Kérchy László honlapja

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Publikációs lista

Bercovici, H.; Foias, C.; Kerchy, L.; Sz.-Nagy, B.: Complements a l'etude des operateurs de classe $C_0$.IV., (Acta Sci. Math. 41, 29-31 (1979).)
Kerchy, L.: On p-weak contractions., (Acta Sci. Math. 42, 281-297 (1980).)
Kerchy, L.: On $C_0$-operators with property ($P$)., (Acta Sci. Math. 42, 109-116 (1980).)
Kerchy, L.: On invariant subspace lattices of C//11-contractions., (Acta Sci. Math. 43, 281-293 (1981).)
Kerchy, Laszlo: On the commutant of C//11-contractions., (Acta Sci. Math. 43, 15-26 (1981).)
Kerchy, L.: Injection-similar isometries., (Acta Sci. Math. 44, 157-163 (1982).)
K\'erchy, L\'aszl\'o: Subspace lattices connected with $C\sb{11}$-contractions., (Approximation theory and functional analysis, Anniv. Vol., Proc. Conf., Oberwolfach 1983, ISNM 65, 89-98 (1984).)
Bercovici, Hari; Kerchy, Laszlo: Quasisimilarity and properties of the commutant of $C\sb{11}$ contractions., (Acta Sci. Math. 45, 67-74 (1983).)
K\'erchy, L\'aszl\'o: Contractions being weakly similar to unitaries., (Advances in invariant subspaces and other results of operator theory, 9th Int. Conf. Oper. Theory, Timi\c{s}oara \& Herculane/Rom. 1984, Oper. Theory, Adv. Appl. 17, 187-200 (1986).)
Bercovici, H.; K\'erchy, L.: On the spectra of $C\sb{11}$-contractions., (Proc. Am. Math. Soc. 95, 412-418 (1985).)
K\'erchy, L.: Approximation and quasisimilarity., (Acta Sci. Math. 48, 227-242 (1985).)
K\'erchy, L.: On a conjecture of Teodorescu and Vasyunin., (Special classes of linear operators and other topics, 11. Int. Conf. Oper. Theory, Buchar./Rom. 1986, Oper. Theory, Adv. Appl. 28, 169-172 (1988).)
K\'erchy, L.: A description of invariant subspaces of $C\sb{11}$-contractions., (J. Oper. Theory 15, 327-344 (1986).)
K\'erchy, L\'asl\'o: On the spectra of contractions belonging to special classes., (J. Funct. Anal. 67, 153-166 (1986).)
K\'erchy, L\'aszl\'o: Contractions weakly similar to unitaries. II., (Acta Sci. Math. 51, No.3/4, 475-489 (1987).)
K\'erchy, L.: On the residual parts of completely non-unitary contractions., (Acta Math. Hung. 50, 127-145 (1987).)
K\'erchy, L.: Invariant subspaces of $C\sb{1\sp .}$-contractions with non-reductive unitary extensions., (Bull. Lond. Math. Soc. 19, 161-166 (1987).)
K\'erchy, L\'aszl\'o: On the multiplicity of the commutant of operators., (Topics in operator theory and interpolation, Essays Dedic. M. S. Livsic 70. Birthday, Oper. Theory, Adv. Appl. 29, 233-243 (1988).)
K\'erchy, L.: Injection of shifts into contractions., (Acta Sci. Math. 53, No.3/4, 329-338 (1989).)
K\'erchy, L\'aszl\'o: Isometric asymptotes of power bounded operators., (Indiana Univ. Math. J. 38, No.1, 173-188 (1989).)
K\'erchy, L.: On the inclination of hyperinvariant subspaces of $C\sb{11}$- contractions., (Oper. Theory, Adv. Appl. 41, 345-351 (1989).)
K\'erchy, L.: On the functional calculus of contractions with nonvanishing unitary asymptotes., (Mich. Math. J. 37, No.3, 323-338 (1990).)
K\'erchy, L\'aszl\'o: Unitary asymptotes of Hilbert space operators., (Zem\'anek, Jaroslav (ed.), Functional analysis and operator theory. Proceedings of the 39th semester at the Stefan Banach International Mathematical Center in Warsaw, Poland, held March 2-May 30, 1992. Warsaw: Polish Academy of Sciences, Banach Cent. Publ. 30, 191-201 (1994).)
K\'erchy, L\'aszl\'o: On the reducing essential spectra of contractions., (Acta Sci. Math. 57, No.1-4, 175-198 (1993).)
K\'erchy, L\'aszl\'o: On the multiplicity of the commutant of operators. II., (Gheondea, A. (ed.) et al., Topics in operator theory, operator algebras and applications. 15th international conference on operator theory, Timi\c{s}oara, Romania, June 6-10, 1994. Bucharest: Institute of Mathematics of the Romanian Academy. 169-192 (1995). [ISBN 973-0-00189-8])
K\'erchy, L\'aszl\'o: On roots of normal operators., (Acta Sci. Math. 60, No.3-4, 439-449 (1995).)
K\'erchy, L\'aszl\'o: Injection of unilateral shifts into contractions with non-vanishing unitary asymptotes., (Acta Sci. Math. 61, No.1-4, 443-476 (1995).)
K\'erchy, L.; van Neerven, J.: Polynomially bounded operators whose spectrum on the unit circle has measure zero., (Acta Sci. Math. 63, No.3-4, 551-562 (1997).)
K\'erchy, L.: Operators with regular norm-sequences., (Acta Sci. Math. 63, No.3-4, 571-605 (1997).)
Kérchy László: Bevezetés a véges dimenziós vektorterek elméletébe, (JATE Press (Szeged, 1991), Polygon (Szeged, 1997))
K\'erchy, L\'aszl\'o: Unbounded representations of discrete abelian semigroups., (Balakrishnan, A. V. (ed.), Semigroups of operators: theory and applications. Proceedings of the international conference in Newport Beach, CA, USA, December 14-18, 1998. Basel: Birkh\"auser. Prog. Nonlinear Differ. Equ. Appl. 42, 141-150 (2000). [ISBN 3-7643-6310-X/hbk])
K\'erchy, L\'aszl\'o: Criteria of regularity for norm-sequences., (Integral Equations Oper. Theory 34, No.4, 458-477 (1999).)
K\'erchy, L\'aszl\'o; M\"uller, Vladimir: Criteria of regularity for norm-sequences. II., (Acta Sci. Math. 65, No.1-2, 131-138 (1999).)
K\'erchy, L\'aszl\'o: Hyperinvariant subspaces of operators with non-vanishing orbits., (Proc. Am. Math. Soc. 127, No.5, 1363-1370 (1999). [ISSN 0002-9939; ISSN 1088-6826)
K\'erchy, L\'aszl\'o: On homogeneous contractions., (J. Oper. Theory 41, No.1, 121-126 (1999).)
Kérchy László: Szőkefalvi-Nagy Béla, 1913-1998, (Magyar Tudomány, 1999/7, 862-865)
K\'erchy, L\'aszl\'o: Representations with regular norm-behaviour of discrete abelian semigroups., (Acta Sci. Math. 65, No.3-4, 701-726 (1999).)
K\'erchy, L\'aszl\'o: On the hyperinvariant subspace problem for asymptotically nonvanishing contractions., (K\'erchy, L\'aszl\'o (ed.) et al., Recent advances in operator theory and related topics. The B\'ela Sz\H{o}kefalvi-Nagy memorial volume. Proceedings of the memorial conference, Szeged, Hungary, August 2-6, 1999. Basel: Birkh\"auser. Oper. Theory, Adv. Appl. 127, 399-422 (2001). [ISBN 3-7643-6607-9/hbk; ISSN 0378-620X])
Bercovici, H.; K\'erchy, L.; Kovac, R.: Obstructions to diagonalization modulo Lorentz ideals., (Pac. J. Math. 191, No.2, 201-206 (1999))
K\'erchy, L\'aszl\'o: Isometries with isomorphic invariant subspace lattices., (J. Funct. Anal. 170, No.2, 475-511 (2000))
L. Kérchy, C. Foias, I. Gohberg, H. Langer (editors): Recent Advances in Operator Theory and Related Topics, Béla Szőkefalvi-Nagy Memorial Volume, (Operator Theory: Advances and Applications, 127 (2001), Birkhauser.)
L. Kérchy, H. Langer: Béla Szőkefalvi-Nagy 1913-1998, (Operator Theory: Advances and Applications, 127 (2001), xxi-xxxviii)
L. Kérchy: On the hyperinvariant subspace problem for asymptotically nonvanishing contractions, (Operator Theory: Advances and Applications, 127 (2001), 399-422)
K\'erchy, L\'aszl\'o: Generalized Toeplitz operators associated with operators of regular norm-sequences., (Kubrusly, Carlos (ed.) et al., Semigroups of operators: theory and applications. Proceedings of the 2nd international conference, Rio de Janeiro, Brazil, September 10-14, 2001. New York, NY: Optimization Software Inc., Publications. 119-131 (2002). [ISBN 0-911575-11-1/hbk])
K\'erchy, L\'aszl\'o: Generalized Toeplitz operators, (Acta Sci. Math. 68, No.1-2, 373-400 (2002))
L. Kérchy, Vu Quoc Phong: On invariant subspaces for power-bounded operators of class $C_{1\cdot}$, (Taiwanese Journal of Mathematics, 7 (2003), 69-75.)
Kérchy László: Hilbert terek operátorai, (Polygon, 2003)
K\'erchy, L.: On the factorization of operator-valued functions, (Acta Sci. Math. 69, No.1-2, 337-348 (2003))
Kérchy, László: Elementary and reflexive hyperplanes of generalized Toeplitz operators, (J. Operator Theory, 51 (2004), 387-409)
Kérchy, László: Operators having commutants endowed with cyclicity-preserving quasiaffinities, (Hokkaido Mth. J., 33 (2004), 413-428)
Kérchy, László: Canonical factorization of vectors with respect to an operator in Hilbert space, (Acta Sci. Math. (Szeged), 70 (2004), 299-317)
Kérchy, László: Cyclic properties and stability of commuting power bounded operators, (Acta Sci. Math. (Szeged))
Kérchy László: Hilbert térbeli izometriák és stabilitás, (Előadások a Magyar Tudományos Akedémián)
Kérchy László: Szőkefalvi-Nagy Béla, 1913-1998, (Emlékbeszédek a Magyar Tudományos Akadémián, 2002-2005, MTA 2006, 419-451.)
L. Kérchy - V. Müller: Compressions of stable contractions, (Integral Equations Operator Theory)
L. Kérchy: Shift-type invariant subspaces of contractions, (J. Functional Analysis)
L. Kérchy - Z. Léka: Representations with regular norm-behaviour of locally compact abelian semigroups, (Studia Mathematica)
Kérchy László: Valós- és funkcionálanalízis, (Polygon, Szeged)
Kérchy László: Függelék Szőkefalvi-Nagy Béla Komplex függvénytan jegyzetéhez, (Polygon Szeged)
H. Bercovici, L. Kérchy: Spectral behaviour of C10-contractions, (Operator Theory Live, Theta Foundation, Bucharest)
B. Sz.-Nagy, C. Foias, H. Bercovici, L. Kérchy: Harmonic Analysis of Operators on Hilbert Space, Revised and Enlarged Edition, (Universitext, Springer)
L. Kérchy: Quasianalytic contractions and function algebras, (Indiana Univ. Math. J., 60 (2011), 21-40)
Gy. P. Gehér and L. Kérchy: On the commutant of asymptotically non-vanishing contractions, (Periodica Nathematica Hungarica, 63 (2011), 39--51)
L. Kérchy and A. Szalai: Characterization of stability of contractions, ()
L. Kérchy and V. Totik: Compression of quasianalytic spectral sets of cyclic contractions, (J. Functional Analysis, 263 (2012), 2754-27692)
L. Kérchy: Unitary asymptotes and quasianalycity, ()