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Vol. 106 No. 2 (2022)

Published: 2022-09-05

Articles

Abelian difference sets as lattice coverings and lattice tilings

M. Kovacevic
Some extremal results on the chromatic-stability index
Toughness, isolated toughness and path factors in graphs

Sizhong Zhou, Jiancheng Wu, Yang Xu
On the divisibility of sums involving Apery-like polynomials

S. Yang, J.-C. Liu
On a $k$ -additive uniqueness set for multiplicative functions

E. Hasanalizade
A generalisation of a theorem of Erdos and Niven

X. Jiang, S. F. Hong
On integer sets with the same representation functions

K.-J. Jiao, C. Sandor, Q.-H. Yang, J.-Y. Zhou
A $q$ -supercongruence modulo the third power of a cyclotomic polynomial

C. Wei
Applications of circulant matrices to determinants involving $k$ th power residues

H.-L. Wu, L.-Y. Wang
Diophantine equations for polynomials with restricted coefficients, I (power values)

L. Hajdu, N. Varga
On repunit Cullen numbers

A. Alahmadi, Florian Luca
An application of binary quadratic forms of discriminant $-31$ to modular forms

Z. S. Aygin, K. S. Williams
Apéry limits for elliptic L-values

C. Koutschan, W. Zudilin
On divisor function over non-homogeneous Beatty sequences

Wei Zhang
On Stark's class number conjecture and the generalised Brauer-Siegel conjecture

P.-J. Wong
On the nonnegativity of the Dirichlet energy of a weighted graph

K. Broder
On a question of Moreto
A note on Wielandt's theorem

H. Meng, X. Guo
Groups with a given number of nonpower subgroups Groups with a given number of nonpower subgroups

C. S. Anabanti, S. B. Hart
Complex structures on stratified Lie algebras

J. Zhang
A new nonlocal nonlinear diffusion equation: the one-dimensional case

G. Aletti, A. Benfenati, G. Naldi
Maximal ideal in the space of operators on $(\sum\ell_q)_{c_0}$

D. C. Cadavid, Monika, B. Zheng

Abstracts of PhD Theses

Multiple imputation for categorical variables in multilevel data

H. D. Kottage
Some contributions to measuring and understanding heterogeneity in meta-analysis

M. Cairns