Helge Paul Ruddat

Alessio Corti; Helge Paul Ruddat (2026) How to make log structures. I: Moduli. ISSN 2949-7647. Volum 3. DOI: 10.1017/s2949764726100253

Tim Gräfnitz; Helge Paul Ruddat; Eric Zaslow; Benjamin Zhou (2026) Enumerative geometry of quantum periods. I: Advances in Mathematics. ISSN 0001-8708. Volum 499. DOI: 10.1016/j.aim.2026.111063

Helge Paul Ruddat; Alessio Corti; Simon Felten; Matej Filip (2025) Smoothing Toroidal Crossing Fano Threefolds. I: Jesus Martinez-Garcia; Ivan Cheltsov, ZAG Handbook of Algebraic Geometry - 1st Edition. CRC Press, Tailor and Francis group. ISBN 9781032260464. s.675-678. DOI: https://www.taylorfrancis.com/chapters/edit/10.1201/9781003286363-173/smoothing-toroidal-crossing-fano-threefolds-helge-ruddat-alessio-corti-simon-felten-matej-filip

Helge Paul Ruddat; Ilia Zharkov (2025) Topological SYZ Fibrations with Discriminant in Codimension 2. I: Ivan Cheltsov; Jesus Martinez-Garcia, ZAG Handbook of Algebraic Geometry - 1st Edition. CRC Press, Tailor and Francis group. ISBN 9781032260464. s.890-894. DOI: https://www.taylorfrancis.com/chapters/edit/10.1201/9781003286363-228/topological-syz-fibrations-discriminant-codimension-2-ilia-zharkov-helge-ruddat

Michel van Garrel; Helge Paul Ruddat; Bernd Siebert (2025) Intrinsic Enumerative Mirror Symmetry: Takahashi’s Log Mirror Symmetry for (P2 ,E) Revisited. I: Journal of Mathematical Study (JMS). ISSN 1006-6837. Volum 58. s.575-609. DOI: 10.4208/jms.v58n4.25.12

Tim Gräfnitz; Helge Paul Ruddat; Eric Zaslow (2024) The proper Landau-Ginzburg potential is the open mirror map. I: Advances in Mathematics. ISSN 0001-8708. Volum 447. DOI: 10.1016/j.aim.2024.109639

Bumsig Kim; Hyenho Lho; Helge Ruddat (2023) The degeneration formula for stable log maps. I: Manuscripta mathematica. ISSN 0025-2611. Volum 170. s.63-107. DOI: 10.1007/s00229-021-01361-z

Helge Ruddat; Matej Filip; Simon Felten (2021) Smoothing Toroidal Crossing Spaces. I: Forum of Mathematics, Pi. Online ISSN 2050-5086. Volum 9. s.1-36. DOI: 10.1017/fmp.2021.8

Helge Ruddat; Ilia Zharkov (2021) Tailoring a pair of pants. I: Advances in Mathematics. ISSN 0001-8708. Volum 381. DOI: 10.1016/j.aim.2021.107622

Helge Ruddat; Travis Mandel (2021) Tropical quantum field theory, mirror polyvector fields, and multiplicities of tropical curves. I: International Mathematics Research Notices (IMRN). ISSN 1073-7928. Volum rnab332. DOI: 10.1093/imrn/rnab332

Helge Ruddat (2021) A homology theory for tropical cycles on integral affine manifolds and a perfect pairing. I: Geometry and Topology. ISSN 1465-3060. Volum 25. s.3079-3132. DOI: 10.2140/gt.2021.25.3079

Helge Ruddat; Ilia Zharkov (2021) Compactifying Torus Fibrations Over Integral Affine Manifolds with Singularities. I: Jan de Gier; Terence Tao; Cheryl E. Praeger; David R. Wood, 2019-20 MATRIX Annals. Springer. ISBN 9783030624972. s.609-622. DOI: 10.1007/978-3-030-62497-2_37

Helge Ruddat; Bernd Siebert (2020) Period integrals from wall structures via tropical cycles, canonical coordinates in mirror symmetry and analyticity of toric degenerations. I: Publications mathématiques (Bures-sur-Yvette). ISSN 0073-8301. Volum 132. s.1-82. DOI: 10.1007/s10240-020-00116-y

Helge Ruddat; Cheuk Yu Mak (2020) Tropically constructed Lagrangians in mirror quintic threefolds. I: Forum of Mathematics, Sigma. Online ISSN 2050-5094. Volum 8. DOI: 10.1017/fms.2020.54

Helge Ruddat; Tom Graber; Michel van Garrel (2019) Local Gromov-Witten invariants are log invariants. I: Advances in Mathematics. ISSN 0001-8708. Volum 350. s.860-876. DOI: 10.1016/j.aim.2019.04.063

Helge Ruddat; Travis Mandel (2019) Descendant log Gromov-Witten invariants for toric varieties and tropical curves. I: Transactions of the American Mathematical Society. ISSN 0002-9947. Volum 373. s.1109-1152. DOI: 10.1090/tran/7936

Helge Ruddat; Ludmil Katzarkov; Mark Gross (2017) Towards mirror symmetry for varieties of general type. I: Advances in Mathematics. ISSN 0001-8708. Volum 308. s.208-275. DOI: 10.1016/j.aim.2016.03.035

Helge Ruddat (2017) Perverse curves and mirror symmetry. I: Journal of Algebraic Geometry. ISSN 1056-3911. Volum 26. s.17-42. DOI: 10.1090/jag/666

Helge Ruddat; Douglas Peter Overholser; Michel van Garrel (2015) Enumerative aspects of the Gross-Siebert program. Springer. ISBN 9781493928293.

Helge Ruddat; Alan Thompson; Sara Angela Filippini (2015) An introduction to Hodge structures. Springer. ISBN 9781493928309.

Helge Ruddat; Eric Zaslow; David Treumann; Nicolò Sibilla (2014) Skeleta of affine hypersurfaces. I: Geometry and Topology. ISSN 1465-3060. Volum 18 . s.1343-1395. DOI: 10.2140/gt.2014.18.1343

Helge Paul Ruddat; Dan Abramovich; Penka Georgieva (2024) Real and Logarithmic Enumerative Geometry. EMS Press, Oberwolfach Rep. 21 (2024), no. 2, 1285-1338..

Helge Ruddat; Abramovich Dan; Michel van Garrel (2020) Logarithmic Enumerative Geometry and Mirror Symmetry. European Mathematical Society (EMS) Press.

Helge Ruddat; Douglas Peter Overholser; Johannes Nicaise (2014) Motivic zeta functions of the quartic and its mirror dual. American Mathematical Society (AMS). ISBN 9781470419929.

Helge Ruddat (2011) Mirror duality of Landau–Ginzburg models via discrete Legendre transforms. American Mathematical Society (AMS). ISBN 9780821852323.

Helge Ruddat (2010) Log Hodge groups on a toric Calabi-Yau degeneration. American Mathematical Society (AMS). ISBN 9780821848845.

Helge Paul Ruddat (2026) Clusters, Twistors and Stability. Nasjonalt matematikermøte 2026; 2026-09-08 - 2026-09-10. DOI: https://nyheter.ntnu.no/nasjonalt-matematikermote-2026/

Helge Paul Ruddat (2026) Lagrangian torus fibrations of Calabi–Yau hypersurfaces. Recent Developments in Geometry; 2026-08-09 - 2026-08-12. DOI: https://icms.bg/recent-developments-in-geometry/

Helge Paul Ruddat (2026) The fiber at infinity of the A2 cluster twistor space. Celebrating the Consortium IMSAC International Conference; 2026-08-04 - 2026-08-07. DOI: https://icms.bg/celebrating-the-consortium-imsac-international-conference/

Helge Paul Ruddat (2026) Clusters, twistors and stability conditions. Emmy Noether Seminar; 2026-07-07. DOI: https://www.iag.uni-hannover.de/institut/news/detailansicht/news/tim-graefnitz-neuer-emmy-noether-nachwuchsgruppenleiter

Helge Paul Ruddat (2026) Lagrangian torus fibrations of Calabi–Yau hypersurfaces - Degenerations in Complex Geometry. Degenerations in Complex Geometry; 2026-06-28 - 2026-07-02. DOI: https://www.mittag-leffler.se/activities/degenerations-in-complex-geometry/

Helge Paul Ruddat (2026) Lagrangian fibrations of Calabi–Yau hypersurfaces - lecture series. Geometry Seminar; 2026-01-19 - 2026-01-20. DOI: https://www.ux.uis.no/~ruddat/2026-Jerusalem.pdf

Helge Paul Ruddat (2025) Lagrangian fibrations of Calabi–Yau hypersurfaces. Geometry seminar; 2025-11-30 - 2025-12-04. DOI: https://lists.ictp.it/pipermail/science-ts/2025-November/009371.html

Helge Paul Ruddat (2025) The twistor space of the universal unfolding of the A_n singularity and beyond. New Developments in Singularity Theory; 2025-11-09 - 2025-11-13. DOI: https://www.imsa.miami.edu/events/2025-fall-emphasis/singularity-theory/index.html

Helge Paul Ruddat (2025) Smoothing Fano Varieties. Singularities; 2025-09-27 - 2025-10-02. DOI: https://publications.mfo.de/bitstream/handle/mfo/4394/OWR_2025_45.pdf?sequence=1&isAllowed=y

Helge Paul Ruddat (2025) Fano Varieties in Stavanger. Fano Varieties in Stavanger; 2025-04-01 - 2025-04-03. DOI: https://indico2.uis.no/event/54/

Helge Paul Ruddat (2025) Clusters, twistors and stability conditions. Mathematical Congress of the Americas 2025; 2025-07-19 - 2025-07-24.

Helge Paul Ruddat (2025) #mathematics | UiS Department of Mathematics and Physics.

Helge Paul Ruddat (2025) Last Friday, the University of Stavanger hosted Ungdommens Forskernatt, an exciting event for high-school students who are curious about research 📝 , in collaboration with Ulltra -… | UiS Department of Mathematics and Physics.

Helge Paul Ruddat; Bjørn Henrik Auestad (2023) Ny matematikk som virker både her og der. s.22-22.