Volume 19, (1981)

Research Article

Some polynomials related to the Bernoulli and Euler polynomials

Carlitz, Leonard

Util. Math. 19, 81-127 (1981).

Research Article

On pop-stacks in series

Avis, David; Newborn, Monroe

Util. Math. 19, 129-140 (1981).

Research Article

Predator-prey systems with a perturbed periodic carrying capacity

Freedman, H. I.; Manetto, L.

Util. Math. 19, 141-155 (1981).

Research Article

On 5-designs

Kageyama, Sanpei

Util. Math. 19, 171-176 (1981).

Research Article

Clique coverings of graphs. I: Clique partitions of regular graphs

Pullman, Norman J.; de Caen, Dom

Util. Math. 19, 177-205 (1981).

Research Article

Clique coverings of graphs. II: Complements of cliques

Pullman, Norman J.; Donald, Alan

Util. Math. 19, 207-213 (1981).

Research Article

Replacement theorems for concomitants of gauge fields

Horndeski, Gregory Walter

Util. Math. 19, 215-246 (1981).

Research Article

Two theorems on rational power series

Gessel, Ira M.

Util. Math. 19, 247-254 (1981).

Research Article

The application of the variation of constants formulas in the numerical analysis of integral and integro-differential equations

Brunner, Hermann

Util. Math. 19, 255-290 (1981).

Research Article

On three-colored lines in the plane and Ed

Purdy, George

Util. Math. 19, 291-293 (1981).

Research Article

Coloured frieze groups

Jarratt, J. D.; Schwarzenberger, R. L. E.

Util. Math. 19, 295-303 (1981).

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Call for papers

Special issue: Dynamical systems and differential equations in applied sciences

Guest editors: Renhai Wang, Mirelson Martins Freitas, Nguyen Anh Tuan.
Submission deadline: 03 January 2026

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