formula

Gerd Herzog, Christoph Schmoeger

Studia Math. 175 (2006) 271 - 277

(54) Common spectral properties of linear operators A and B such that ABA=A² and BAB=B²

Christoph Schmoeger

Publ. Inst. Math. (Beograd) 79(93) (2006), 109-114

(55) The Brauer-Ostrowski theorem for matrices of operators

Gerd Herzog, Christoph Schmoeger

Integral Equ. and Operator Theory 57 (2007), 513-520

(56) Extreme points of certain subsets of hermitian elements in Banach algebras

Gerd Herzog, Christoph Schmoeger

Turk. J. Math. 31 (2007), 163-170.

(57) An example on ordered Banach algebras

Gerd Herzog, Christoph Schmoeger

Proc. Amer. Math. Soc. 135, No. 12 (2007) 3949-3954.

(58) Spectral radii of generalized inverses of simply polar matrices

Gerd Herzog, Christoph Schmoeger

Seminar LV, No.29, 6 pp. (2008)

(59) A note on the decomposition of Fredholm operators

Christoph Schmoeger

Demonstratio Math. 41, No. 1 (2008) 151-158

(60) Characterizations of some classes of relatively regular operators

Christoph Schmoeger

Linear Algebra and its Appl. 429 (2008) 302-310

(61) A note on Gateaux differentials of hermitian elements in Banach algebras

Gerd Herzog, Christoph Schmoeger

Demonstratio Math. Vol. 41, No. 4 (2008) 909-913

(62) On pseudo-inverses of Fredholm operators

Christoph Schmoeger

Turk. J. Math. 32 (2008) 467-474

(63) Generalized projections in Banach algebras

Christoph Schmoeger

Linear Algebra and its Appl. 430 (2009) 601-608

(64) Application of the mean ergodic theorem to certain semigroups

Gerd Herzog, Christoph Schmoeger

Publ. Inst. Math. (Beograd) 83(97) (2008) 49-55

(65) Drazin inverses of operators with rational resolvent

Christoph Schmoeger

Publ. Inst. Math. (Beograd) 83(97) (2008) 37-47

(66) A universal property of Co-semigroups

Gerd Herzog, Christoph Schmoeger

Commentationes Math. Universitatis Carolinae 50,1 (2009) 83-88

(67) Boundary value problems for linear operators in ordered Banach spaces

Gerd Herzog, Christoph Schmoeger

Studia Math. 198(3) (2010) 261-270

(68) Suprema of chains of operators

Gerd Herzog, Christoph Schmoeger

Positivity 15(2) (2011) 343-349

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