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Found 142 Documents (Results 1–100)

Determination of characteristically nilpotent Lie algebras. (English) Zbl 1125.17307

Tsagas, Grigorios (ed.), Proceedings of the conference on applied differential geometry and general relativity and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 2002. Bucharest: Geometry Balkan Press; Bucharest: Balkan Society of Geometers (ISBN 973-8381-08-8/pbk). BSG Proceedings 11, 141-152 (2004).
MSC:  17B30
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The spectrum of the Laplace operator for the manifold \(SO(2p+2q+1)/SO(2p)\times SO(2q+1)\). (English) Zbl 1069.58019

Tsagas, Grigorios (ed.), Proceedings of the conference on applied differential geometry and general relativity and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 2001. Bucharest: Geometry Balkan Press; Bucharest: Balkan Society of Geometers (ISBN 973-8381-07-X/pbk). BSG Proceedings 10, 188-196 (2004).
MSC:  58J50
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Classification of isounits. (English) Zbl 1405.17061

Tsagas, Grigorios (ed.), Proceedings of the conference on applied differential geometry and general relativity and the workshop on global analysis, differential geometry and Lie algebras, Aristotle University of Thessaloniki, Greece, August 27 – September 1, 2000. Bucharest: Geometry Balkan Press; Bucharest: Balkan Society of Geometers (ISBN 973-8381-06-1). BSG Proceedings 9, 187-190 (2003).
MSC:  17D99
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Unification of the Lie algebras \(so(p,q)\), \(p+q=n\), \(p=1,\dots,n\), \(q=0,\dots,n\). (English) Zbl 1404.17016

Tsagas, Grigorios (ed.), Proceedings of the conference on applied differential geometry and general relativity and the workshop on global analysis, differential geometry and Lie algebras, Aristotle University of Thessaloniki, Greece, August 27 – September 1, 2000. Bucharest: Geometry Balkan Press; Bucharest: Balkan Society of Geometers (ISBN 973-8381-06-1). BSG Proceedings 9, 184-186 (2003).
MSC:  17B20
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Unification of the Lie algebras \(u(p,q)\). (English) Zbl 1404.17015

Tsagas, Grigorios (ed.), Proceedings of the conference on applied differential geometry and general relativity and the workshop on global analysis, differential geometry and Lie algebras, Aristotle University of Thessaloniki, Greece, August 27 – September 1, 2000. Bucharest: Geometry Balkan Press; Bucharest: Balkan Society of Geometers (ISBN 973-8381-06-1). BSG Proceedings 9, 176-183 (2003).
MSC:  17B20
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On the harmonic and Killing tensor fields on a compact Riemannian manifold. (English) Zbl 1404.53051

Tsagas, Grigorios (ed.), Proceedings of the conference on applied differential geometry and general relativity and the workshop on global analysis, differential geometry and Lie algebras, Aristotle University of Thessaloniki, Greece, August 27 – September 1, 2000. Bucharest: Geometry Balkan Press; Bucharest: Balkan Society of Geometers (ISBN 973-8381-06-1). BSG Proceedings 9, 165-175 (2003).
MSC:  53C20
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On the Killing tensor fields on a compact Riemannian manifold. (English) Zbl 1404.53050

Tsagas, Grigorios (ed.), Proceedings of the conference on applied differential geometry and general relativity and the workshop on global analysis, differential geometry and Lie algebras, Aristotle University of Thessaloniki, Greece, August 27 – September 1, 2000. Bucharest: Geometry Balkan Press; Bucharest: Balkan Society of Geometers (ISBN 973-8381-06-1). BSG Proceedings 9, 158-164 (2003).
MSC:  53C20
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Special vector fields on a compact Riemannian manifold. Reprints. (English) Zbl 1161.53342

Tsagas, Grigorios (ed.), Applied mathematics. Selected papers from the international congress, Thessaloniki, Greece, August 16–21, 1976. Bucharest: Fair Partners Publishers (ISBN 973-99985-6-9/pbk). Handb., Treatises, Monogr. 28, 131-138 (2002).
MSC:  53C20
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A family of metrics with strictly positive sectional curvature on a Riemannian manifold. (English) Zbl 1031.53040

Tsagas, Grigorios (ed.), Proceedings of the conference on geometry and its applications in technology and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 1999. Bucharest: Geometry Balkan Press. BSG Proc. 6, 226-238 (2001).
MSC:  53B21
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Elements of isoanalysis on \(\hat{\mathfrak R}^n\) isostructures on \(\hat{\mathfrak R}^n\). (English) Zbl 1022.58003

Tsagas, Grigorios (ed.), Proceedings of the conference on geometry and its applications in technology and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 1999. Bucharest: Geometry Balkan Press. BSG Proc. 6, 220-225 (2001).
MSC:  58A99 53A99
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Special systems of partial differential equations. (English) Zbl 1018.35016

Tsagas, Grigorios (ed.), Proceedings of the conference on geometry and its applications in technology and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 1999. Bucharest: Geometry Balkan Press. BSG Proc. 6, 213-219 (2001).
MSC:  35F20 17B25 22E60
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Conformally flat manifolds and spectra of elliptic operators. (English) Zbl 1022.58015

Tsagas, Grigorios (ed.), Proceedings of the conference on geometry and its applications in technology and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 1999. Bucharest: Geometry Balkan Press. BSG Proc. 6, 206-212 (2001).
MSC:  58J53 58J50
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Nilpotent Lie algebras of maximal rank and of type \(F_4\) as an associated generalized Cartan matrix. (English) Zbl 1039.17010

Tsagas, Grigorios (ed.), Proceedings of the conference on geometry and its applications in technology and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 1999. Bucharest: Geometry Balkan Press (ISBN 973-99669-9-3/pbk). BSG Proc. 6, 176-205 (2001).
MSC:  17B30
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Gravito-radiative force (detection of gravitational waves). (English) Zbl 1033.83012

Tsagas, Grigorios (ed.) et al., Proceedings of the conference on geometry and its applications in technology and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 1999. Bucharest: Geometry Balkan Press (ISBN 973-99669-9-3/pbk). BSG Proc. 6, 148-157 (2001).
MSC:  83C35 83B05
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Elimination of concealed isomorphic Lie algebras from nilpotent Lie algebras of dimension eight whose maximum Abelian ideal is of dimension five. (English) Zbl 1039.17009

Tsagas, Grigorios (ed.), Proceedings of the conference on geometry and its applications in technology and the workshop on global analysis, differential geometry and Lie algebras, Thessaloniki, Greece, 1999. Bucharest: Geometry Balkan Press (ISBN 973-99669-9-3/pbk). BSG Proc. 6, 115-120 (2001).
MSC:  17B30
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Structure of the isounits. (English) Zbl 1087.17503

Tsagas, Grigorios (ed.), Proceedings of the workshop on global analysis, differential geometry, Lie algebras, Thessaloniki, Greece, July 1997. Bucharest: Geometry Balkan Press (ISBN 973-99669-6-9/pbk). BSG Proc. 5, 130-137 (2001).
MSC:  17A99
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Spectra and foliation. (English) Zbl 1087.53506

Tsagas, Grigorios (ed.), Proceedings of the workshop on global analysis, differential geometry, Lie algebras, Thessaloniki, Greece, July 1997. Bucharest: Geometry Balkan Press (ISBN 973-99669-6-9/pbk). BSG Proc. 5, 108-116 (2001).
MSC:  53C12 58J50
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Connection between differential equations and differential geometry. (English) Zbl 0943.35011

Bainov, D. (ed.), Proceedings of the 9th international colloquium on differential equations, Plovdiv, Bulgaria, August 18-23, 1998. Utrecht: VSP. 427-430 (1999).
MSC:  35F30 53A05
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Symmetric invariant non-degenerate bilinear forms on nilpotent Lie algebras. (English) Zbl 0949.17004

Tsagas, Grigorios (ed.), Proceedings of the workshop on global analysis, differential geometry, Lie algebras, Aristotle University of Thessaloniki, Greece, October 21-25, 1996. Bucharest: Geometry Balkan Press. BSG Proc. 3, 124-129 (1999).
MSC:  17B30
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Relation between topology and the Killing vector fields. (English) Zbl 0943.53025

Tsagas, Grigorios (ed.), Proceedings of the workshop on global analysis, differential geometry, Lie algebras, Aristotle University of Thessaloniki, Greece, October 21-25, 1996. Bucharest: Geometry Balkan Press. BSG Proc. 3, 115-123 (1999).
MSC:  53C20
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Hyperbolic Kac-Moody algebras. (English) Zbl 1050.17501

Tsagas, Grigorios (ed.), Proceedings of the workshop on global analysis, differential geometry, Lie algebras, Aristotle University of Thessaloniki, Greece, October 21–25, 1996. Bucharest: Geometry Balkan Press (ISBN 973-98814-5-9/pbk). BSG Proc. 3, 104-107 (1999).
MSC:  17B30
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Special rectilinear congruences. (English) Zbl 0880.53006

Tsagas, Grigorios T. (ed.), New frontiers in algebras, groups and geometries. Proceedings of the international workshop, Molise, Italy, August 9–12, 1995. Palm Harbor, FL: Hadronic Press. Series on New Frontiers in Advanced Mathematics. 317-326 (1996).
Reviewer: F.Manhart (Wien)
MSC:  53A05 53-04
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Special nilpotent Lie algebras. (English) Zbl 0887.17005

Tsagas, Grigorios T. (ed.), New frontiers in algebras, groups and geometries. Proceedings of the international workshop, Molise, Italy, August 9–12, 1995. Palm Harbor, FL: Hadronic Press. Series on New Frontiers in Advanced Mathematics. 139-153 (1996).
Reviewer: M.Boral (Adana)
MSC:  17B30 17B67
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