Welling, M. Explicit solutions for point particles and black holes in spaces of constant curvature in \(2+1-D\) gravity. (English) Zbl 0917.53039 Nucl. Phys., B 515, No. 1-2, 436-452 (1998). MSC: 53Z05 83F05 83C57 PDFBibTeX XMLCite \textit{M. Welling}, Nucl. Phys., B 515, No. 1--2, 436--452 (1998; Zbl 0917.53039) Full Text: DOI arXiv
Welling, M. Two-particle quantum mechanics in \(2+1\) gravity using non-commuting coordinates. (English) Zbl 0904.53056 Classical Quantum Gravity 14, No. 12, 3313-3326 (1997). MSC: 53Z05 81T20 81T40 83C47 81V17 PDFBibTeX XMLCite \textit{M. Welling}, Classical Quantum Gravity 14, No. 12, 3313--3326 (1997; Zbl 0904.53056) Full Text: DOI arXiv
Welling, M. The torus universe in the polygon approach to \((2+1)\)-dimensional gravity. (English) Zbl 0872.53064 Classical Quantum Gravity 14, No. 4, 929-943 (1997). MSC: 53Z05 83C27 PDFBibTeX XMLCite \textit{M. Welling}, Classical Quantum Gravity 14, No. 4, 929--943 (1997; Zbl 0872.53064) Full Text: DOI arXiv
Welling, M.; Bijlsma, M. The Pauli-Lubanski scalar in the polygon approach to \((2+1)\)-dimensional gravity. (English) Zbl 0858.53070 Classical Quantum Gravity 13, No. 7, 1769-1774 (1996). MSC: 53Z05 83C27 PDFBibTeX XMLCite \textit{M. Welling} and \textit{M. Bijlsma}, Classical Quantum Gravity 13, No. 7, 1769--1774 (1996; Zbl 0858.53070) Full Text: DOI arXiv
Welling, M. Gravity in \(2+1\) dimensions as a Riemann-Hilbert problem. (English) Zbl 0851.53062 Classical Quantum Gravity 13, No. 4, 653-679 (1996). MSC: 53Z05 83C15 PDFBibTeX XMLCite \textit{M. Welling}, Classical Quantum Gravity 13, No. 4, 653--679 (1996; Zbl 0851.53062) Full Text: DOI arXiv