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Institute of Mathematics



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Seminars at the department


Seminars are usually held on Mondays at 14:00 hour.

Place of the seminars: ELTE, TTK, Department of Applied Analysis
(room 3-719)

Everybody welcomed!

Current seminars


2011/2012 II. semester

Date Lecturer Title of the lecture
20. february Zoltán Sebestyén On essentially self-adjoint operators
27. february Dan Popovici Factorizations of linaer relations
5. march Zsigmond Tarcsay Lebesgue decomposition of positive operators
14. march (wed) Vilmos Komornik (Université de Strasbourg) On the effciency of expansions in noninteger bases
19. march Tamás Práger (ELTE Department of Meteorology) Mathematical and physical interpetation of Ensemble forecasts
26. march Zsolt Szűcs On the singularity of positive functionals
16. april Magnus Fontes (Lund) Optimal Results for the Nonhomogeneous Initial-Boundary Value Problem for the Two-Dimensional Navier-Stokes Equations
19. april, 13:00 Sándor Kristály (BBTE) Variational treatment of elliptic problems
7. may Barna Garay (PPKE ITK) Chaos in Vallis' assymetric Lorencz model for El Nino
21. may MSc students Thesis talks


Former seminars at the department


2011/2012 I. semester

Date Lecturer Title of the lecture
26. september Petra Csomós (Univ. Innsbruck) On the stability of operator matricies
3. october Tamás Matolcsi Radiation reaction
10. october Bálint Farkas Again and last: bicontinuous semigroups
17. october Zsigmond Tarcsay Unified treatment of perturbation theorems in real and complex Hilbert spaces (I.)
24. october Zsigmond Tarcsay Unified treatment of perturbation theorems in real and complex Hilbert spaces (II.)
7. november Tamás Horváth Discontinuous Galerkin methods - maximum principles and matrix assembly
14. november Alexander Ostermann (Univ. Innsbruck) Exponential integrators
21. november Gergely Röst (SZTE Bolyai Institute) Persistency of infinitely delayed desease propagation models
5. december Zoltán Sebestyén Operator description in Hilbert space
12. december Zoltán Sebestyén Operator description in Hilbert space (condtinued)


2008/2009 II. semester

Date Lecturer Title of the lecture
Minisimposium in the honor of 70th bithday of Owe Axelsson


2005/2006 II. semester

Date Lecturer Title of the lecture
20. February Zoltán Sebestyén Still on Lebesgue's decomposition theorem
27. February Prof. Friedrich Wagemann (Nantes) A Lie group structure on groups of holomorphic maps
13. March Mihály Fečkan Continuous approximations of ordinary differential equations with discontinuous right hand side.
20. March Jaap van der Vegt (Twente) Space-time discontinuous Galerkin methods for nonlinear water waves
8. May Ferenc Izsák Regularity of characteristic functions
15. May Vilmos Komornik (Strasbourg) Uniquenessity sets


2003/2004 I. semester

Date Lecturer Title of the lecture
4. Septembre Prof. Abdelaziz Rhandi Optimal regurality of elliptic operators with unbounded drift coefficients


1998/99 I. semester

Date Lecturer Title of the lecture
29. Septembre Sebestyén Zoltán Nemkorlátos operátorok rendezéséről
6. Octobre J. G. Cardoso Some elementary properties of SU(2,2)-matrices
13. Octobre S. Korotov Weakened acute type condition for tetrahedral triangulations and the discrete maximum principle
20. Octobre Molnár Lajos Wigner unitér-antiunitér tételének algebrai bizonyítása
27. Octobre Farkas Gyula Aszimptotikusan autonóm késleltetett egyenletek


1997/98 II. semester

Date Lecturer Title of the lecture
9. February Stoyan Gisbert A Babuska-lemma, az inf-sup feltétel és szerepe a Stokes-féle feladattal kapcsolatban
16. February Stoyan Gisbert A H10 tér Velte-felbontása és az inf-sup konstansok
16. March Farkas Gyula Irányíthatóság és megfigyelhetőség kémiai rendszerekben
23. March Hatvani László Másodrendű lineáris differenciálegyenletek véletlen együtthatókkal
30. March Ivonne Squara (Bari) A unifying approach to stability and invariance properties of ODES
20. April Rásonyi Miklós FK-terek és végtelen mátrixok
27. April J. Wolf
(Humboldt Univ. Berlin) 		Hölder continuity for weak solutions to certain nonlinear parabolic systems (the case n=2)
4. May Krisztin Tibor Egy funkcionál d.e. globális attraktora
11. May Sebestyén F. Zoltán Pál típusú interpolációs eljárások