Complex Roots of a Polynomial: 10688 von Tomescu, Ioan, Lau, Kee-Wai, Lossers, O. P., Andersen, K. F., Chapman, R. J., Ciaurri, O., Fernandez, E., De Angelis, V., Deutsch, E., Will, G., Falkowitz, M., Franco, Z., Georghiou, C., Lewandowski, J., Nijenhuis, A., Norfolk, T. S., Stenger, A., GCHQ Problems Group, NCCU Problems Group, WMC Problems Group

Volltext

The Variance of Logarithms: 10690 von Helmbold, Robert, Kim, Wook, Agnew, R. A., Ahmed, Z., Amghibech, S., Andersen, K. F., Anderson, P. J., Bower, G., Burdick, B. S., Chapman, R. J., Donini, D., Fitzsimmons, P. J., Groeneveld, R. A., Hernandez, V., Martin, J., Hertz, E., Huff, B. W., Keselman, G., Kim, S. S., Leslie, R. A., Lindsey, J. H., Lossers, O. P., Martin, R., Nester, D. K., Peng, G., Schindler, V., Scribani, L., H-J. Seiffert, Simeonov, P., Stein, A. H., Tyler, D. B., Verriest, E. I., GCHQ Problems Group, NSA Problems Group, WMC Problems Group

Volltext

Tiling Rectangles with Trominoes: 10641 von Griggs, Jerrold R., Woltermann, Michael, Borchers, B., Callan, D., Chapman, R. J., Chilcott, J., Cull, P., Ferguson, A., Martin, K., Gagola, G. G., Golomb, S. W., Guilford, J., Hakimi, S. L., Schmeichel, E., Haugland, J. K., Jepson, C. H., Johnsonbaugh, R., Kundgen, A., Levandosky, S., Lewis, J. T., Lindsey, J. H., Lossers, O. P., Martin, R., Morris, R., Myerson, G., J H. Nieto, Rykken, E., Sorensen, J., J.Schlosberg, Seaman, W., Ward, J. T., Zeuge, Z., GCHQ Problems Group, WMC Problems Group

Volltext

Problems: 10494-10500 von WMC Problems Group, Spellman, Dennis, Joyner, David, Wardlaw, William P., Russell, Robert A., Huber, Klaus, Redheffer, Ray, Day, David, Lagarias, Jeffrey C., Shor, Peter W.

Volltext

6652 von Bloom, D. M., Group, WMC Problems, Holzsager, Richard

Volltext

E3358 von Wardlaw, William P., WMC Problems Group, Binz, J. C., Stong, Richard, Wilf, Herbert S.

Volltext