Universität zu Köln

2022

Albers, Peter ORCID: 0000-0002-7324-0609, Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2022). Pseudorotations of the 2-disc and Reeb flows on the 3-sphere. Ergod. Theory Dyn. Syst., 42 (2). S. 402 - 437. NEW YORK: CAMBRIDGE UNIV PRESS. ISSN 1469-4417

2021

Geiges, Hansjoerg and Lange, Christian (2021). Seifert fibrations of lens spaces (vol 88, pg 1, 2018). Abh. Math. Semin. Univ. Hamburg, 91 (1). S. 145 - 151. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 1865-8784

2020

Geiges, Hansjoerg and Onaran, Sinem (2020). LEGENDRIAN HOPF LINKS. Q. J. Math., 71 (4). S. 1419 - 1460. OXFORD: OXFORD UNIV PRESS. ISSN 1464-3847

Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2020). Odd-symplectic forms via surgery and minimality in symplectic dynamics. Ergod. Theory Dyn. Syst., 40 (3). S. 699 - 714. NEW YORK: CAMBRIDGE UNIV PRESS. ISSN 1469-4417

2019

Durst, Sebastian, Geiges, Hansjoerg and Kegel, Marc (2019). Handle homology of manifolds. Topology Appl., 256. S. 113 - 128. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1879-3207

Geiges, Hansjoerg (2019). Controlled Reeb dynamics - Three lectures not in Cala Gonone. Complex Manifolds, 6 (1). S. 118 - 138. WARSAW: SCIENDO. ISSN 2300-7443

2018

Albers, Peter, Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2018). Reeb dynamics inspired by Katok's example in Finsler geometry. Math. Ann., 370 (3-4). S. 1883 - 1908. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 1432-1807

Ding, Fan, Geiges, Hansjoerg and Zhang, Guangjian (2018). On Subcritically Stein Fillable 5-manifolds. Can. Math. Bul.-Bul. Can. Math., 61 (1). S. 85 - 97. OTTAWA: CANADIAN MATHEMATICAL SOC. ISSN 1496-4287

Geiges, Hansjoerg (2018). Isotopies vis-A -vis level-preserving embeddings. Arch. Math., 110 (2). S. 197 - 201. BASEL: SPRINGER BASEL AG. ISSN 1420-8938

Geiges, Hansjoerg and Lange, Christian (2018). Seifert fibrations of lens spaces. Abh. Math. Semin. Univ. Hamburg, 88 (1). S. 1 - 23. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 1865-8784

Geiges, Hansjoerg and Onaran, Sinem ORCID: 0000-0002-7627-1187 (2018). Legendrian Lens Space Surgeries. Mich. Math. J., 67 (2). S. 405 - 423. ANN ARBOR: MICHIGAN MATHEMATICAL JOURNAL. ISSN 0026-2285

2017

Doerner, Max, Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2017). Finsler geodesics, periodic Reeb orbits, and open books. Eur. J. Math., 3 (4). S. 1058 - 1076. CHAM: SPRINGER INTERNATIONAL PUBLISHING AG. ISSN 2199-6768

Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2017). Cobordisms between symplectic fibrations. Manuscr. Math., 153 (3-4). S. 331 - 341. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 1432-1785

2016

Boese, Christoph K., Bredow, Jan, Dargel, Jens, Eysel, Peer, Geiges, Hansjoerg and Lechler, Philipp (2016). Calibration Marker Position in Digital Templating of Total Hip Arthroplasty. J. Arthroplast., 31 (4). S. 883 - 888. PHILADELPHIA: CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS. ISSN 1532-8406

Geiges, Hansjoerg and Gonzalo Perez, Jesus (2016). Transversely holomorphic flows and contact circles on spherical 3-manifolds. Enseign. Math., 62 (3-4). S. 527 - 568. ZURICH: EUROPEAN MATHEMATICAL SOC. ISSN 2309-4672

Geiges, Hansjoerg, Roettgen, Nena and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2016). From a Reeb orbit trap to a Hamiltonian plug. Arch. Math., 107 (4). S. 397 - 405. BASEL: SPRINGER BASEL AG. ISSN 1420-8938

Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2016). Reeb dynamics detects odd balls. Ann. Scuola Norm. Super. Pisa-Cl. Sci., 15. S. 663 - 682. PISA: SCUOLA NORMALE SUPERIORE. ISSN 2036-2145

Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2016). The Weinstein Conjecture for Connected Sums. Int. Math. Res. Notices, 2016 (2). S. 325 - 343. OXFORD: OXFORD UNIV PRESS. ISSN 1687-0247

2015

Boese, Christoph Kolja, Lechler, Philipp, Rose, Leonard, Dargel, Jens, Oppermann, Johannes, Eysel, Peer, Geiges, Hansjoerg and Bredow, Jan (2015). Calibration Markers for Digital Templating in Total Hip Arthroplasty. PLoS One, 10 (7). SAN FRANCISCO: PUBLIC LIBRARY SCIENCE. ISSN 1932-6203

Geiges, Hansjoerg and Onaran, Sinem ORCID: 0000-0002-7627-1187 (2015). Legendrian rational unknots in lens spaces. J. Symplectic Geom., 13 (1). S. 17 - 51. SOMERVILLE: INT PRESS BOSTON, INC. ISSN 1540-2347

2014

Doerner, Max, Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2014). OPEN BOOKS AND THE WEINSTEIN CONJECTURE. Q. J. Math., 65 (3). S. 869 - 886. OXFORD: OXFORD UNIV PRESS. ISSN 1464-3847

Geiges, Hansjoerg and Klukas, Mirko (2014). The fundamental group of the space of contact structures on the 3-torus. Math. Res. Lett., 21 (6). S. 1257 - 1263. SOMERVILLE: INT PRESS BOSTON, INC. ISSN 1945-001X

Geiges, Hansjoerg, Roettgen, Nena and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2014). Trapped Reeb orbits do not imply periodic ones. Invent. Math., 198 (1). S. 211 - 218. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 1432-1297

2012

Ding, Fan and Geiges, Hansjoerg (2012). Contact structures on principal circle bundles. Bull. London Math. Soc., 44. S. 1189 - 1203. OXFORD: OXFORD UNIV PRESS. ISSN 0024-6093

Ding, Fan, Geiges, Hansjoerg and van Koert, Otto (2012). Diagrams for contact 5-manifolds. J. Lond. Math. Soc.-Second Ser., 86. S. 657 - 683. OXFORD: OXFORD UNIV PRESS. ISSN 0024-6107

2011

Ding, Fan and Geiges, Hansjoerg (2011). Neighbourhoods and isotopies of knots in contact 3-manifolds. Arch. Math., 97 (4). S. 391 - 398. BASEL: BIRKHAUSER VERLAG AG. ISSN 0003-889X

2010

Geiges, Hansjoerg and Gonzalo Perez, Jesus (2010). A homogeneous Gibbons-Hawking ansatz and Blaschke products. Adv. Math., 225 (5). S. 2598 - 2616. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 0001-8708

Geiges, Hansjoerg and Zehmisch, Kai ORCID: 0000-0002-9512-860X (2010). ELIASHBERG'S PROOF OF CERF'S THEOREM. J. Topol. Anal., 2 (4). S. 543 - 580. SINGAPORE: WORLD SCIENTIFIC PUBL CO PTE LTD. ISSN 1793-5253