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Publicacions matemàtiques 15 registres trobats  La cerca s'ha fet en 0.01 segons. 
1.
33 p, 487.7 KB Sarkisov links with centre space curves on smooth cubic surfaces / Zikas, Sokratis (Universität Basel. Departement Mathematik und Informatik)
We construct and study Sarkisov links obtained by blowing up smooth space curves lying on smooth cubic surfaces. We restrict our attention to the case where the blowup is not weak Fano. Together with the results of [5], which cover the weak Fano case, we provide a classification of all such curves. [...]
2023 - 10.5565/PUBLMAT6722301
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 481-513 (Articles)  
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2.
26 p, 409.7 KB Logarithmic Hardy-Littlewood-Sobolev inequality on pseudo-Einstein 3-manifolds and the logarithmic Robin mass / Maalaoui, Ali (Clark University (Worcester, Estats Units d'Amèrica). Department of Mathematics)
Given a three-dimensional pseudo-Einstein CR manifold (M, T1,0M, θ),vwe study the existence of a contact structure conformal to θ for which the logarithmic Hardy-Littlewood-Sobolev (LHLS) inequality holds. [...]
2023 - 10.5565/PUBLMAT6722302
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 515-540 (Articles)  
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3.
27 p, 372.3 KB Strong exchange rings / Cortes-Izurdiaga, Manuel (Universidad de Málaga. Departamento de Matemática Aplicada) ; Guil Asensio, Pedro A. (Universidad de Murcia. Departamento de Matemáticas)
Two elements a, b in a ring R form a right coprime pair, written ha, bi, if aR + bR = R. Right coprime pairs have shown to be quite useful in the study of left cotorsion or exchange rings. In this paper, we define the class of right strong exchange rings in terms of descending chains of them. [...]
2023 - 10.5565/PUBLMAT6722303
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 541-567 (Articles)  
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4.
31 p, 476.1 KB Q-curves, Hecke characters and some Diophantine equations II / Pacetti, Ariel (Universidad de Aveiro. Department of Mathematics)
In the article [25] a general procedure to study solutions of the equations x4 − dy2 = z p was presented for negative values of d. The purpose of the present article is to extend our previous results to positive values of d. [...]
2023 - 10.5565/PUBLMAT6722304
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 569-599 (Articles)  
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5.
9 p, 303.0 KB A renorming characterization of Banach spaces containing ℓ1(κ) / Avilés, Antonio (Universidad de Murcia. Departamento de Matemáticas) ; Martínez-Cervantes, Gonzalo (Universidad de Alicante. Departamento de Matemáticas) ; Rueda Zoca, Abraham (Universidad de Granada. Departamento de Análisis Matemático)
A result of G. Godefroy asserts that a Banach space X contains an isomorphic copy of '1 if and only if there is an equivalent norm ||| · ||| such that, for every finite-dimensional subspace Y of X and every ε > 0, there exists x ∈ SX so that |||y+rx||| ≥ (1−ε)(|||y|||+|r|) for every y ∈ Y and every r ∈ R. [...]
2023 - 10.5565/PUBLMAT6722305
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 601-609 (Articles)  
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6.
50 p, 590.0 KB An explicit formula for the second moment of Maass form symmetric square L-functions / Balkanova, Olga (Steklov Mathematical Institute (Moscou, Rússia)) ; Frolenkov, Dmitry (Steklov Mathematical Institute (Moscou, Rússia))
We prove an explicit formula for the second moment of symmetric square L-functions associated to Maass forms for the full modular group. In particular, we show how to express the considered second moment in terms of dual second moments of symmetric square L-functions associated to Maass cusp forms of levels 4, 16, and 64.
2023 - 10.5565/PUBLMAT6722306
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 611-660 (Articles)  
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7.
25 p, 403.4 KB Dyadic lower little BMO estimates / Domelevo, Komla (Julius-Maximilians-Universität Würzburg. Institut für Mathematik) ; Kakaroumpas, Spyridon (Julius-Maximilians-Universität Würzburg. Institut für Mathematik) ; Petermichl, Stefanie (Julius-Maximilians-Universität Würzburg. Institut für Mathematik) ; Soler i Gibert, Odí (Julius-Maximilians-Universität Würzburg. Institut für Mathematik)
We characterize dyadic little BMO via the boundedness of the tensor commutator with a single well-chosen dyadic shift. It is shown that several proof strategies work for this problem, both in the unweighted case and with Bloom weights. [...]
2023 - 10.5565/PUBLMAT6722307
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 661-685 (Articles)  
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8.
27 p, 415.7 KB Notes on compactness in Lp-spaces on locally compact groups / Krukowski, Mateusz (Lódz University of Technology (Lodz, Polònia). Institute of Mathematics)
The main goal of the paper is to provide new insight into compactness in Lp-spaces on locally compact groups. The article begins with a brief historical overview and the current state of literature regarding the topic. [...]
2023 - 10.5565/PUBLMAT6722308
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 687-713 (Articles)  
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9.
27 p, 463.9 KB Some extensions of the modular method and Fermat equations of signature (13,13,n) / Billerey, Nicolas (Université Clermont Auvergne) ; Chen, Imin (Simon Fraser University. Department of Mathematics) ; Dembélé, Lassina (University of Luxembourg. Department of Mathematics) ; Dieulefait, Luis (Universitat de Barcelona. Departament d'Algebra i Geometria) ; Freitas, Nuno (Instituto de Ciencias Matemáticas (Madrid, Espanya))
We provide several extensions of the modular method which were motivated by the problem of completing previous work to prove that, for any integer n ≥ 2, the equation x13 + y 13 = 3zn has no non-trivial primitive solutions. [...]
2023 - 10.5565/PUBLMAT6722309
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 715-741 (Articles)  
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10.
14 p, 357.8 KB On generic flag varieties for odd spin groups / Karpenko, Nikita A. (University of Alberta)
For the spin group G = Spin2n+1 with arbitrary n, a generic G-torsor E over a field, and a parabolic subgroup P ⊂ G, we consider the generic flag variety E/P and describe its Chow ring modulo torsion. [...]
2023 - 10.5565/PUBLMAT6722310
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 743-756 (Articles)  
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11.
37 p, 487.8 KB On finite GK-dimensional Nichols algebras of diagonal type : rank 3 and Cartan type / Angiono, Ivan (Universidad Nacional de Córdoba) ; García Iglesias, Agustín (Universidad Nacional de Córdoba)
This paper contributes to the proof of the conjecture posed in [5], stating that a Nichols algebra of diagonal type with finite Gelfand-Kirillov dimension has a finite (generalized) root system. We prove the conjecture assuming that the rank is 3 or that the braiding is of Cartan type.
2023 - 10.5565/PUBLMAT6722311
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 757-793 (Articles)  
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12.
24 p, 414.0 KB Normalizers of sets of components in fusion systems / Oliver, Bob (Université Sorbonne Paris Nord)
We describe some new ways to construct saturated fusion subsystems, including, as a special case, the normalizer of a set of components of the ambient fusion system. This was motivated in part by Aschbacher's construction of the normalizer of one component, and in part by joint work with three other authors where we had to construct the normalizer of all of the components.
2023 - 10.5565/PUBLMAT6722312
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 795-818 (Articles)  
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13.
32 p, 706.4 KB An α-number characterization of Lp spaces on uniformly rectifiable sets / Azzam, Jonas (University of Edinburgh. School of Mathematics) ; Dąbrowski, Damian (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
We give a characterization of Lp(σ) for uniformly rectifiable measures σ using Tolsa's α-numbers, by showing, for 1 < p < ∞ and f ∈ Lp(σ), that kfkLp(σ) ∼Z ∞0(αfσ(x, r) + |f|x,rασ(x, r))2drr12Lp(σ).
2023 - 10.5565/PUBLMAT6722313
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 819-850 (Articles)  
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14.
40 p, 527.5 KB Real forms of some Gizatullin surfaces and Koras-Russell threefolds / Blanc, Jérémy (Universität Basel. Departement Mathematik und Informatik) ; Bot, Anna (Universität Basel. Departement Mathematik und Informatik) ; Poloni, Pierre-Marie (Universität Basel. Departement Mathematik und Informatik)
We describe the real forms of Gizatullin surfaces of the form xy = p(z) and of Koras-Russell threefolds of the first kind. The former admit zero, two, three, four, or six isomorphism classes of real forms, depending on the degree and the symmetries of the polynomial p. [...]
2023 - 10.5565/PUBLMAT6722314
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 851-890 (Articles)  
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15.
22 p, 394.7 KB Homogeneous CR submanifolds of complex hyperbolic spaces / Díaz-Ramos, Jose Carlos (Universidade de Santiago de Compostela) ; Domínguez-Vázquez, Miguel (Universidade de Santiago de Compostela) ; Pérez-Barral, Olga (IES Monte da Vila (O Grove, Galícia))
We classify homogeneous CR submanifolds in complex hyperbolic spaces arising as orbits of a subgroup of the solvable part of the Iwasawa decomposition of the isometry group of the ambient space.
2023 - 10.5565/PUBLMAT6722315
Publicacions matemàtiques, Vol. 67 Núm. 2 (2023) , p. 891-912 (Articles)  
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