Haesen, Stefan; Petrović-Torgašev, Miroslava; Verstraelen, Leopold On Thurston’s geometrical space form problem: on quasi space forms. arXiv:2401.00472 Preprint, arXiv:2401.00472 [math.DG] (2023). BibTeX Cite \textit{S. Haesen} et al., ``On Thurston's geometrical space form problem: on quasi space forms'', Preprint, arXiv:2401.00472 [math.DG] (2023) Full Text: arXiv OA License
Haesen, Stefan (ed.); Verstraelen, Leopold (ed.) Topics in modern differential geometry. (English) Zbl 1364.53003 Atlantis Transactions in Geometry 1. Amsterdam: Atlantis Press (ISBN 978-94-6239-239-7/hbk; 978-94-6239-240-3/ebook). vii, 284 p. (2017). MSC: 53-06 53Cxx 53Dxx 00B15 PDFBibTeX XMLCite \textit{S. Haesen} (ed.) and \textit{L. Verstraelen} (ed.), Topics in modern differential geometry. Amsterdam: Atlantis Press (2017; Zbl 1364.53003) Full Text: DOI
Haesen, Stefan; Verstraelen, Leopold Erratum: “Ideally embedded space-times”. (English) Zbl 1295.53085 J. Math. Phys. 55, No. 4, 049902, 1 p. (2014). MSC: 53C80 83C99 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, J. Math. Phys. 55, No. 4, 049902, 1 p. (2014; Zbl 1295.53085) Full Text: DOI
Dillen, Franki; Fastenakels, Johan; Haesen, Stefan; Van der Veken, Joeri; Verstraelen, Leopold Submanifold theory and parallel transport. (English) Zbl 1299.53039 Kragujevac J. Math. 37, No. 1, 33-43 (2013). MSC: 53B20 53C42 PDFBibTeX XMLCite \textit{F. Dillen} et al., Kragujevac J. Math. 37, No. 1, 33--43 (2013; Zbl 1299.53039)
Haesen, Stefan; Nistor, Ana Irina; Verstraelen, Leopold On growth and form and geometry. I. (English) Zbl 1349.53032 Kragujevac J. Math. 36, No. 1, 5-25 (2012). Reviewer: Neda Bokan (Beograd) MSC: 53B25 53-02 PDFBibTeX XMLCite \textit{S. Haesen} et al., Kragujevac J. Math. 36, No. 1, 5--25 (2012; Zbl 1349.53032)
Haesen, Stefan; Kowalczyk, Daniel; Verstraelen, Leopold On the extrinsic principal directions of Riemannian submanifolds. (English) Zbl 1208.53023 Note Mat. 29, No. 2, 41-53 (2009). MSC: 53B25 53C42 PDFBibTeX XMLCite \textit{S. Haesen} et al., Note Mat. 29, No. 2, 41--53 (2009; Zbl 1208.53023) Full Text: Link
Haesen, Stefan; Verstraelen, Leopold Natural intrinsic geometrical symmetries. (English) Zbl 1189.53018 SIGMA, Symmetry Integrability Geom. Methods Appl. 5, Paper 086, 15 p. (2009). MSC: 53B20 53C35 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, SIGMA, Symmetry Integrability Geom. Methods Appl. 5, Paper 086, 15 p. (2009; Zbl 1189.53018) Full Text: DOI arXiv EuDML EMIS
Jahanara, Bilkis; Haesen, Stefan; Petrović-Torgašev, Miroslava; Verstraelen, Leopold On the Weyl curvature of Deszcz. (English) Zbl 1199.53028 Publ. Math. Debr. 74, No. 3-4, 417-431 (2009). MSC: 53A55 53B20 PDFBibTeX XMLCite \textit{B. Jahanara} et al., Publ. Math. Debr. 74, No. 3--4, 417--431 (2009; Zbl 1199.53028)
Decu, Simona; Haesen, Stefan; Verstraelen, Leopold Optimal inequalities characterising quasi-umbilical submanifolds. (English) Zbl 1162.53013 JIPAM, J. Inequal. Pure Appl. Math. 9, No. 3, Paper No. 79, 7 p. (2008). MSC: 53B25 53B20 PDFBibTeX XMLCite \textit{S. Decu} et al., JIPAM, J. Inequal. Pure Appl. Math. 9, No. 3, Paper No. 79, 7 p. (2008; Zbl 1162.53013) Full Text: EuDML EMIS
Deszcz, Ryszard; Haesen, Stefan; Verstraelen, Leopold On natural symmetries. (English) Zbl 1158.53008 Mihai, Adela (ed.) et al., Topics in differential geometry. Bucharest: Editura Academiei Române (ISBN 978-973-27-1656-4/hbk). 249-308 (2008). Reviewer: R. Iordanescu (Bucureşti) MSC: 53B20 53C42 PDFBibTeX XMLCite \textit{R. Deszcz} et al., in: Topics in differential geometry. Bucharest: Editura Academiei Române. 249--308 (2008; Zbl 1158.53008)
Haesen, Stefan; Verpoort, Steven; Verstraelen, Leopold The mean curvature of the second fundamental form. (English) Zbl 1161.53044 Houston J. Math. 34, No. 3, 703-719 (2008). Reviewer: Manfredo Perdigao do Carmo (Rio de Janeiro) MSC: 53C42 53A10 53C50 PDFBibTeX XMLCite \textit{S. Haesen} et al., Houston J. Math. 34, No. 3, 703--719 (2008; Zbl 1161.53044) Full Text: Link
Decu, Simona; Haesen, Stefan; Verstraelen, Leopold Optimal inequalities involving Casorati curvatures. (English) Zbl 1195.53083 Bull. Transilv. Univ. Brașov, Ser. B (N.S.) 14(49), Suppl., 85-93 (2007). MSC: 53C42 53C40 PDFBibTeX XMLCite \textit{S. Decu} et al., Bull. Transilv. Univ. Brașov, Ser. B (N.S.) 14(49), 85--93 (2007; Zbl 1195.53083)
Haesen, Stefan; Verstraelen, Leopold On the sectional curvature of Deszcz. (English) Zbl 1199.53045 An. Științ. Univ. Al. I. Cuza Iași, Ser. Nouă, Mat. 53, Suppl., 181-190 (2007). Reviewer: Mircea Crasmareanu (Iaşi) MSC: 53B20 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, An. Științ. Univ. Al. I. Cuza Iași, Ser. Nouă, Mat. 53, 181--190 (2007; Zbl 1199.53045)
Haesen, Stefan; Verstraelen, Leopold Pseudosymmetry collineations. (English) Zbl 1152.81462 J. Math. Phys. 48, No. 10, 102501, 9 p. (2007). MSC: 53C35 53C80 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, J. Math. Phys. 48, No. 10, 102501, 9 p. (2007; Zbl 1152.81462) Full Text: DOI
Jahanara, B.; Haesen, S.; Sentürk, Z.; Verstraelen, L. On the parallel transport of the Ricci curvatures. (English) Zbl 1169.53016 J. Geom. Phys. 57, No. 9, 1771-1777 (2007). MSC: 53C05 53C25 PDFBibTeX XMLCite \textit{B. Jahanara} et al., J. Geom. Phys. 57, No. 9, 1771--1777 (2007; Zbl 1169.53016) Full Text: DOI
Haesen, S.; Verstraelen, L. Properties of a scalar curvature invariant depending on two planes. (English) Zbl 1109.53020 Manuscr. Math. 122, No. 1, 59-72 (2007). Reviewer: Maido Rahula (Tartu) MSC: 53B20 53A55 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, Manuscr. Math. 122, No. 1, 59--72 (2007; Zbl 1109.53020) Full Text: DOI
Gielis, Johan; Haesen, Stefan; Verstraelen, Leopold Universal natural shapes. (English) Zbl 1120.53300 Kragujevac J. Math. 28, 57-68 (2005). Reviewer: Miroslava Torgašev-Petrović (Kragujevac) MSC: 53A04 53A05 53A07 PDFBibTeX XMLCite \textit{J. Gielis} et al., Kragujevac J. Math. 28, 57--68 (2005; Zbl 1120.53300)
Haesen, S.; Verstraelen, L. Extrinsic symmetries of parallel transport. (English) Zbl 1098.53027 Boucetta, Mohamed (ed.) et al., Differential geometry and topology, discrete and computational geometry. Proceedings of the NATO Advanced Research Study Institute, Marrakech, Morocco, May 17–31, 2004. Amsterdam: IOS Press (ISBN 1-58603-507-X/hbk). NATO Science Series III: Computer & Systems Sciences 197, 239-255 (2005). Reviewer: Jarek Kedra (Aberdeen) MSC: 53C20 53B25 53-02 53-03 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, NATO Sci. Ser. III, Comput. Syst. Sci. 197, 239--255 (2005; Zbl 1098.53027)
Haesen, S.; Verstraelen, L. Curvature and symmetries of parallel transport. (English) Zbl 1093.53023 Boucetta, Mohamed (ed.) et al., Differential geometry and topology, discrete and computational geometry. Proceedings of the NATO Advanced Research Study Institute, Marrakech, Morocco, May 17–31, 2004. Amsterdam: IOS Press (ISBN 1-58603-507-X/hbk). NATO Science Series III: Computer & Systems Sciences 197, 197-238 (2005). Reviewer: Lieven Vanhecke (Leuven) MSC: 53B20 53C20 53B30 53C50 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, NATO Sci. Ser. III, Comput. Syst. Sci. 197, 197--238 (2005; Zbl 1093.53023)
Dillen, Franki; Haesen, Stefan; Petrović-Torgašev, Miroslava; Verstraelen, Leopold An inequality between intrinsic and extrinsic scalar curvature invariants for codimension 2 embeddings. (English) Zbl 1083.53062 J. Geom. Phys. 52, No. 2, 101-112 (2004). Reviewer: Shen Yi-Bing (Hangzhou) MSC: 53C50 53C42 PDFBibTeX XMLCite \textit{F. Dillen} et al., J. Geom. Phys. 52, No. 2, 101--112 (2004; Zbl 1083.53062) Full Text: DOI
Deszcz, R.; Haesen, S.; Verstraelen, L. Classification of space-times satisfying some pseudo-symmetry type conditions. (English) Zbl 1082.53019 Soochow J. Math. 30, No. 3, 339-349 (2004). Reviewer: Gabriel Teodor Pripoae (Bucureşti) MSC: 53A55 83C20 53B30 PDFBibTeX XMLCite \textit{R. Deszcz} et al., Soochow J. Math. 30, No. 3, 339--349 (2004; Zbl 1082.53019)
Haesen, Stefan; Verstraelen, Leopold Classification of the pseudosymmetric space-times. (English) Zbl 1071.83016 J. Math. Phys. 45, No. 6, 2343-2346 (2004). MSC: 83C20 83C60 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, J. Math. Phys. 45, No. 6, 2343--2346 (2004; Zbl 1071.83016) Full Text: DOI
Haesen, Stefan; Verstraelen, Leopold Ideally embedded space-times. (English) Zbl 1068.53053 J. Math. Phys. 45, No. 4, 1497-1510 (2004); erratum ibid. 55, No. 4, 049902, 1 p. (2014). MSC: 53C80 83C99 PDFBibTeX XMLCite \textit{S. Haesen} and \textit{L. Verstraelen}, J. Math. Phys. 45, No. 4, 1497--1510 (2004; Zbl 1068.53053) Full Text: DOI arXiv
Haesen, S.; Šebeković, A.; Verstraelen, L. Relations between intrinsic and extrinsic curvatures. (English) Zbl 1274.53024 Kragujevac J. Math. 25, 139-145 (2003). MSC: 53B20 PDFBibTeX XMLCite \textit{S. Haesen} et al., Kragujevac J. Math. 25, 139--145 (2003; Zbl 1274.53024)