Publikationen

Publikationen



40.

Eröd, János
On the lower bound of the maximum of certain polynomials
East J. Approx., 12 (4) :477-501
2006

39.

Jacob, Birgit; Partington, Jonathan R.
On controllability of diagonal systems with one-dimensional input space
Systems Control Lett., 55 (4) :321--328
2006

38.

Farkas, Bálint; Matolcsi, Máté; Móra, Péter
On Fuglede's conjecture and the existence of universal spectra
J. Fourier Anal. Appl., 12 (5) :483-494
2006

37.

Farkas, Bálint; Lunardi, Alessandra
Maximal regularity for Kolmogorov operators in L\sp 2 spaces with respect to invariant measures
J. Math. Pures Appl. (9), 86 (4) :310-321
2006

36.

Es-Sarhir, Abdelhadi; Farkas, Bálint
Positivity of perturbed Ornstein-Uhlenbeck semigroups on C\sb b(H)
Semigroup Forum, 70 (2) :208--224
2005

35.

Farkas, Bálint; Révész, Szilárd Gy.
Rendezvous numbers in normed spaces
Bull. Austral. Math. Soc., 72 (3) :423-440
2005

34.

Jacob, Birgit; Partington, Jonathan R.
Admissible control and observation operators for Volterra integral equations
J. Evol. Equ., 4 (3) :333--343
2004

33.

Jacob, Birgit; Zwart, Hans
Counterexamples concerning observation operators for C_0-semigroups
SIAM J. Control Optim., 43 (1) :137--153
2004

32.

Farkas, Bálint
Perturbations of bi-continuous semigroups with applications to transition semigroups on C\sb b(H)
Semigroup Forum, 68 (1) :87-107
2004

31.

Winkin, Joseph J.; Callier, Frank M.; Jacob, Birgit; Partington, Jonathan R.
Spectral factorization by symmetric extraction for distributed parameter systems
SIAM J. Control Optim., 43 (4) :1435--1466
2004

30.

Jacob, Birgit
What is the better signal space for discrete-time systems: l_2(\Bbb Z) or l_2(\Bbb N_0)?
SIAM J. Control Optim., 43 (4) :1521--1534
2004

29.

Jacob, Birgit; Partington, Jonathan R.
Admissibility of control and observation operators for semigroups: a survey
, Current trends in operator theory and its applications Band 149 aus Oper. Theory Adv. Appl.
Seite 199--221
Herausgeber: Birkhäuser, Basel
2004
199--221

28.

Bátkai, András; Farkas, Bálint
On the effect of small delays to the stability of feedback systems
, Evolution equations: applications to physics, industry, life sciences and economics (<prt>L</prt>evico <prt>T</prt>erme, 2000) Band 55 aus Progr. Nonlinear Differential Equations Appl.
Seite 83-94
Herausgeber: Birkhäuser, Basel
2003
83-94

27.

Farkas, Bálint
Perturbations of Bi-Continuous Semigroups
Eötvös Loránd University
2003

26.

Zwart, Hans; Jacob, Birgit; Staffans, Olof
Weak admissibility does not imply admissibility for analytic semigroups
, Band 48
Seite 341--350
2003
341--350

25.

Jacob, Birgit
An operator theoretical approach towards systems over the signal space l_2(\Bbb Z)
Integral Equations Operator Theory, 46 (2) :189--214
2003

24.

Farkas, Bálint; Matolcsi, Máté
Positive forms on Banach spaces
Acta Math. Hungar., 99 (1-2) :43-55
2003

23.

Jacob, Birgit; Partington, Jonathan R.; Pott, Sandra
Conditions for admissibility of observation operators and boundedness of Hankel operators
Integral Equations Operator Theory, 47 (3) :315--338
2003

22.

Farkas, Bálint
On the duals of L\sb p spaces with 0<p<1
Acta Math. Hungar., 98 (1-2) :71-77
2003

21.

Jacob, Birgit; Partington, Jonathan R.; Pott, Sandra
Admissible and weakly admissible observation operators for the right shift semigroup
Proc. Edinb. Math. Soc. (2), 45 (2) :353--362
2002

20.

Jacob, Birgit; Zwart, Hans
Properties of the realization of inner functions
Math. Control Signals Systems, 15 (4) :356--379
2002

19.

Jacob, Birgit; Leblond, Juliette; Marmorat, Jean-Paul; Partington, Jonathan R.
A constrained approximation problem arising in parameter identification
, Band 351/352
Seite 487--500
2002
487--500

18.

Jacob, Birgit
Zeros of Fredholm operator valued H^p-functions
Math. Nachr., 227 :81--97
2001

17.

Jacob, Birgit; Zwart, Hans
Exact controllability of C_0-groups with one-dimensional input operators
Advances in mathematical systems theory aus Systems Control Found. Appl.
Seite 221--242
Herausgeber: Birkhäuser Boston, Boston, MA
2001
221--242

16.

Jacob, Birgit; Zwart, Hans
Exact observability of diagonal systems with a one-dimensional output operator
, Band 11
Seite 1277--1283
2001
1277--1283

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