Open Access

On describing trees and quasi-trees from their leaves

Bruno Courcelle

RAIRO-Theor. Inf. Appl., 60 (2026) 13

Published online: 03 April 2026

DOI: https://doi.org/10.1051/ita/2026009

• PDF (777.5 KB)
• References

Diophantine Analysis and Related Topics (DART2025Z)

Open Access

Diophantine approximation with two squares and three biquadrates of primes

Yu Fu, Liqun Hu, Siqi Liu and Li Yang

RAIRO-Theor. Inf. Appl., 60 (2026) 12

Published online: 31 March 2026

DOI: https://doi.org/10.1051/ita/2026013

• PDF (519.4 KB)
• References

Diophantine Analysis and Related Topics (DART2025Z)

Open Access

Fibonacci Determinants. III

Takao Komatsu and Emrah Kiliç

RAIRO-Theor. Inf. Appl., 60 (2026) 8

Published online: 17 March 2026

DOI: https://doi.org/10.1051/ita/2026007

• PDF (516.4 KB)
• References

Diophantine Analysis and Related Topics (DART2025Z)

Open Access

On the Numbers of Ramanujan

Mehmet Cenkci and Takao Komatsu

RAIRO-Theor. Inf. Appl., 60 (2026) 9

Published online: 17 March 2026

DOI: https://doi.org/10.1051/ita/2026010

• PDF (462.2 KB)
• References

Open Access

On some infinite matrices of binomial type and their generating functions

Murat Erdoğan, Cenap Duyar and Nilay Değirmen

RAIRO-Theor. Inf. Appl., 60 (2026) 10

Published online: 17 March 2026

DOI: https://doi.org/10.1051/ita/2026011

• PDF (469.6 KB)
• References

Open Access

General position number of hierarchical scale-free graphs

Naoki Matsumoto

RAIRO-Theor. Inf. Appl., 60 (2026) 11

Published online: 17 March 2026

DOI: https://doi.org/10.1051/ita/2026012

• PDF (506.5 KB)
• References

Diophantine Analysis and Related Topics (DART2025Z)

Open Access

The k-fold divisor function over the intersection of Piatetski-Shapiro sequences

Victor Zhenyu Guo and Xuyan Wang

RAIRO-Theor. Inf. Appl., 60 (2026) 7

Published online: 09 March 2026

DOI: https://doi.org/10.1051/ita/2026006

• PDF (520.3 KB)
• References

Diophantine Analysis and Related Topics (DART2025Z)

Open Access

Editorial

Preface

Takao Komatsu, Florian Luca and Guangshi Lü

RAIRO-Theor. Inf. Appl., 60 (2026) E1

Published online: 25 February 2026

DOI: https://doi.org/10.1051/ita/2026008

• PDF (107.6 KB)

Diophantine Analysis and Related Topics (DART2025Z)

Open Access

A system of two Diophantine inequalities with primes

Yanjun Dong and Qian Wang

RAIRO-Theor. Inf. Appl., 60 (2026) 3

Published online: 25 February 2026

DOI: https://doi.org/10.1051/ita/2026003

• PDF (509.5 KB)
• References

Diophantine Analysis and Related Topics (DART2025Z)

Open Access

A Diophantine inequality with one prime of the form p = m² + n² + 1

Yukun Liu and Jing Huang

RAIRO-Theor. Inf. Appl., 60 (2026) 4

Published online: 25 February 2026

DOI: https://doi.org/10.1051/ita/2026002

• PDF (565.9 KB)
• References