Intra-layer synchronization in duplex networks<xref rid="cpb_27_10_100503_fn1" ref-type="fn">*</xref><fn id="cpb_27_10_100503_fn1"><label>*</label><p>Project supported in part by the National Natural Science Foundation of China (Grant Nos. 61573004 and 11501221), the Promotion Program for Young and Middle-aged Teacher in Science and Technology Research of Huaqiao University (Grant No. ZQN-YX301), the Program for New Century Excellent Talents in Fujian Province University in 2016, and the Project of Education and Scientific Research for Middle and Young Teachers in Fujian Province, China (Grant Nos. JAT170027 and JA15030).</p></fn>

Intra-layer synchronization in duplex networks**

Project supported in part by the National Natural Science Foundation of China (Grant Nos. 61573004 and 11501221), the Promotion Program for Young and Middle-aged Teacher in Science and Technology Research of Huaqiao University (Grant No. ZQN-YX301), the Program for New Century Excellent Talents in Fujian Province University in 2016, and the Project of Education and Scientific Research for Middle and Young Teachers in Fujian Province, China (Grant Nos. JAT170027 and JA15030).

Shen Jie¹, Tang Longkun^{1, 2, †}

(color online) The intra-layer synchronization error (a) and x variables (b) of time, here Γ = diag{−1, −1, −1}, c = 91, and d = 0.1. The small picture (b2) inserted in panel (a) is the magnification of one segment in panel (b1).