Das, J.; Halder, K. A study of \(\eta\)-Ricci solitons on 3-dimensional hyperbolic Kenmotsu manifolds. (English) Zbl 07892900 Gaṇita 74, No. 1, 191-200 (2024). MSC: 53C25 53D15 53D10 53E20 PDFBibTeX XMLCite \textit{J. Das} and \textit{K. Halder}, Gaṇita 74, No. 1, 191--200 (2024; Zbl 07892900) Full Text: Link
Aydın, Sibel Gerdan; Taştan, Hakan Mete Warped-twisted products and Einstein-like manifolds. (English) Zbl 07867777 Novi Sad J. Math. 53, No. 2, 101-119 (2023). MSC: 53C15 53C25 PDFBibTeX XMLCite \textit{S. G. Aydın} and \textit{H. M. Taştan}, Novi Sad J. Math. 53, No. 2, 101--119 (2023; Zbl 07867777) Full Text: DOI
Pokhariyal, Ganesh Prasad; Chaubey, Sudhakar Kumar Study of \(P\)-curvature tensor in the space-time of general relativity. (English) Zbl 07853235 Honam Math. J. 45, No. 2, 316-324 (2023). MSC: 83C05 83C35 PDFBibTeX XMLCite \textit{G. P. Pokhariyal} and \textit{S. K. Chaubey}, Honam Math. J. 45, No. 2, 316--324 (2023; Zbl 07853235) Full Text: DOI
Stepanov, S. E.; Aleksandrova, I. A.; Tsyganok, I. I. On symmetric Killing tensors and Codazzi tensors of ranks \(p \geq 2\). (English. Russian original) Zbl 1532.53039 J. Math. Sci., New York 276, No. 3, 443-469 (2023); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 179, 94-120 (2020). MSC: 53B20 53A45 PDFBibTeX XMLCite \textit{S. E. Stepanov} et al., J. Math. Sci., New York 276, No. 3, 443--469 (2023; Zbl 1532.53039); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 179, 94--120 (2020) Full Text: DOI
Atashpeykar, Parvane; Zaeim, Amirhesam; Haji-Badali, Ali Weakly-Einstein conditions over locally conformally flat Lorentzian three-manifolds. (English) Zbl 07770244 Rep. Math. Phys. 91, No. 2, 183-198 (2023). MSC: 58E11 53B30 53C50 PDFBibTeX XMLCite \textit{P. Atashpeykar} et al., Rep. Math. Phys. 91, No. 2, 183--198 (2023; Zbl 07770244) Full Text: DOI
Ali, Mohabbat; Khan, Quddus; Vasiulla, Mohd On almost pseudo Schouten symmetric manifolds. (English) Zbl 1538.53039 Facta Univ., Ser. Math. Inf. 38, No. 1, 109-124 (2023). MSC: 53C15 53C25 53C35 PDFBibTeX XMLCite \textit{M. Ali} et al., Facta Univ., Ser. Math. Inf. 38, No. 1, 109--124 (2023; Zbl 1538.53039) Full Text: DOI
Bonsante, Francesco; Mondello, Gabriele; Schlenker, Jean-Marc Minimizing immersions of a hyperbolic surface in a hyperbolic 3-manifold. (English) Zbl 1528.53061 Am. J. Math. 145, No. 4, 995-1049 (2023). Reviewer: Andrea Tamburelli (Houston) MSC: 53C42 57K32 49Q10 PDFBibTeX XMLCite \textit{F. Bonsante} et al., Am. J. Math. 145, No. 4, 995--1049 (2023; Zbl 1528.53061) Full Text: DOI arXiv
Poddar, Rahul; Sharma, Ramesh; Subramanian, Balasubramanian Certain classification results on \(m\)-quasi Einstein manifolds. (English) Zbl 1520.53040 Result. Math. 78, No. 5, Paper No. 197, 14 p. (2023). MSC: 53C25 53C20 PDFBibTeX XMLCite \textit{R. Poddar} et al., Result. Math. 78, No. 5, Paper No. 197, 14 p. (2023; Zbl 1520.53040) Full Text: DOI
Li, Yanlin; Mondal, Somnath; Dey, Santu; Bhattacharyya, Arindam; Ali, Akram A study of conformal \(\eta \)-Einstein solitons on trans-Sasakian 3-manifold. (English) Zbl 1519.53080 J. Nonlinear Math. Phys. 30, No. 2, 428-454 (2023). MSC: 53E30 53C25 PDFBibTeX XMLCite \textit{Y. Li} et al., J. Nonlinear Math. Phys. 30, No. 2, 428--454 (2023; Zbl 1519.53080) Full Text: DOI OA License
Wang, Yaning; Zhang, Yingdong Codazzi type \(h\)-operators on real hypersurfaces in nonflat complex space forms. (English) Zbl 1538.53023 Publ. Math. Debr. 103, No. 1-2, 203-213 (2023). Reviewer: Mohamed Belkhelfa (Mascara) MSC: 53B25 53C20 53B20 32V40 PDFBibTeX XMLCite \textit{Y. Wang} and \textit{Y. Zhang}, Publ. Math. Debr. 103, No. 1--2, 203--213 (2023; Zbl 1538.53023) Full Text: DOI
Mantica, Carlo Alberto; Molinari, Luca Guido Codazzi tensors and their space-times and cotton gravity. (English) Zbl 1528.83148 Gen. Relativ. Gravitation 55, No. 4, Paper No. 62, 24 p. (2023). MSC: 83F05 53B30 83D05 53B50 83C55 83C05 14D15 PDFBibTeX XMLCite \textit{C. A. Mantica} and \textit{L. G. Molinari}, Gen. Relativ. Gravitation 55, No. 4, Paper No. 62, 24 p. (2023; Zbl 1528.83148) Full Text: DOI arXiv OA License
Stepanov, S. E.; Tsyganok, I. I.; Mikeš, J. Complete Riemannian manifolds with Killing-Ricci and Codazzi-Ricci tensors. (English) Zbl 1507.53036 Differ. Geom. Mnogoobr. Figur 53, 112-117 (2022). Reviewer: Chandan Kumar Mondal (Durgapur) MSC: 53C20 53B20 PDFBibTeX XMLCite \textit{S. E. Stepanov} et al., Differ. Geom. Mnogoobr. Figur 53, 112--117 (2022; Zbl 1507.53036) Full Text: DOI OA License
Shin, Jinwoo Three-dimensional Ricci-degenerate Riemannian manifolds satisfying geometric equations. (English) Zbl 1504.53108 Manuscr. Math. 169, No. 3-4, 401-423 (2022). MSC: 53E20 53C21 53C25 PDFBibTeX XMLCite \textit{J. Shin}, Manuscr. Math. 169, No. 3--4, 401--423 (2022; Zbl 1504.53108) Full Text: DOI arXiv
Rovenski, Vladimir; Stepanov, Sergey; Tsyganok, Irina On kernels of second-order elliptic operators defined by Stein-Weiss operators acting on covariant tensors. (English) Zbl 1498.53016 Balkan J. Geom. Appl. 27, No. 1, 138-151 (2022). MSC: 53B20 58J60 35J15 PDFBibTeX XMLCite \textit{V. Rovenski} et al., Balkan J. Geom. Appl. 27, No. 1, 138--151 (2022; Zbl 1498.53016) Full Text: Link
Taşci, Ayşe Yavuz; Özen Zengin, Füsun On Z-symmetric manifold admitting projective curvature tensor. (English) Zbl 1492.53020 Int. Electron. J. Geom. 15, No. 1, 39-46 (2022). MSC: 53B20 53B15 53C25 53B10 PDFBibTeX XMLCite \textit{A. Y. Taşci} and \textit{F. Özen Zengin}, Int. Electron. J. Geom. 15, No. 1, 39--46 (2022; Zbl 1492.53020) Full Text: Link
Mantica, Carlo Alberto; Molinari, Luca Guido The Jordan algebras of Riemann, Weyl and curvature compatible tensors. (English) Zbl 1486.53022 Colloq. Math. 167, No. 1, 63-72 (2022). MSC: 53B20 53B05 17C90 PDFBibTeX XMLCite \textit{C. A. Mantica} and \textit{L. G. Molinari}, Colloq. Math. 167, No. 1, 63--72 (2022; Zbl 1486.53022) Full Text: DOI arXiv
Bakshi, M. Ray; Das, Ashoke; Baishya, K. K. Existence of hyper generalized weakly symmetric Lorentzian para-Sasakian manifold. (English) Zbl 1524.53076 Acta Univ. Apulensis, Math. Inform. 65, 51-66 (2021). MSC: 53C15 53C25 PDFBibTeX XMLCite \textit{M. R. Bakshi} et al., Acta Univ. Apulensis, Math. Inform. 65, 51--66 (2021; Zbl 1524.53076)
Mondal, Ashis \(\eta\)-Ricci solitons on para-Kenmotsu manifolds with some curvature conditions. (English) Zbl 1498.53069 Korean J. Math. 29, No. 4, 705-714 (2021). MSC: 53C25 53C21 53C15 PDFBibTeX XMLCite \textit{A. Mondal}, Korean J. Math. 29, No. 4, 705--714 (2021; Zbl 1498.53069) Full Text: DOI
Dey, Dibakar; Majhi, Pradip Sasakian 3-manifolds satisfying some curvature conditions associated to \(\mathcal{Z}\)-tensor. (English) Zbl 1497.53130 J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 28, No. 2, 143-153 (2021). MSC: 53D15 53C25 PDFBibTeX XMLCite \textit{D. Dey} and \textit{P. Majhi}, J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 28, No. 2, 143--153 (2021; Zbl 1497.53130) Full Text: DOI
Hazra, Dipankar Some results on mixed super quasi-Einstein manifolds satisfying certain vector fields. (English) Zbl 1499.53232 Facta Univ., Ser. Math. Inf. 36, No. 5, 1169-1179 (2021). MSC: 53C25 53B50 53C80 PDFBibTeX XMLCite \textit{D. Hazra}, Facta Univ., Ser. Math. Inf. 36, No. 5, 1169--1179 (2021; Zbl 1499.53232) Full Text: DOI
Ganguly, D.; Dey, S.; Bhattacharyya, A. On trans-Sasakian 3-manifolds as \(\eta \)-Einstein solitons. (English) Zbl 1494.53058 Carpathian Math. Publ. 13, No. 2, 460-474 (2021). Reviewer: Sunil Kumar Yadav (Gorakhpur) MSC: 53C25 53C15 53C21 PDFBibTeX XMLCite \textit{D. Ganguly} et al., Carpathian Math. Publ. 13, No. 2, 460--474 (2021; Zbl 1494.53058) Full Text: DOI arXiv OA License
Ali, Mohabbat; Vasiulla, Mohd Almost pseudo Ricci symmetric manifold admitting Schouten tensor. (English) Zbl 1499.53212 J. Dyn. Syst. Geom. Theor. 19, No. 2, 217-225 (2021). MSC: 53C25 PDFBibTeX XMLCite \textit{M. Ali} and \textit{M. Vasiulla}, J. Dyn. Syst. Geom. Theor. 19, No. 2, 217--225 (2021; Zbl 1499.53212) Full Text: DOI
Ali, Mohabbat; Khan, Quddus; Vasiulla, Mohd On special weakly symmetric Riemannian manifolds. (English) Zbl 1480.53049 Balan, Vladimir (ed.), Proceedings of the international conference on differential geometry and dynamical systems (DGDS-2020), Bucharest, Romania, August, 27–29, 2020. Bucharest: Geometry Balkan Press. BSG Proc. 28, 1-11 (2021). MSC: 53C20 53C21 53C25 PDFBibTeX XMLCite \textit{M. Ali} et al., BSG Proc. 28, 1--11 (2021; Zbl 1480.53049) Full Text: Link
Zhang, Jun; Khan, Gabriel Affine connections with torsion in (para-)complexified structures. (English) Zbl 1483.53052 Nielsen, Frank (ed.), Progress in information geometry. Theory and applications. Based on discussions of the fourth international conference on geometric science of information, GSI’2019, Toulouse, France, August 27–29, 2019. Cham: Springer. Signals Commun. Technol., 37-56 (2021). Reviewer: Yun Myung Oh (Berrien Springs) MSC: 53C15 53B12 PDFBibTeX XMLCite \textit{J. Zhang} and \textit{G. Khan}, in: Progress in information geometry. Theory and applications. Based on discussions of the fourth international conference on geometric science of information, GSI'2019, Toulouse, France, August 27--29, 2019. Cham: Springer. 37--56 (2021; Zbl 1483.53052) Full Text: DOI
Pandey, Shashikant; Singh, Abhishek; Mishra, Vishnu Narayan Eta-Ricci solitons on Lorentzian para-Kenmotsu manifolds. (English) Zbl 1488.53110 Facta Univ., Ser. Math. Inf. 36, No. 2, 419-434 (2021). MSC: 53C15 53C25 53C50 PDFBibTeX XMLCite \textit{S. Pandey} et al., Facta Univ., Ser. Math. Inf. 36, No. 2, 419--434 (2021; Zbl 1488.53110) Full Text: DOI
Zengin, Fusun Özen On a special type of almost pseudo Ricci symmetric manifold. (English) Zbl 1473.53061 Differ. Geom. Dyn. Syst. 23, 167-174 (2021). MSC: 53C15 53B25 53B05 53B15 PDFBibTeX XMLCite \textit{F. Ö. Zengin}, Differ. Geom. Dyn. Syst. 23, 167--174 (2021; Zbl 1473.53061) Full Text: Link
Kazemi Balgeshir, Mohammad Bagher; Salahvarzi, Shiva Curvatures of semi-symmetric metric connections on statistical manifolds. (English) Zbl 1471.53014 Commun. Korean Math. Soc. 36, No. 1, 149-164 (2021). MSC: 53B12 53B25 53C07 60D05 PDFBibTeX XMLCite \textit{M. B. Kazemi Balgeshir} and \textit{S. Salahvarzi}, Commun. Korean Math. Soc. 36, No. 1, 149--164 (2021; Zbl 1471.53014) Full Text: DOI
De, Krishnendu; De, Uday Chand Investigation of generalized \(\mathcal{Z}\)-recurrent spacetimes and \(f(\mathcal{R},T)\)-gravity. (English) Zbl 1466.83075 Adv. Appl. Clifford Algebr. 31, No. 3, Paper No. 38, 14 p. (2021). MSC: 83D05 83C20 83C55 83C56 83F05 53C25 PDFBibTeX XMLCite \textit{K. De} and \textit{U. C. De}, Adv. Appl. Clifford Algebr. 31, No. 3, Paper No. 38, 14 p. (2021; Zbl 1466.83075) Full Text: DOI
Singh, Rajeev Kumar; Prasad, B. On an extended recurrent Riemannian manifold. (English) Zbl 1524.53096 Gaṇita 70, No. 2, 227-237 (2020). MSC: 53C15 53C25 PDFBibTeX XMLCite \textit{R. K. Singh} and \textit{B. Prasad}, Gaṇita 70, No. 2, 227--237 (2020; Zbl 1524.53096) Full Text: Link
El-Sayied, Hoda K.; Mantica, Carlo A.; Shenawy, Sameh; Syied, Noha Gray’s decomposition on doubly warped product manifolds and applications. (English) Zbl 1499.53198 Filomat 34, No. 11, 3767-3776 (2020). MSC: 53C21 53C25 53C50 53C80 53C15 PDFBibTeX XMLCite \textit{H. K. El-Sayied} et al., Filomat 34, No. 11, 3767--3776 (2020; Zbl 1499.53198) Full Text: DOI arXiv
Kishor, Shyam; Singh, Abhishek \(\eta\)-Ricci solitons on 3-dimensional Kenmotsu manifolds. (English) Zbl 1488.53104 Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 13(62), No. 1, 209-218 (2020). MSC: 53C15 53C25 53D10 PDFBibTeX XMLCite \textit{S. Kishor} and \textit{A. Singh}, Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 13(62), No. 1, 209--218 (2020; Zbl 1488.53104) Full Text: DOI
Kim, Jaeman On almost quasi Ricci symmetric manifolds. (English) Zbl 1458.53026 Commun. Korean Math. Soc. 35, No. 2, 603-611 (2020). MSC: 53B20 53A55 PDFBibTeX XMLCite \textit{J. Kim}, Commun. Korean Math. Soc. 35, No. 2, 603--611 (2020; Zbl 1458.53026) Full Text: DOI
Rovenski, Vladimir; Stepanov, Sergey; Tsyganok, Irina On the geometry in the large of Lichnerowicz type Laplacians and its applications. (English) Zbl 1481.53048 Balkan J. Geom. Appl. 25, No. 2, 76-93 (2020). MSC: 53C20 53C21 53C24 PDFBibTeX XMLCite \textit{V. Rovenski} et al., Balkan J. Geom. Appl. 25, No. 2, 76--93 (2020; Zbl 1481.53048) Full Text: arXiv Link
Dey, Santu; Pal, Buddhadev; Bhattacharyya, Arindam Conformal mappings of generalized quasi-Einstein manifolds admitting special vector fields. (English) Zbl 1452.53045 Gulf J. Math. 9, No. 1, 27-41 (2020). MSC: 53C25 53C15 PDFBibTeX XMLCite \textit{S. Dey} et al., Gulf J. Math. 9, No. 1, 27--41 (2020; Zbl 1452.53045) Full Text: Link
Pokhariyal, Ganesh Prasad Study of \(P\)-curvature tensor and other related tensors. (English) Zbl 1446.53055 Differ. Geom. Dyn. Syst. 22, 202-207 (2020). MSC: 53C50 83C35 PDFBibTeX XMLCite \textit{G. P. Pokhariyal}, Differ. Geom. Dyn. Syst. 22, 202--207 (2020; Zbl 1446.53055) Full Text: Link
Mallick, Sahanous; De, Uday Chand; Suh, Young Jin Spacetimes with different forms of energy-momentum tensor. (English) Zbl 1435.53017 J. Geom. Phys. 151, Article ID 103622, 8 p. (2020). MSC: 53B30 53C50 53Z05 PDFBibTeX XMLCite \textit{S. Mallick} et al., J. Geom. Phys. 151, Article ID 103622, 8 p. (2020; Zbl 1435.53017) Full Text: DOI
Suh, Young Jin; De, Uday Chand On a type of spacetimes. (English) Zbl 1499.53094 Filomat 33, No. 13, 4251-4260 (2019). MSC: 53B30 53C25 53C50 53C80 PDFBibTeX XMLCite \textit{Y. J. Suh} and \textit{U. C. De}, Filomat 33, No. 13, 4251--4260 (2019; Zbl 1499.53094) Full Text: DOI
Dey, Santu; Pal, Buddhadev; Bhattacharyya, Arindam A non-flat Riemannian manifold admitting certain vectors fields. (English) Zbl 1499.53220 J. Dyn. Syst. Geom. Theor. 17, No. 2, 221-237 (2019). MSC: 53C25 53C15 PDFBibTeX XMLCite \textit{S. Dey} et al., J. Dyn. Syst. Geom. Theor. 17, No. 2, 221--237 (2019; Zbl 1499.53220) Full Text: DOI
Shaikh, A. A.; Hui, S. K.; Patra, A. On cyclic Ricci-recurrent spaces. (English) Zbl 1478.53028 J. Tensor Soc. (N.S.) 13, 45-59 (2019). MSC: 53B30 53C15 PDFBibTeX XMLCite \textit{A. A. Shaikh} et al., J. Tensor Soc. (N.S.) 13, 45--59 (2019; Zbl 1478.53028) Full Text: Link
Zengin, Fusun Ozen; Bektas, Ecem Almost pseudo Ricci symmetric manifold admitting \(W_2\)-Ricci tensor. (English) Zbl 1453.53019 Balkan J. Geom. Appl. 24, No. 2, 90-99 (2019). MSC: 53B20 53C15 53C25 PDFBibTeX XMLCite \textit{F. O. Zengin} and \textit{E. Bektas}, Balkan J. Geom. Appl. 24, No. 2, 90--99 (2019; Zbl 1453.53019) Full Text: Link
Kar, Debabrata; Majhi, Pradip Eta-Ricci solitons on LP-Sasakian manifolds. (English) Zbl 1431.53027 Rev. Unión Mat. Argent. 60, No. 2, 391-405 (2019). MSC: 53C15 53C25 PDFBibTeX XMLCite \textit{D. Kar} and \textit{P. Majhi}, Rev. Unión Mat. Argent. 60, No. 2, 391--405 (2019; Zbl 1431.53027)
Kim, Jongsu; Shin, Jinwoo Three dimensional \(m\)-quasi Einstein manifolds with degenerate Ricci tensor. (English) Zbl 1430.53050 Math. Nachr. 292, No. 8, 1727-1750 (2019). Reviewer: Andreas Arvanitoyeorgos (Patras) MSC: 53C21 53C25 PDFBibTeX XMLCite \textit{J. Kim} and \textit{J. Shin}, Math. Nachr. 292, No. 8, 1727--1750 (2019; Zbl 1430.53050) Full Text: DOI arXiv
Shandra, Igor G.; Stepanov, Sergey E.; Mikeš, Josef On higher-order Codazzi tensors on complete Riemannian manifolds. (English) Zbl 1432.53054 Ann. Global Anal. Geom. 56, No. 3, 429-442 (2019). Reviewer: Fernando Galaz-Garcia (Karlsruhe) MSC: 53C20 53C25 53C40 PDFBibTeX XMLCite \textit{I. G. Shandra} et al., Ann. Global Anal. Geom. 56, No. 3, 429--442 (2019; Zbl 1432.53054) Full Text: DOI arXiv
Haseeb, Abdul; De, Uday Chand \(\eta \)-Ricci solitons in \(\epsilon \)-Kenmotsu manifolds. (English) Zbl 1417.53032 J. Geom. 110, No. 2, Paper No. 34, 12 p. (2019). MSC: 53C15 53C25 PDFBibTeX XMLCite \textit{A. Haseeb} and \textit{U. C. De}, J. Geom. 110, No. 2, Paper No. 34, 12 p. (2019; Zbl 1417.53032) Full Text: DOI
Ghosh, Sujit \( \eta \)-Ricci solitons on quasi-Sasakian manifolds. (English) Zbl 1513.53150 An. Univ. Vest Timiș., Ser. Mat.-Inform. 56, No. 1, 73-85 (2018). MSC: 53E30 53C15 53C25 PDFBibTeX XMLCite \textit{S. Ghosh}, An. Univ. Vest Timiș., Ser. Mat.-Inform. 56, No. 1, 73--85 (2018; Zbl 1513.53150) Full Text: DOI OA License
De, Krishnendu; De, Uday Chand \( \eta \)-Ricci solitons on Kenmotsu 3-manifolds. (English) Zbl 1513.53148 An. Univ. Vest Timiș., Ser. Mat.-Inform. 56, No. 1, 51-63 (2018). MSC: 53E30 53C15 53C25 PDFBibTeX XMLCite \textit{K. De} and \textit{U. C. De}, An. Univ. Vest Timiș., Ser. Mat.-Inform. 56, No. 1, 51--63 (2018; Zbl 1513.53148) Full Text: DOI OA License
Makhal, Sourav Some results on generalized \((k,\mu)\)-paracontact metric manifolds. (English) Zbl 1474.53128 Facta Univ., Ser. Math. Inf. 33, No. 3, 401-408 (2018). MSC: 53C05 53D15 53C15 PDFBibTeX XMLCite \textit{S. Makhal}, Facta Univ., Ser. Math. Inf. 33, No. 3, 401--408 (2018; Zbl 1474.53128) Full Text: DOI
Chen, Gui-Qiang G.; Li, Siran Global weak rigidity of the Gauss-Codazzi-Ricci equations and isometric immersions of Riemannian manifolds with lower regularity. (English) Zbl 1407.53040 J. Geom. Anal. 28, No. 3, 1957-2007 (2018). MSC: 53C24 53C42 53C21 53C45 57R42 35M30 35B35 58A15 58J10 57R40 58A14 58A17 58A05 58K30 58Z05 PDFBibTeX XMLCite \textit{G.-Q. G. Chen} and \textit{S. Li}, J. Geom. Anal. 28, No. 3, 1957--2007 (2018; Zbl 1407.53040) Full Text: DOI arXiv OA License
Ghosh, Gopal; Majhi, Pradip; De, Uday Chand On a classification of almost Kenmotsu manifolds with generalized \((k,\mu)'\)-nullity distribution. (English) Zbl 1398.53056 Kyungpook Math. J. 58, No. 1, 137-148 (2018). MSC: 53C25 53C35 PDFBibTeX XMLCite \textit{G. Ghosh} et al., Kyungpook Math. J. 58, No. 1, 137--148 (2018; Zbl 1398.53056) Full Text: DOI
Kim, Jongsu; Shin, Jinwoo Four-dimensional static and related critical spaces with harmonic curvature. (English) Zbl 1394.53046 Pac. J. Math. 295, No. 2, 429-462 (2018). Reviewer: Marian Hotloś (Wrocław) MSC: 53C21 53C25 PDFBibTeX XMLCite \textit{J. Kim} and \textit{J. Shin}, Pac. J. Math. 295, No. 2, 429--462 (2018; Zbl 1394.53046) Full Text: DOI arXiv
Dey, S.; Bhattacharyya, A. Conformal mappings of mixed generalized quasi-Einstein manifolds admitting special vector fields. (English) Zbl 1392.53060 Extr. Math. 32, No. 2, 255-273 (2017). MSC: 53C25 53C15 PDFBibTeX XMLCite \textit{S. Dey} and \textit{A. Bhattacharyya}, Extr. Math. 32, No. 2, 255--273 (2017; Zbl 1392.53060)
Halder, Kalyan; Bhattacharyya, Arindam Some properties of generalized semi pseudo Ricci symmetric manifold. (English) Zbl 1377.53042 Palest. J. Math. 6, Spec. Iss. II, 348-354 (2017). MSC: 53C15 53C25 PDFBibTeX XMLCite \textit{K. Halder} and \textit{A. Bhattacharyya}, Palest. J. Math. 6, 348--354 (2017; Zbl 1377.53042) Full Text: Link
Nistor, Simona On biconservative surfaces. (English) Zbl 1372.53061 Differ. Geom. Appl. 54, Part B, 490-502 (2017). MSC: 53C42 53C40 PDFBibTeX XMLCite \textit{S. Nistor}, Differ. Geom. Appl. 54, Part B, 490--502 (2017; Zbl 1372.53061) Full Text: DOI arXiv
Mandal, K.; De, U. C. On 3-dimensional almost Kenmotsu manifolds admitting certain nullity distribution. (English) Zbl 1399.53081 Acta Math. Univ. Comen., New Ser. 86, No. 2, 215-226 (2017). Reviewer: Yaning Wang (Guangdong) MSC: 53C25 PDFBibTeX XMLCite \textit{K. Mandal} and \textit{U. C. De}, Acta Math. Univ. Comen., New Ser. 86, No. 2, 215--226 (2017; Zbl 1399.53081)
Kim, Jongsu On a classification of 4-d gradient Ricci solitons with harmonic Weyl curvature. (English) Zbl 1369.53026 J. Geom. Anal. 27, No. 2, 986-1012 (2017). MSC: 53C21 53C25 PDFBibTeX XMLCite \textit{J. Kim}, J. Geom. Anal. 27, No. 2, 986--1012 (2017; Zbl 1369.53026) Full Text: DOI arXiv
Ahsan, Zafar; Ali, Musavvir Curvature tensor for the spacetime of general relativity. (English) Zbl 1364.53072 Int. J. Geom. Methods Mod. Phys. 14, No. 5, Article ID 1750078, 13 p. (2017). MSC: 53C80 53C50 83C05 PDFBibTeX XMLCite \textit{Z. Ahsan} and \textit{M. Ali}, Int. J. Geom. Methods Mod. Phys. 14, No. 5, Article ID 1750078, 13 p. (2017; Zbl 1364.53072) Full Text: DOI arXiv
Mandal, Krishanu; De, U. C. Para-Sasakian manifolds satisfying certain curvature conditions. (English) Zbl 1342.53051 Lobachevskii J. Math. 37, No. 2, 146-154 (2016). MSC: 53C15 PDFBibTeX XMLCite \textit{K. Mandal} and \textit{U. C. De}, Lobachevskii J. Math. 37, No. 2, 146--154 (2016; Zbl 1342.53051) Full Text: DOI
Güler, Sinem; Demirbağ, Sezgin Altay On Ricci symmetric generalized quasi Einstein spacetimes. (English) Zbl 1349.53056 Miskolc Math. Notes 16, No. 2, 853-868 (2016). MSC: 53C15 53C25 53B15 53B20 PDFBibTeX XMLCite \textit{S. Güler} and \textit{S. A. Demirbağ}, Miskolc Math. Notes 16, No. 2, 853--868 (2016; Zbl 1349.53056) Full Text: DOI
De, Uday Chand; Mallick, Sahanous On generalized quasi-Einstein manifolds admitting certain vector fields. (English) Zbl 1474.53223 Filomat 29, No. 3, 599-609 (2015). MSC: 53C25 53C35 PDFBibTeX XMLCite \textit{U. C. De} and \textit{S. Mallick}, Filomat 29, No. 3, 599--609 (2015; Zbl 1474.53223) Full Text: DOI
Kırık, Bahar; Zengin, Füsun Özen Conformal mappings of quasi-Einstein manifolds admitting special vector fields. (English) Zbl 1474.53080 Filomat 29, No. 3, 525-534 (2015). MSC: 53B20 53C25 PDFBibTeX XMLCite \textit{B. Kırık} and \textit{F. Ö. Zengin}, Filomat 29, No. 3, 525--534 (2015; Zbl 1474.53080) Full Text: DOI
Bonsante, Francesco; Mondello, Gabriele; Schlenker, Jean-Marc A cyclic extension of the earthquake flow. II. (Une extension cyclique du flot des tremblements de terre. II.) (English. French summary) Zbl 1359.37079 Ann. Sci. Éc. Norm. Supér. (4) 48, No. 4, 811-859 (2015). Reviewer: Ion Mihai (Bucureşti) MSC: 37D40 83C80 37J05 32G15 53C25 PDFBibTeX XMLCite \textit{F. Bonsante} et al., Ann. Sci. Éc. Norm. Supér. (4) 48, No. 4, 811--859 (2015; Zbl 1359.37079) Full Text: DOI arXiv Link Link
Guo, Shun Zi Operator \(\square^{r}\) on a submanifold of Riemannian manifold and its applications. (English) Zbl 1331.53080 Armen. J. Math. 7, No. 1, 6-31 (2015). MSC: 53C40 PDFBibTeX XMLCite \textit{S. Z. Guo}, Armen. J. Math. 7, No. 1, 6--31 (2015; Zbl 1331.53080) Full Text: Link
Kirik, Bahar; Zengín, Füsun Özen Generalized quasi-einstein manifolds admitting special vector fields. (English) Zbl 1340.53025 Acta Math. Acad. Paedagog. Nyházi. (N.S.) 31, No. 1, 61-69 (2015). MSC: 53B20 53C25 PDFBibTeX XMLCite \textit{B. Kirik} and \textit{F. Ö. Zengín}, Acta Math. Acad. Paedagog. Nyházi. (N.S.) 31, No. 1, 61--69 (2015; Zbl 1340.53025)
Calviño-Louzao, E.; García-Río, E.; Seoane-Bascoy, J.; Vázquez-Lorenzo, R. Three-dimensional manifolds with special Cotton tensor. (English) Zbl 1320.53084 Int. J. Geom. Methods Mod. Phys. 12, No. 1, Article ID 1550005, 16 p. (2015). Reviewer: Wolfgang Kühnel (Stuttgart) MSC: 53C50 53B30 PDFBibTeX XMLCite \textit{E. Calviño-Louzao} et al., Int. J. Geom. Methods Mod. Phys. 12, No. 1, Article ID 1550005, 16 p. (2015; Zbl 1320.53084) Full Text: DOI
Cho, Kyusuk; Lee, Hyunjin; Pak, Eunmi Real hypersurfaces in complex two-plane Grassmannians whose shape operator is of codazzi type in generalized Tanaka-Webster connection. (English) Zbl 1309.53044 Bull. Korean Math. Soc. 52, No. 1, 57-68 (2015). MSC: 53C40 53C15 PDFBibTeX XMLCite \textit{K. Cho} et al., Bull. Korean Math. Soc. 52, No. 1, 57--68 (2015; Zbl 1309.53044) Full Text: DOI Link
Güler, Sinem; Altay Demirbağ, Sezgin Conformally flat special generalized quasi-Einstein spacetimes. (English) Zbl 1342.53034 Tensor, New Ser. 75, No. 1, 61-71 (2014). MSC: 53B30 83C10 PDFBibTeX XMLCite \textit{S. Güler} and \textit{S. Altay Demirbağ}, Tensor, New Ser. 75, No. 1, 61--71 (2014; Zbl 1342.53034)
Theofanidis, Th.; Xenos, Ph. J. Real hypersurfaces of non-flat complex space forms equipped with Jacobi structure operator of Codazzi type. (English) Zbl 1295.53059 Houston J. Math. 40, No. 1, 97-107 (2014). MSC: 53C40 53D15 PDFBibTeX XMLCite \textit{Th. Theofanidis} and \textit{Ph. J. Xenos}, Houston J. Math. 40, No. 1, 97--107 (2014; Zbl 1295.53059)
Mallick, Sahanous; De, Avik; De, Uday Chand On generalized Ricci recurrent manifolds with applications to relativity. (English) Zbl 1325.53061 Proc. Natl. Acad. Sci. India, Sect. A, Phys. Sci. 83, No. 2, 143-152 (2013). MSC: 53C25 53C80 PDFBibTeX XMLCite \textit{S. Mallick} et al., Proc. Natl. Acad. Sci. India, Sect. A, Phys. Sci. 83, No. 2, 143--152 (2013; Zbl 1325.53061) Full Text: DOI
Merton, Gabe Codazzi tensors with two eigenvalue functions. (English) Zbl 1282.53013 Proc. Am. Math. Soc. 141, No. 9, 3265-3273 (2013). Reviewer: Marco Modugno (Firenze) MSC: 53A45 53B20 PDFBibTeX XMLCite \textit{G. Merton}, Proc. Am. Math. Soc. 141, No. 9, 3265--3273 (2013; Zbl 1282.53013) Full Text: DOI arXiv
Suh, Young Jin Real hypersurfaces in complex two-plane Grassmannians with parallel Ricci tensor. (English) Zbl 1293.53071 Proc. R. Soc. Edinb., Sect. A, Math. 142, No. 6, 1309-1324 (2012). MSC: 53C40 53C30 PDFBibTeX XMLCite \textit{Y. J. Suh}, Proc. R. Soc. Edinb., Sect. A, Math. 142, No. 6, 1309--1324 (2012; Zbl 1293.53071) Full Text: DOI
Tarafdar, Manjusha; Das, Bandana; Bhattacharyya, Arindam On indefinite \(\eta \)-Einstein Sasakian manifold. (English) Zbl 1255.53019 Lobachevskii J. Math. 33, No. 1, 28-32 (2012). MSC: 53B30 53C25 PDFBibTeX XMLCite \textit{M. Tarafdar} et al., Lobachevskii J. Math. 33, No. 1, 28--32 (2012; Zbl 1255.53019) Full Text: DOI
Mantica, Carlo Alberto; Molinari, Luca Guido Riemann compatible tensors. (English) Zbl 1276.53016 Colloq. Math. 128, No. 2, 197-210 (2012). MSC: 53B20 53B21 PDFBibTeX XMLCite \textit{C. A. Mantica} and \textit{L. G. Molinari}, Colloq. Math. 128, No. 2, 197--210 (2012; Zbl 1276.53016) Full Text: DOI arXiv
Bello, Eliza L.; Lemence, Richard S.; Leyson, Dennis T. Some results on pseudo generalized quasi-Einstein spaces. (English) Zbl 1252.53055 Int. Math. Forum 7, No. 25-28, 1241-1247 (2012). MSC: 53C25 53C30 PDFBibTeX XMLCite \textit{E. L. Bello} et al., Int. Math. Forum 7, No. 25--28, 1241--1247 (2012; Zbl 1252.53055) Full Text: Link
Mantica, Carlo Alberto; Molinari, Luca Guido Extended Derdziński-Shen theorem for curvature tensors. (English) Zbl 1269.53018 Colloq. Math. 128, No. 1, 1-6 (2012). Reviewer: Zdeněk Dušek (Hradec Kralove) MSC: 53B20 53B21 PDFBibTeX XMLCite \textit{C. A. Mantica} and \textit{L. G. Molinari}, Colloq. Math. 128, No. 1, 1--6 (2012; Zbl 1269.53018) Full Text: DOI arXiv
Habib, Georges; Roth, Julien Skew Killing spinors. (English) Zbl 1246.53069 Cent. Eur. J. Math. 10, No. 3, 844-856 (2012). Reviewer: Peter Kraut (Erlabrunn) MSC: 53C27 PDFBibTeX XMLCite \textit{G. Habib} and \textit{J. Roth}, Cent. Eur. J. Math. 10, No. 3, 844--856 (2012; Zbl 1246.53069) Full Text: DOI arXiv
Zengın, Füsun Özen On pseudo M-projective Ricci symmetric manifolds. (English) Zbl 1244.53020 Int. J. Pure Appl. Math. 72, No. 2, 249-258 (2011). MSC: 53B20 PDFBibTeX XMLCite \textit{F. Ö. Zengın}, Int. J. Pure Appl. Math. 72, No. 2, 249--258 (2011; Zbl 1244.53020) Full Text: Link
Shaikh, Absos Ali; Kim, Young Ho; Hui, Shyamal Kumar On Lorentzian quasi-Einstein manifolds. (English) Zbl 1219.53026 J. Korean Math. Soc. 48, No. 4, 669-689 (2011); erratum ibid. 48, No. 6, 1327-1328 (2011). MSC: 53B30 53B50 53C50 53C80 83D05 PDFBibTeX XMLCite \textit{A. A. Shaikh} et al., J. Korean Math. Soc. 48, No. 4, 669--689 (2011; Zbl 1219.53026) Full Text: DOI
Calvaruso, G. Constructing metrics with prescribed geometry. (English) Zbl 1222.53038 Loubeau, E. (ed.) et al., Harmonic maps and differential geometry. A harmonic map fest in honour of John C. Wood’s 60th birthday, Cagliari, Italy, September 7–10, 2009. Providence, RI: American Mathematical Society (AMS) (ISBN 978-0-8218-4987-3/pbk). Contemporary Mathematics 542, 177-185 (2011). Reviewer: Constantin Călin (Iaşi) MSC: 53C20 53C25 PDFBibTeX XMLCite \textit{G. Calvaruso}, Contemp. Math. 542, 177--185 (2011; Zbl 1222.53038)
Calvaruso, Giovanni Riemannian 3-metrics with a generic Codazzi Ricci tensor. (English) Zbl 1218.53015 Geom. Dedicata 151, 259-267 (2011). MSC: 53B20 53C25 PDFBibTeX XMLCite \textit{G. Calvaruso}, Geom. Dedicata 151, 259--267 (2011; Zbl 1218.53015) Full Text: DOI
Prakasha, D. G.; Bagewadi, C. S. On nearly quasi-Einstein manifolds. (English) Zbl 1240.53032 Math. Pannonica 21, No. 2, 265-273 (2010). Reviewer: Vladimir Balan (Bucharest) MSC: 53B30 53B50 53C50 53C80 53D05 PDFBibTeX XMLCite \textit{D. G. Prakasha} and \textit{C. S. Bagewadi}, Math. Pannonica 21, No. 2, 265--273 (2010; Zbl 1240.53032)
Ahmad, Mobin; Jun, Jae Bok Submanifolds of an almost \(r\)-paracontact Riemannian manifold endowed with a semi-symmetric metric connection. (English) Zbl 1216.53027 Honam Math. J. 32, No. 3, 363-374 (2010). MSC: 53C05 53C15 53B25 PDFBibTeX XMLCite \textit{M. Ahmad} and \textit{J. B. Jun}, Honam Math. J. 32, No. 3, 363--374 (2010; Zbl 1216.53027) Full Text: DOI
Chen, Gui-Qiang; Slemrod, Marshall; Wang, Dehua Weak continuity of the Gauss-Codazzi-Ricci system for isometric embedding. (English) Zbl 1194.53047 Proc. Am. Math. Soc. 138, No. 5, 1843-1852 (2010). Reviewer: James Hebda (St. Louis) MSC: 53C40 53C21 53C45 35L65 35M10 35B35 53C24 57R40 57R42 58J32 PDFBibTeX XMLCite \textit{G.-Q. Chen} et al., Proc. Am. Math. Soc. 138, No. 5, 1843--1852 (2010; Zbl 1194.53047) Full Text: DOI arXiv
Hui, Shyamal Kumar; Shaikh, Absos Ali; Yoon, Dae Won On quasi-Einstein spacetimes. (English) Zbl 1213.53027 Tsukuba J. Math. 33, No. 2, 305-326 (2009). Reviewer: James W. Cannon (Provo) MSC: 53B30 53B50 83D05 PDFBibTeX XMLCite \textit{S. K. Hui} et al., Tsukuba J. Math. 33, No. 2, 305--326 (2009; Zbl 1213.53027) Full Text: DOI Euclid
Ahsan, Zafar; Siddiqui, Shah Alam Concircular curvature tensor and fluid spacetimes. (English) Zbl 1255.83110 Int. J. Theor. Phys. 48, No. 11, 3202-3212 (2009). MSC: 83E05 83C15 53Z05 PDFBibTeX XMLCite \textit{Z. Ahsan} and \textit{S. A. Siddiqui}, Int. J. Theor. Phys. 48, No. 11, 3202--3212 (2009; Zbl 1255.83110) Full Text: DOI
Shaikh, Absos Ali; Hui, Shyamal Kumar On pseudo cyclic Ricci symmetric manifolds. (English) Zbl 1184.53027 Asian-Eur. J. Math. 2, No. 2, 227-237 (2009). Reviewer: A. D. Osborne (Keele) MSC: 53B30 53B50 53C15 53C25 PDFBibTeX XMLCite \textit{A. A. Shaikh} and \textit{S. K. Hui}, Asian-Eur. J. Math. 2, No. 2, 227--237 (2009; Zbl 1184.53027) Full Text: DOI
Shaikh, Absos Ali; Binh, Tran Quoc On some class of Riemann manifolds. (English) Zbl 1289.53104 Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 1(50), 351-362 (2008). MSC: 53C25 53C35 PDFBibTeX XMLCite \textit{A. A. Shaikh} and \textit{T. Q. Binh}, Bull. Transilv. Univ. Brașov, Ser. III, Math. Inform. Phys. 1(50), 351--362 (2008; Zbl 1289.53104)
Kim, Un Kyu On a class of almost contact metric manifolds. (English) Zbl 1163.53019 JP J. Geom. Topol. 8, No. 2, 185-201 (2008). MSC: 53C15 53D10 PDFBibTeX XMLCite \textit{U. K. Kim}, JP J. Geom. Topol. 8, No. 2, 185--201 (2008; Zbl 1163.53019) Full Text: Link
Abe, Naoto; Hasegawa, Kazuyuki A generalization of Cartan’s identities for isoparametric hypersurfaces and its applications. (English) Zbl 1213.53073 Result. Math. 52, No. 3-4, 197-210 (2008). MSC: 53C42 53C15 53A15 58A30 PDFBibTeX XMLCite \textit{N. Abe} and \textit{K. Hasegawa}, Result. Math. 52, No. 3--4, 197--210 (2008; Zbl 1213.53073) Full Text: DOI
Besse, Arthur L. Einstein manifolds. Reprint of the 1987 edition. (English) Zbl 1147.53001 Classics in Mathematics. Berlin: Springer (ISBN 978-3-540-74120-6/pbk). xii, 516 p. (2008). Reviewer: Adela-Gabriela Mihai (Bucureşti) MSC: 53-02 53C25 53C55 53C30 58J60 53C20 PDFBibTeX XMLCite \textit{A. L. Besse}, Einstein manifolds. Reprint of the 1987 edition. Berlin: Springer (2008; Zbl 1147.53001)
Simon, Udo Schouten curvature functions on conformally flat manifolds. (English) Zbl 1197.53048 Bull. Transilv. Univ. Brașov, Ser. B (N.S.) 14(49), Suppl., 293-314 (2007). MSC: 53C20 53A15 53C21 PDFBibTeX XMLCite \textit{U. Simon}, Bull. Transilv. Univ. Brașov, Ser. B (N.S.) 14(49), 293--314 (2007; Zbl 1197.53048)
Reshetnyak, Yuri G. On the stability in Bonnet’s theorem of the surface theory. (English) Zbl 1144.53011 Georgian Math. J. 14, No. 3, 543-564 (2007). Reviewer: Hans Sachs (Leoben) MSC: 53A05 PDFBibTeX XMLCite \textit{Y. G. Reshetnyak}, Georgian Math. J. 14, No. 3, 543--564 (2007; Zbl 1144.53011)
Pyo, Yong-Soo On cyclic parallel Ricci-like tensors. (English) Zbl 1138.53303 Math. Sci. Res. J. 10, No. 9, 236-248 (2006). MSC: 53C20 PDFBibTeX XMLCite \textit{Y.-S. Pyo}, Math. Sci. Res. J. 10, No. 9, 236--248 (2006; Zbl 1138.53303)
Kim, Un Kyu Conformally flat generalized Sasakian-space-forms and locally symmetric generalized Sasakian-space-forms. (English) Zbl 1118.53025 Note Mat. 26, No. 1, 55-67 (2006). Reviewer: D. Perrone (Lecce) MSC: 53C25 53C15 53D15 PDFBibTeX XMLCite \textit{U. K. Kim}, Note Mat. 26, No. 1, 55--67 (2006; Zbl 1118.53025)
Tojeiro, Ruy Conformal de Rham decomposition of Riemannian manifolds. (English) Zbl 1116.53044 Houston J. Math. 32, No. 3, 725-743 (2006). Reviewer: Thomas Püttmann (Bonn) MSC: 53C50 53C15 53C12 PDFBibTeX XMLCite \textit{R. Tojeiro}, Houston J. Math. 32, No. 3, 725--743 (2006; Zbl 1116.53044) Full Text: arXiv
Padilla, Antonio A covariant approach to braneworld holography. (English) Zbl 1148.83021 Classical Quantum Gravity 23, No. 11, 3983-3992 (2006). Reviewer: Alex Gaina (Chisinau) MSC: 83E15 PDFBibTeX XMLCite \textit{A. Padilla}, Classical Quantum Gravity 23, No. 11, 3983--3992 (2006; Zbl 1148.83021) Full Text: DOI arXiv
Yaşar, Erol; Cöken, A. Ceylan; Yücesan, Ahmet Totally umbilical lightlike hypersurfaces in semi-Riemannian manifold with semi-symmetric metric connection. (English) Zbl 1093.53026 Int. J. Pure Appl. Math. 23, No. 3, 379-391 (2005). Reviewer: Lew Friedland (Geneseo) MSC: 53B25 53B30 53B15 53C05 PDFBibTeX XMLCite \textit{E. Yaşar} et al., Int. J. Pure Appl. Math. 23, No. 3, 379--391 (2005; Zbl 1093.53026)
De, U. C.; Biswas, Sudipta On \(K\)-contact \(\eta\)-Einstein manifolds. (English) Zbl 1150.53334 Bull. Math. Soc. Sci. Math. Roum., Nouv. Sér. 48(96), No. 3, 295-301 (2005). MSC: 53C25 53D10 PDFBibTeX XMLCite \textit{U. C. De} and \textit{S. Biswas}, Bull. Math. Soc. Sci. Math. Roum., Nouv. Sér. 48(96), No. 3, 295--301 (2005; Zbl 1150.53334)
Stepanov, S. E.; Shandra, I. G. Seven classes of harmonic diffeomorphisms. (English. Russian original) Zbl 1126.53312 Math. Notes 74, No. 5, 708-716 (2003); translation from Mat. Zametki 74, No. 5, 752-761 (2003). Reviewer: Andreas Gastel (Erlangen) MSC: 53C43 37C05 58E20 PDFBibTeX XMLCite \textit{S. E. Stepanov} and \textit{I. G. Shandra}, Math. Notes 74, No. 5, 708--716 (2003; Zbl 1126.53312); translation from Mat. Zametki 74, No. 5, 752--761 (2003) Full Text: DOI
Dajczer, Marcos; Tojeiro, Ruy Commuting Codazzi tensors and the Ribaucour transformation for submanifolds. (English) Zbl 1055.53010 Result. Math. 44, No. 3-4, 258-278 (2003). Reviewer: Luc Vrancken (Valenciennes) MSC: 53B25 58J72 PDFBibTeX XMLCite \textit{M. Dajczer} and \textit{R. Tojeiro}, Result. Math. 44, No. 3--4, 258--278 (2003; Zbl 1055.53010) Full Text: DOI
Sharma, Ramesh Contact hypersurfaces of Kähler manifolds. (English) Zbl 1053.53040 J. Geom. 78, No. 1-2, 156-167 (2003). Reviewer: Paweł Walczak (Łódz) MSC: 53C42 53C15 53C55 PDFBibTeX XMLCite \textit{R. Sharma}, J. Geom. 78, No. 1--2, 156--167 (2003; Zbl 1053.53040) Full Text: DOI