สาขางานวิจัย

• Algebra, Discrete Mathematics, & Mathematical Logic

ผลงานตีพิมพ์

1. N. Sonpanow and P. Vejjajiva, Some cardinal characteristics related to the covering number and the uniformity of the meagre ideal. Reports on Mathematical Logic, 56 (2021), 3-14.
2. N. Sonpanow and P. Vejjajiva, Independent families of functions and permutations. Mathematical Logic Quarterly, 66(3) (2020), 311-315.
3. N. Sonpanow and P. Vejjajiva, Factorials and the finite sequences of sets. Mathematical Logic Quarterly, 65(1) (2019), 116-120.
4. N. Sonpanow and P. Vejjajiva, Some properties of infinite factorials. Mathematical Logic Quarterly, 64(3) (2018), 201-206.
5. N. Sonpanow and P. Vejjajiva, A finite-to-one map from the permutations on a set. Bulletin of the Australian Mathematical Society, 95(2) (2017), 177-182.