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| 1. | Sobolev mappings, degree, homotopy classes and rational homology spheres
JOURNAL OF GEOMETRIC ANALYSIS Tom 22 Nr 2 r. 2012, str. 320-338 (Artyku³) Pawe³ Goldstein, Piotr Haj³asz | |
| 2. | A new approach to interior regularity of elliptic systems with quadratic Jacobian structure in dimension two
MANUSCRIPTA MATHEMATICA Tom 126 r. 2008, str. 126 / 121-135 (Artyku³) Piotr Haj³asz, Pawe³ Strzelecki, Xiao Zhong | |
| 3. | How to measure volume with a thread
AMERICAN MATHEMATICAL MONTHLY Tom 112 r. 2005, str. 176-179 (Artyku³) Piotr Haj³asz, Pawe³ Strzelecki | |
| 4. | Sard's theorem for mappings in Holder and Sobolev spaces
MANUSCRIPTA MATHEMATICA Tom 118 r. 2005, str. 383-397 (Artyku³) Bogdan Bojarski, Piotr Haj³asz, Pawe³ Strzelecki | |
| 5. | Formation of cracks under deformations with finite energy
CALCULUS OF VARIATIONS AND PARTIAL DIFFERENTIAL EQUATIONS Tom 19 r. 2004, str. 221-227 (Artyku³) Piotr Haj³asz, P. Koskela | |
| 6. | On boundedness of maximal functions in Sobolev spaces
ANNALES ACADEMIAE SCIENTIARUM FENNICAE-MATHEMATICA Tom 29 r. 2004, str. 167-176 (Artyku³) Piotr Haj³asz, J. Onninen | |
| 7. | A new characterization of the Sobolev space
STUDIA MATHEMATICA Tom 159(2) r. 2003, str. 263-275 (Artyku³) Piotr Haj³asz (Autor orygina³u) | |
| 8. | Sobolev spaces on metric-measure spaces,
Contemporary Mathematics Tom 338 r. 2003, str. 173-218 (Artyku³) Piotr Haj³asz (Autor orygina³u) | |
| 9. | Whitneys example by way of Assouads embedding
PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY Tom 131 Nr 11 r. 2003, str. 3463-3467 (Artyku³) Piotr Haj³asz (Autor orygina³u) | |
| 10. | Approximation in Sobolev spaces of nonlinear expressions involving the gradient
ARKIV FOR MATEMATIK Tom 40 r. 2002, str. 245-274 (Artyku³) Piotr Haj³asz, Jan Maly | |
| 11. | Improved $C¶k$-approximation of higher order Sobolev functions in norm and capacity
INDIANA UNIVERSITY MATHEMATICS JOURNAL Tom 51 Nr 3 r. 2002, str. 507-540 (Artyku³) B Bojarski, Piotr Haj³asz, Pawe³ Strzelecki | |
| 12. | Sobolev inequalities, truncation method , and John domains
Reports of the Faculty of Science & Engineering Saga University, Mathematics Tom 83 r. 2001, str. 109-126 (Artyku³) Piotr Haj³asz (Autor orygina³u) | |
| 13. | Sobolev inequalities, truncation method, and John domains
REPORTS OF THE UNIVERSITY JYVASKYLA Tom 83 r. 2001, str. 109-126 (Artyku³) Piotr Haj³asz (Autor orygina³u) | |
| 14. | How to get rid of one of the weights in a two-weight Poincare inequality?
ANNALES POLONICI MATHEMATICI Tom 74 r. 2000, str. 97-103 (Artyku³) B Franchi, Piotr Haj³asz | |
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| 15. | Sobolev met Poincare
Memoirs of USA, r. 2000 (Ksi±¿ka) Piotr Haj³asz, P Koskela | |