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- Kheira Ameur, Mohamed Elhamdadi, Tom Rose, Masahico Saito, Chad Smudde
- Experimental Mathematics
- 2008

A tangle is a pair (B,A) where A is a set of properly embedded arcs in a 3-ball B. A tangle will have four end points throughout the article, unless otherwise specified. A tangle T is embedded in a link (or a knot) L if there is an embedded ball B in 3-space such that T is equivalent to the pair (B,B ∩ L). All maps are assumed to be smooth. Tangles are… (More)

- Kheira Ameur
- 2008

Cocycles are constructed by polynomial expressions for Alexander quandles. As applications, non-triviality of some quandle homology groups are proved, and quandle cocycle invariants of knots are studied. In particular, for an infinite family of quandles, the non-triviality of quandle homology groups is proved for all odd dimensions.

- M E Degeorges, J. C. Roucayrol, +5 authors Kheira Ameur
- Archives des maladies du coeur et des vaisseaux
- 1979

A comparative study of the diagnosis of intracardiac left-to-right shunts by isotope radiography on the one hand and oxymetry, abnormal catheter trajectory and angiocardiography on the other, was performed on a series of 110 patients, comprising 12 normals, 46 valvulopathies or cardiomyopathies without shunts, 23 ASDs, 22 VSDs, and 7 other shunts.… (More)

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