A tight bound on the projective dimension of four quadrics
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Pure and Applied Algebra"
DOI: 10.1016/j.jpaa.2017.10.005
Abstract: Motivated by Stillman's question, we show that the projective dimension of an ideal generated by four quadric forms in a polynomial ring is at most 6; moreover, this bound is tight. We achieve this bound,… read more here.
Keywords: dimension; tight bound; four quadrics; bound projective ... See more keywords
A Tight Bound on BER of MCIK-OFDM With Greedy Detection and Imperfect CSI
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2017.2747549
Abstract: This letter first investigates bit error rate (BER) of Multi-Carrier Index Keying–Orthogonal Frequency Division Multiplexing using a low-complexity greedy detector (GD). We derive a tight, closed-form expression for the BER of the GD in the… read more here.
Keywords: tight bound; csi; greedy; ber ... See more keywords