Orateur: Evgeny Fominykh (University of Chelyabinsk):
Titre:   On Matveev's complexity of classical and virtual 3-manifolds.
Résumé: The most useful approach to a classication of 3-manifolds is the complexity theory founded by S. Matveev. Exact values of complexity are known for few infinite series of 3-manifold. We present the results on complexity for new infinite series of hyperbolic 3-manifolds with boundary. Also we introduce a notion of complexity for virtual 3-manifolds.

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