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We describe the structure of minimal round functions on compact closed surfaces and three-dimensional manifolds. The minimal possible number of critical loops is determined and typical non-equisingular round function germs are interpreted in the spirit of isolated line singularities. We also discuss a version of Lusternik-Schnirelmann theory suitable for round functions.
Georgi Khimshiashvili, and Dirk Siersma. "Remarks on minimal round functions." Banach Center Publications 62.1 (2003): 159-172. <http://eudml.org/doc/282493>.
@article{GeorgiKhimshiashvili2003, abstract = {We describe the structure of minimal round functions on compact closed surfaces and three-dimensional manifolds. The minimal possible number of critical loops is determined and typical non-equisingular round function germs are interpreted in the spirit of isolated line singularities. We also discuss a version of Lusternik-Schnirelmann theory suitable for round functions.}, author = {Georgi Khimshiashvili, Dirk Siersma}, journal = {Banach Center Publications}, keywords = {round function; round Morse function; equisingular critical loop; isolated line singularity; Lusternik-Schnirelmann category}, language = {eng}, number = {1}, pages = {159-172}, title = {Remarks on minimal round functions}, url = {http://eudml.org/doc/282493}, volume = {62}, year = {2003}, }
TY - JOUR AU - Georgi Khimshiashvili AU - Dirk Siersma TI - Remarks on minimal round functions JO - Banach Center Publications PY - 2003 VL - 62 IS - 1 SP - 159 EP - 172 AB - We describe the structure of minimal round functions on compact closed surfaces and three-dimensional manifolds. The minimal possible number of critical loops is determined and typical non-equisingular round function germs are interpreted in the spirit of isolated line singularities. We also discuss a version of Lusternik-Schnirelmann theory suitable for round functions. LA - eng KW - round function; round Morse function; equisingular critical loop; isolated line singularity; Lusternik-Schnirelmann category UR - http://eudml.org/doc/282493 ER -