Results 51 to 60 of about 803,219 (126)

The Relationship Between Pre‐ and Post‐Migration Self‐Employment: Evidence From Italy and Spain

International Migration, Volume 64, Issue 1, January 2026.
ABSTRACT The home‐country self‐employment hypothesis, widely accepted in migration research, posits that immigrants from countries with high self‐employment rates are more likely to become self‐employed. However, supporting evidence remains limited. Recent studies highlight the importance of individual pre‐migration experience, but such evidence is ...
Floriane Bolazzi, Ivana Fellini
wiley   +1 more source

A note on the fourth power mean of the generalized Kloosterman sums

Journal of Number Theory, 2017
Let \(p\) be an odd prime, and let \(\alpha\geq 2\) be an integer. Let \(\chi\) be any non-primitive character modulo \(p^{\alpha}\) satisfying \(\chi\neq \chi_0\), the principal character. Let \(n\) be an integer with \((n, p)=1\). This paper proves that \[ \mathop{\sum_{m=1}^{p^{\alpha}}}_{(m,p)=1}\left|\sum_{a=1}^{p^{\alpha}}\chi(a)e\left(\frac{ma+n\
Zhang, Wenpeng, Shen, Shimeng
openaire   +2 more sources

Pulmonary Sequelae of Severe Acute COVID‐19 and Multisystem Inflammatory Syndrome (MIS‐C) in Dutch Children

Pediatric Pulmonology, Volume 60, Issue 12, December 2025.
ABSTRACT Background Although rare, COVID‐19 in children may lead to hospitalization due to severe respiratory symptoms, or a hyperinflammatory state called Multisystem Inflammatory Syndrome in Children (MIS‐C). This study examined respiratory morbidity in children 5 to 12 months after hospitalization for MIS‐C or COVID‐19. Methods In this multi‐center,
Lieke C. E. Noij, Caroline L. H. Brackel, Mariëlle W. Pijnenburg, Michiel A. G. E. Bannier, Sanne F. Kloosterman, Joost G. van den Aardweg, Arjen Pelgröm, Irene Kuipers, Erik G. J. von Asmuth, Emilie P. Buddingh, Miriam G. Mooij, Angelique M. A. M. Winkel, Lotte Haverman, Lorynn Teela, Anke H. Maitland van der Zee, Johannes B. van Goudoever, Simone Hashimoto, Suzanne W. J. Terheggen‐Lagro   +17 more
wiley   +1 more source

Character sum, reciprocity, and Voronoi formula

Bulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3797-3823, December 2025.
Abstract We prove a novel four‐variable character sum identity that serves as a twisted, non‐Archimedean analog of Weber's integrals for Bessel functions. Using this identity and ideas from Venkatesh's thesis, we provide a short spectral proof of the Voronoi formulae for classical modular forms with character twists.
Chung‐Hang Kwan, Wing Hong Leung
wiley   +1 more source

Testing the underdog entrepreneurship theory with specialised Australian immigrant data

Geographical Research, Volume 63, Issue 4, Page 533-552, November 2025.
Using the 2021 Australian Census and Migrants Integrated Dataset (ACMID), we explore the explanatory value of Miller and Le Breton‐Miller’s underdog entrepreneurship theory (2017): examining its implications in the Australian context, finding some good support for it, and proposing some extensions. Abstract Migrants account for a significant proportion
Yan Tan, Laurence Lester
wiley   +1 more source

Some applications of smooth bilinear forms with Kloosterman sums [PDF]

, 2017
We revisit a recent bound of I. Shparlinski and T. Zhang on bilinear forms with Kloosterman sums, and prove an extension for correlation sums of Kloosterman sums against Fourier coefficients of modular forms.
Michel, Philippe, Philippe Michel, Étienne Fouvry, Milicevic, Djordje, Emmanuel Kowalski, Djordje Milićević, Blomer, V., Fouvry, Etienne, Valentin Blomer, Kowalski, Emmanuel, Blomer, Valentin, Kowalski, E., Sergeev, Armen, Fouvry, É., Milićević, D., Michel, P.   +15 more
core   +1 more source

The Value $4$ of Binary Kloosterman Sums [PDF]

, 2011
Kloosterman sums have recently become the focus of much research, most notably due to their applications in cryptography and their relations to coding theory.
Jean-Pierre Flori, Gérard Cohen, Sihem Mesnager   +2 more
core   +2 more sources

On the fourth power mean of the general Kloosterman sums

Journal of Number Theory, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Algebraic degree of generalized Kloosterman Sums over Finite Fields

In this paper, we study the algebraic degree for a class of generalized Kloosterman sums through Galois theory and Stickelberger Theorem.
Zhen Chen, Xin Lin
core   +1 more source

On the fourth power mean of the analogous general Kloosterman sum

Journal of Number Theory, 2016
The authors study generalized Kloosterman sums \[ C(m,n,k,\chi;q)= \sum_{a=1}^{q}\chi(a)e\left(\frac{m\bar a^k+na}{q }\right), \] where \(q\), \(m\), \(n\), \(k\) are given positive integers, \(q \geq 3\), \(e(x)=e^{2\pi i x}\), \(a\bar a\equiv 1\pmod{q}\) and \(\chi\) is a character \(\mod{q}\).
Chen, Hui, Zhang, Tianping
openaire   +2 more sources