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Displaying 221 – 240 of 643

Homotopy classification of nanophrases with at most four letters

Tomonori Fukunaga (2011)

Fundamenta Mathematicae

We give a homotopy classification of nanophrases with at most four letters. It is an extension of the classification of nanophrases of length 2 with at most four letters, given by the author in a previous paper. As a corollary, we give a stable classification of ordered, pointed, oriented multi-component curves on surfaces with minimal crossing number less than or equal to 2 such that any equivalent curve has no simply closed curves in its components.

Homotopy invariants of links.

Kent E. Orr (1989)

Inventiones mathematicae

Homotopy Lie algebras and fundamental groups via deformation theory

Martin Markl, Stefan Papadima (1992)

Annales de l'institut Fourier

We formulate first results of our larger project based on first fixing some easily accessible invariants of topological spaces (typically the cup product structure in low dimensions) and then studying the variations of more complex invariants such as $π_{*} Ω S$ (the homotopy Lie algebra) or ${gr}^{*} π_{1} S$ (the graded Lie algebra associated to the lower central series of the fundamental group). We prove basic rigidity results and give also an application in low-dimensional topology.

Homotopy Lie algebras; lower central series and the Koszul property.

Papadima, Stefan, Suciu, Alexander I. (2004)

Geometry & Topology

Hyperbolic covering knots.

Silver, Daniel S., Whitten, Wilbur (2005)

Algebraic & Geometric Topology

Hyperbolic knots and cyclic branched covers.

Luisa Paoluzzi (2005)

Publicacions Matemàtiques

We collect several results on the determination of hyperbolic knots by means of their cyclic branched covers. We construct examples of knots having two common cyclic branched covers. Finally, we briefiy discuss the problem of determination of hyperbolic links.

Ideal triangulations of 3-manifolds II; taut and angle structures.

Kang, Ensil, Rubinstein, J.Hyam (2005)

Algebraic & Geometric Topology

Ideal Turaev-Viro invariants.

King, Simon A. (2006)

Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]

Incompressibilité des feuilles de germes de feuilletages holomorphes singuliers

David Marín, Jean-François Mattei (2008)

Annales scientifiques de l'École Normale Supérieure

Nous considérons un germe de feuilletage holomorphe singulier non-dicritique $ℱ$ défini sur une boule fermée $\bar{𝔹} \subset ℂ^{2}$ , satisfaisant des hypothèses génériques, de courbe de séparatrice $S$ . Nous démontrons l’existence d’un voisinage ouvert $U$ de $S$ dans $\bar{𝔹}$ tel que, pour toute feuille $L$ de $ℱ_{| (U ∖ S)}$ , l’inclusion naturelle $ı : L ↪ U ∖ S$ induit un monomorphisme $ı_{*} : π_{1} (L) ↪ π_{1} (U ∖ S)$ au niveau du groupe fondamental. Pour cela, nous introduisons la notion géométrique de « connexité feuilletée » avec laquelle nous réinterprétons la notion d’incompressibilité....

Incompressible punctured tori in the complements of alterning knots.

Robert M. Patton (1995)

Mathematische Annalen

Incompressible spanning surfaces and maximal fibred submanifolds.

Osamu Kakimizu (1992)

Mathematische Zeitschrift

Incompressible surfaces in 2-bridge knot complements.

A. Hatcher, W. Thurston (1985)

Inventiones mathematicae

Indice des sous facteurs, algèbres de Hecke et théorie des noeuds

A. Connes (1984/1985)

Séminaire Bourbaki

Infinite order amphicheiral knots.

Livingston, Charles (2001)

Algebraic & Geometric Topology

Infinitely many two-variable generalisations of the Alexander-Conway polynomial.

De Wit, David, Ishii, Atsushi, Links, Jon (2005)

Algebraic & Geometric Topology

Intrinsic knotting and linking of complete graphs.

Flapan, Erica (2002)

Algebraic & Geometric Topology

Intrinsic linking and knotting are arbitrarily complex

Erica Flapan, Blake Mellor, Ramin Naimi (2008)

Fundamenta Mathematicae

We show that, given any n and α, any embedding of any sufficiently large complete graph in ℝ³ contains an oriented link with components Q₁, ..., Qₙ such that for every i ≠ j, $| l k (Q_{i}, Q_{j}) | \geq α$ and $| a ₂ (Q_{i}) | \geq α$ , where $a ₂ (Q_{i})$ denotes the second coefficient of the Conway polynomial of $Q_{i}$ .

Currently displaying 221 – 240 of 643

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Displaying 221 – 240 of 643

Homotopy classification of nanophrases with at most four letters

Homotopy invariants of links.

Homotopy Lie algebras and fundamental groups via deformation theory

Homotopy Lie algebras; lower central series and the Koszul property.

Hyperbolic covering knots.

Hyperbolic knots and cyclic branched covers.

Ideal triangulations of 3-manifolds II; taut and angle structures.

Ideal Turaev-Viro invariants.

Incompressibilité des feuilles de germes de feuilletages holomorphes singuliers

Incompressible punctured tori in the complements of alterning knots.

Incompressible spanning surfaces and maximal fibred submanifolds.

Incompressible surfaces in 2-bridge knot complements.

Indice des sous facteurs, algèbres de Hecke et théorie des noeuds

Infinite order amphicheiral knots.

Infinitely many two-variable generalisations of the Alexander-Conway polynomial.

Intrinsic knotting and linking of complete graphs.

Intrinsic linking and knotting are arbitrarily complex

Intrinsically linked graphs and even linking number.

Invariantes topológicos en el ADN, los Fullerenos y la Teoría de Elección Social.

Invariants de Vassiliev des nœuds

Currently displaying 221 – 240 of 643