Geir Ellingsrud

• Ellingsrud, Geir & Lehn, Manfred (1999). Irreducibility of the punctual quotient scheme of a surface. Arkiv för matematik. ISSN 0004-2080. 37(2), p. 245–254. Full text in Research Archive
• Ellingsrud, Geir; Piene, Ragni & Strømme, Stein Arild (1987). On the variety of nets of quadrics defining twisted cubics. In Ghione, Franco; Peskine, Christian & Sernesi, Edoardo (Ed.), Space Curves. Springer. ISSN 9783540180203. p. 84–96. Full text in Research Archive

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• Braarvig, Jens; Ellingsrud, Geir; Heli, Ulla; Roll-Hansen, Nils & Natvig, Bent (2002). To kulturer? : forholdet mellom humanistiske og naturvitenskapelige tradisjoner. Pax Forlag. ISBN 9788253022659. 161 p. Full text in Research Archive
• Ellingsrud, Geir & Strømme, Eli (2001). Ånden i blekkhuset. omnipax. ISBN 9788253022871. 144 p. Full text in Research Archive
• Ellingsrud, Geir; Fulton, William & Vistoli, Angelo (2000). Recent Progress in Intersection Theory. Birkhäuser. ISBN 9780817641221. 327 p. Full text in Research Archive
• Ellingsrud, Geir & Strømme, Kristin (1999). Lykkehjulet. NKS-forlaget. ISBN 9788250818453. 245 p. Full text in Research Archive
• Ellingsrud, Geir; Hag, Kari; Johansen, Nils Voje & Holden, Ingvil (1999). Teller Matte? Norsk matematikkråd. ISBN 9788253021485. 96 p. Full text in Research Archive Show summary

  En bok rettet mot elever på videregående med formål å stimulere til å ta mye matematikk

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• Ellingsrud, Geir & Hove, Knut (2009). Untitled. Mycorrhiza. ISSN 0940-6360. p. 215–215. Full text in Research Archive
• Ellingsrud, Geir & Hove, Knut (2009). Untitled. Mycorrhiza. ISSN 0940-6360. 19(3), p. 215–215. doi: 10.1007/s00572-008-0225-y. Full text in Research Archive
• Winther, Ragnar & Ellingsrud, Geir (2004). Matematiske muligheter. Full text in Research Archive
• Ellingsrud, Geir (2003). Om strengteori og kurvetelling. Full text in Research Archive
• Ellingsrud, Geir (2003). Mersenneprimtall. Full text in Research Archive
• Ellingsrud, Geir (2003). Om primtall. Full text in Research Archive
• Ellingsrud, Geir (2003). Fra makro til mikro. Full text in Research Archive
• Ellingsrud, Geir (2003). Sur le Schema de Hilbert d'une surface. Full text in Research Archive
• Ellingsrud, Geir & Rasch-Halvorsen, Anne (2001). Matematikklærere - en utdøende rase? Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116. Full text in Research Archive
• Ellingsrud, Geir (2001). On the Hilbert scheme of points in asurface. Full text in Research Archive
• Ellingsrud, Geir (2001). arabisk matematikk. [Radio]. Østlandssendingen. Full text in Research Archive
• Ellingsrud, Geir (1999). "Teller matte?". [Radio]. Øslandssendingen---. Full text in Research Archive Show summary

  Intervju i forbindelse med lanseringen av boken "Teller matte?"

• Ellingsrud, Geir (1999). Rekruttering og boken "Teller Matte?". [Radio]. Verdt å vite--NRK P2. Full text in Research Archive Show summary

  Intervju i forbindelse med lanseringen av boken "Teller matte?"

• Ellingsrud, Geir (1999). Om beviset for Fermats siste teorem. Full text in Research Archive
• Ellingsrud, Geir (1999). Symmetri og Lie-grupper. Full text in Research Archive
• Ellingsrud, Geir (1999). Resolutions des singularités de quotient, correspondance de McKay et schémas de Hilbert. Full text in Research Archive
• Ellingsrud, Geir (1999). Schemas de Hilbert et algébres de Heisenberg. Full text in Research Archive Show summary

  Tre forelesninger for franske doktorgradsstudenter og postdocs

• Ellingsrud, Geir (1999). Hilbert schemes and Heisenberg algebras. Full text in Research Archive Show summary

  To forelesninger for doktorgradsstudenter og postdocs

• Maugesten, Paul Aleksander; Ellingsrud, Geir & Moe, Karoline (2017). Sextactic Points on Plane Algebraic Curves. Universitetet i Oslo. Full text in Research Archive Show summary

  In this thesis we consider sextactic points on plane algebraic curves and a 2-Hessian curve that identifies these points. This curve was first established by Cayley, and we prove that Cayley's 2-Hessian is wrong. Moreover, we correct his mistakes and give the correct defining polynomial of the 2-Hessian curve. In addition, we present a formula for the number of sextactic points on a cuspidal curve.

• Ellingsrud, Geir; Lehn, Manfred & Göttsche, Lothar (1999). On teh cobordism class of the Hilbert scheme of a surface. The Abdus Salam international center for theoretical physics. Full text in Research Archive
• Ellingsrud, Geir; Piene, Ragni & Strømme, Stein Arild (1986). ON THE VARIETY OF NETS OF QUADRICS DEFINING TWISTED CUBICS. Universitetet i Oslo. Full text in Research Archive
• Ellingsrud, Geir & Strømme, Stein Arild (1980). STABLE RANK-2 VECTOR BUNDLES ON ℙ³ WITH C₁=0 AND C₂=3. Universitetet i Oslo. Full text in Research Archive
• Ellingsrud, Geir & Strømme, Stein Arild (1979). The Picard Group of the Moduli Space for Stable Rank-2 Vector Bundles on P to the Power 2 with Odd First Chern Class. Universitetet i Oslo. Full text in Research Archive
• Ellingsrud, Geir & Strømme, Stein Arild (1979). ON THE MODULI SPACE FOR STABLE RANK-2 VECTOR BUNDLES ON ℙ². Universitetet i Oslo. Full text in Research Archive

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