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11 papers · 1 filter
Methods to compute ring invariants and applications: a new class of exotic threefolds
Bachar Alhajjar
We develop some methods to compute the Makar-Limanov and Derksen invariants, isomorphism classes and automorphism groups for k-domains B, which are constructed from certain Russell…
A spectral-like decomposition for transitive Anosov flows in dimension three
François Béguin, Christian Bonatti, Bin Yu
Given a (transitive or non-transitive) Anosov vector field on a closed three-dimensional manifold , one may try to decompose by cutting along two-tori transverse…
Expansions of the solutions of the confluent Heun equation in terms of the incomplete Beta and the Appell generalized hypergeometric functions
C. Leroy, A. M. Ishkhanyan
We construct several expansions of the solutions of the confluent Heun equation in terms of the incomplete Beta functions and the Appell generalized hypergeometric functions of two…
Unfoldings of saddle-nodes and their Dulac time
Pavao Mardesić, David Marín, Mariana Saavedra +1
In this paper we study unfoldings of saddle-nodes and their Dulac time. By unfolding a saddle-node, saddles and nodes appear. In the first result (Theorem A) we prove uniform regul…
Rank two aCM bundles on the del Pezzo fourfold of degree and its general hyperplane section
Gianfranco Casnati, Daniele Faenzi, Francesco Malaspina
In the present paper we completely classify locally free sheaves of rank with vanishing intermediate cohomology modules on the image of the Segre embedding $\mathbb{P}^2\times\…
The 2014 KIDA network for interstellar chemistry
V. Wakelam, J. -C. Loison, E. Herbst +21
Chemical models used to study the chemical composition of the gas and the ices in the interstellar medium are based on a network of chemical reactions and associated rate coefficie…