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Anobiidae del África Austral (Coleoptera, Bostrychoidea): 9a nota, subfamilia Tricoryninae, géneros Mesocoelopus Jacquelin du Val, 1860, Mesothes Mulsant & Rey, 1864, y Rhamna Peyerimhoff, 1912 

Español i Coll, Francesc; Viñolas, Amador (Publication date: 1993-12-11)

Complete 3-manifolds of positive scalar curvature with quadratic deca 

Balacheff, Florent; Sardà, Teo Gil Moreno de Mora; Sabourau, Stéphane (Publication date: 2025-06-04)

We prove that if an orientable 3-manifold M admits a complete Riemannian mètric whose scalar curvature is positive and has a subquadratic decay at infinity, then it decomposes as a (possibly infinite) connected sum of ...

Ergodic properties of infinite extension of symmetric interval exchange transformations 

Berk, P.; Trujillo, Frank; Wu, H. (Publication date: 2025-06-11)

We prove that skew products with the co cycle given by the function f (x) = a(x-1/2) with a not equal 0 are ergodic for every ergodic symmetric IET in the base, thus giving the full characterization of ergodic extensions ...

‘t Hooft bundles on the complete flag threefold and moduli spaces of instantons 

Antonelli, V.; Malaspina, F.; Marchesi, Simone; Pons-Llopis, J. (Publication date: 2025-10-25)

In this work we study the moduli spaces of instanton bundles on the flag twistor space F := F (0, 1, 2). We stratify them in terms of the minimal twist supporting global sections and we introduce the notion of (special) ...

Parabolic Saddles and Newhouse Domains in Celestial Mechanics 

Garrido, M.; Martin, Pau; Paradela, J. (Publication date: 2025-06-23)

In McGehee (J Differ Equ 14:70–88, 1973) McGehee introduced a compactification of the phase space of the restricted 3-body problem by gluing a manifold of periodic orbits “at infinity”. Although from the dynamical point ...