Entropy measures of heart rate variability for short ECG datasets in patients with congestive heart failure B Graff, G Graff, A Kaczkowska
Acta Phys. Pol. B Proc. Suppl 5, 153-158, 2012
48 2012 Ordinal pattern statistics for the assessment of heart rate variability G Graff, B Graff, A Kaczkowska, D Makowiec, JM Amigó, J Piskorski, ...
The European Physical Journal Special Topics 222, 525-534, 2013
44 2013 Fixed point indices of iterations of maps in G Graff, P Nowak-Przygodzki
Discrete and Continuous Dynamical Systems 16 (4), 843-856, 2006
35 2006 Relationship between heart rate variability, blood pressure and arterial wall properties during air and oxygen breathing in healthy subjects B Graff, A Szyndler, K Czechowicz, W Kucharska, G Graff, P Boutouyrie, ...
Autonomic Neuroscience 178 (1-2), 60-66, 2013
32 2013 Entropy measures in the assessment of heart rate variability in patients with cardiodepressive vasovagal syncope B Graff, G Graff, D Makowiec, A Kaczkowska, D Wejer, S Budrejko, ...
Entropy 17 (3), 1007-1022, 2015
24 2015 Minimal number of periodic points for C 1 self-maps of compact simply-connected manifolds G Graff, J Jezierski
Walter de Gruyter GmbH & Co. KG 21 (3), 491-509, 2009
24 2009 Fixed point indices of iterations of planar homeomorphisms G Graff, P Nowak-Przygodzki
22 2003 Fixed point indices of iterated smooth maps in arbitrary dimension G Graff, J Jezierski, P Nowak-Przygodzki
Journal of Differential Equations 251 (6), 1526-1548, 2011
20 2011 Minimal periods of maps of rational exterior spaces G Graff
Fundamenta Mathematicae 163 (2), 99-115, 2000
18 2000 Minimizing the number of periodic points for smooth maps. Non-simply connected case G Graff, J Jezierski
Topology and its Applications 158 (3), 276-290, 2011
17 2011 Persistent homology as a new method of the assessment of heart rate variability G Graff, B Graff, P Pilarczyk, G Jabłoński, D Gąsecki, K Narkiewicz
Plos one 16 (7), e0253851, 2021
15 2021 Dold sequences, periodic points, and dynamics J Byszewski, G Graff, T Ward
Bulletin of the London Mathematical Society 53 (5), 1263-1298, 2021
14 2021 Minimal number of periodic points for smooth self-maps of S3 G Graff, J Jezierski
Fund. Math 204 (2), 127-144, 2009
14 2009 Electrophysiological features in patients with sinus node dysfunction and vasovagal syncope B Graff, G Graff, E Koźluk, M Tokarczyk, A Piątkowska, S Budrejko, ...
Archives of Medical Science 7 (6), 963-970, 2011
13 2011 Minimal number of periodic points for smooth self-maps of two-holed 3-dimensional closed ball G Graff
12 2009 Etyczne aspekty zaufania G Graff
Prakseologia 143 (143), 2003
12 2003 Computing algebraic transfer entropy and coupling directions via transcripts JM Amigó, R Monetti, B Graff, G Graff
Chaos: An Interdisciplinary Journal of Nonlinear Science 26 (11), 2016
11 2016 Minimal number of periodic points of smooth boundary-preserving self-maps of simply-connected manifolds G Graff, J Jezierski
Geometriae Dedicata 187, 241-258, 2017
10 2017 Lefschetz periodic point free self-maps of compact manifolds G Graff, A Kaczkowska, P Nowak-Przygodzki, J Signerska
Topology and its Applications 159 (10-11), 2728-2735, 2012
9 2012 Combinatorial scheme of finding minimal number of periodic points for smooth self-maps of simply connected manifolds G Graff, J Jezierski
Journal of Fixed Point Theory and Applications 13 (1), 63-84, 2013
8 2013