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Skolem Graceful Signed Stars

Mukti Acharya1, Tarkeshwar Singh2
1Department of Applied Mathematics Delhi College of Engineering Delhi – 110 042, India
2Mathematics Group Birla Institute of Technology and Science Pilani, Goa Campus Goa-403 726, India.

Abstract

In this paper, we obtain a necessary condition for the Skolem gracefulness of the disjoint union of \( k \) signed stars \( K_{1,r_i}, 1 \leq i \leq k \), which we call a \( k \)-signed star \( St(r_1,r_2,\ldots,r_k) \). We also present results on the Skolem gracefulness of the 2-signed star \( St(r_1,r_2) \).

Keywords: Signed star, skolem graceful labeling. 2000 Mathematics Subject Classification: 05C78