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				Rogue wave (RW) is one of the most fascinating phenomena in nature and has been observed recently in nonlinear optics and water wave tanks. It is considered as a large and spontaneous nonlinear wave and seems to appear from nowhere and disappear without a trace. The Fokas system is the simplest two-dimensional nonlinear evolution model. In this paper, we firstly study a similarity transformation for transforming the system into a long wave-short wave resonance model. Secondly, based on the similarity transformation and the known rational form solution of the long-wave-short-wave resonance model, we give the explicit expressions of the rational function form solutions by means of an undetermined function of the spatial variable y, which is selected as the Hermite function. Finally, we investigate the rich two-dimensional rogue wave excitation and discuss the control of its amplitude and shape, and reveal the propagation characteristics of two-dimensional rogue wave through graphical representation under choosing appropriate free parameter. The results show that the two-dimensional rogue wave structure is controlled by four parameters: ${\rho _0},\;n,\;k,\;{\rm{and}}\;\omega \left( {{\rm{or}}\;\alpha } \right)$ . The parameter$ {\rho _0}$ controls directly the amplitude of the two-dimensional rogue wave, and the larger the value of$ {\rho _0}$ , the greater the amplitude of the amplitude of the two-dimensional rogue wave is. The peak number of the two-dimensional rogue wave in the$(x,\;y)$ and$(y,\;t)$ plane depends on merely the parameter n but not on the parameter k. When$n = 0,\;1,\;2, \cdots$ , only single peak appears in the$(x,\;t)$ plane, but single peak, two peaks to three peaks appear in the$(x,\;y)$ and$(y,\;t)$ plane, respectively, for the two-dimensional rogue wave of Fokas system. We can find that the two-dimensional rogue wave occurs from the zero background in the$(x,\;t)$ plane, but the two-dimensional rogue wave appears from the line solitons in the$(x,\;y)$ plane and$(y,\;t)$ plane.It is worth pointing out that the rogue wave obtained here can be used to describe the possible physical mechanism of rogue wave phenomenon, and may have potential applications in other (2 + 1)-dimensional nonlinear local or nonlocal models. - 
										Keywords:
										
- two-dimensional rogue wave /
- Fokas system /
- (2 + 1) nonlinear wave model /
- similarity transformation
 [1] Pelinovsky E and Kharf C 2008 Extreme Ocean Waves (Berlin: Springer) [2] Solli R, Ropers C, Koonath P, Jalali B 2007 Nature 450 1054  Google Scholar Google Scholar[3] Montina A, Bortolozzo U, Residori S, Arecchi F T 2009 Phys. Rev. Lett. 103 173901  Google Scholar Google Scholar[4] Wabnitz S 2013 J. Opt. 15 064002  Google Scholar Google Scholar[5] Moslem W M 2011 Phys. Plasm. 18 032301  Google Scholar Google Scholar[6] Laveder D, Passot T T, Sulem P, Sánchez Arriaga G 2011 Phys. Lett. A 375 3997  Google Scholar Google Scholar[7] Bludov Yu V, Konotop V V, Akhmediev N 2009 Phys. Rev. A 80 033610  Google Scholar Google Scholar[8] Efimov V B, Ganshin A N, Kolmakov G V, Mcclintock P V E, Mezhov Deglin L P 2010 Eur. Phys. J. Special Topics 185 181  Google Scholar Google Scholar[9] Shats M, Punzmann H, Xia H 2010 Phys. Rev. Lett. 104 104503  Google Scholar Google Scholar[10] Xia H, Maimbourg T, Punzmann H, Shats M 2012 Phys. Rev. Lett. 109 114502  Google Scholar Google Scholar[11] Vergeles S, Turitsyn S K 2011 Phys. Rev. A 83 061801  Google Scholar Google Scholar[12] Stenflo L, Marklund M 2010 J. Plasma Phys. 76 293  Google Scholar Google Scholar[13] Yan Z Y 2010 Commun. Theor. Phys. 54 947  Google Scholar Google Scholar[14] Demircan A, Amiranashvili S, Brée C, Mahnke C, Mitschke F, Steinmeyer G 2012 Sci. Rep. 2 850  Google Scholar Google Scholar[15] Driben R, Babushkin I 2012 Opt. Lett. 37 5157  Google Scholar Google Scholar[16] Marsal N, Caullet V, Wolfersberger D, Sciamanna M 2014 Opt. Lett. 39 3690  Google Scholar Google Scholar[17] Residori S, Bortolozzo U, Montina A, Lenzini F, Arecchi F T 2012 Fluctuation Noise Lett. 11 1240014  Google Scholar Google Scholar[18] Soto Crespo J M, Grelu P, Akhmediev N 2011 Phys. Rev. E 84 016604  Google Scholar Google Scholar[19] Zamora M. J, Garbin B, Barland S, Giudici M, Rios Leite J R, Masoller C, Tredicce J R 2013 Phys. Rev. A 87 035802  Google Scholar Google Scholar[20] Lecaplain C, Grelu P, Soto Crespo J M, Akhmediev N 2012 Phys. Rev. Lett. 108 233901  Google Scholar Google Scholar[21] Buccoliero D, Steffensen H, Ebendorff Heidepriem H, Monro T M, Bang O 2011 Opt. Express 19 17973  Google Scholar Google Scholar[22] Finot C, Hammani K, Fatome J, Dudley J M, Millot G 2010 IEEE J. Quantum Electron. 46 205  Google Scholar Google Scholar[23] Hammani K, Finot C 2012 Opt. Fiber Technol. 18 93  Google Scholar Google Scholar[24] Majus D, Jukna V, Valiulis G, Faccio D, Dubietis A 2011 Phys. Rev. A 83 025802  Google Scholar Google Scholar[25] Hammani K, Finot C, Millot G 2009 Opt. Lett. 34 1138  Google Scholar Google Scholar[26] Antikainen A, Erkintalo M, Dudley J M, Genty G 2012 Nonlinearity 25 73  Google Scholar Google Scholar[27] Akhmediev N, Dudley J M, Solli D R, Turitsyn S K 2013 J. Opt. 15 060201  Google Scholar Google Scholar[28] Chabchoub A, Hoffmann N P, Akhmediev N 2011 Phys. Rev. Lett. 106 204502  Google Scholar Google Scholar[29] Bailung H, Sharma S K, Nakamura Y 2011 Phys. Rev. Lett. 107 255005  Google Scholar Google Scholar[30] Randoux S, Suret P 2012 Opt. Lett. 37 500  Google Scholar Google Scholar[31] 潘昌昌, Baronio F, 陈世华 2020 物理学报 69 010504  Google Scholar Google ScholarPan C C, Baronio F, Chen S H 2020 Acta Phys. Sin. 69 010504  Google Scholar Google Scholar[32] 李再东, 郭奇奇 2020 物理学报 69 017501  Google Scholar Google ScholarLi Z D and Guo Q Q 2020 Acta Phys. Sin. 69 017501  Google Scholar Google Scholar[33] 陈智敏, 段文山 2020 物理学报 69 014701  Google Scholar Google ScholarChen Z M, Duan W S 2020 Acta Phys. Sin. 69 014701  Google Scholar Google Scholar[34] 李淑青, 杨光晔, 李禄 2014 物理学报 63 104215  Google Scholar Google ScholarLi S Q, Yang G Y, Li L 2014 Acta Phys. Sin. 63 104215  Google Scholar Google Scholar[35] 张解放, 戴朝卿 2016 物理学报 65 050501  Google Scholar Google ScholarZhang J F, Dai C Q 2016 Acta Phys. Sin. 65 050501  Google Scholar Google Scholar[36] 胡文成, 张解放, 赵辟, 楼吉辉 2013 物理学报 62 024216  Google Scholar Google ScholarHu W C, Zhang J F, Zhao B, Lou J H 2013 Acta Phys. Sin. 62 024216  Google Scholar Google Scholar[37] Fokas A S 1994 Inverse Problems 10 19  Google Scholar Google Scholar[38] Chen J C, Chen Y 2014 J. Nonlinear Math. Phys. 21 454  Google Scholar Google Scholar[39] Radha R, Lakshmanan M 1997 Chaos, Solitons and Fractals 8 17  Google Scholar Google Scholar[40] Villarroel J, Prada J, Estévez P G 2009 Stud. Appl. Math. 122 395  Google Scholar Google Scholar[41] Estévez P G 1999 J. Math. Phys. 40 1406  Google Scholar Google Scholar[42] Rao J G, Wang L H, Zhang Y, He J S 2015 Commun. Theor. Phys. 64 605  Google Scholar Google Scholar[43] Chen T T, Hu P Y, He J S 2019 Commun. Theor. Phys. 71 496  Google Scholar Google Scholar[44] Rao J G, Mihalacheb D, Cheng Y, He J S 2019 Phys.Lett. A 383 1138  Google Scholar Google Scholar[45] Yan Z Y 2011 J. Math. Anal. Appl. 380 689 [46] Benney D J 1976 Stud. Appl. Math. 55 93  Google Scholar Google Scholar[47] Kivshar Yu S 1992 Opt. Lett. 17 1322  Google Scholar Google Scholar[48] Chowdhury A, Tataronis J A 2008 Phys. Rev. Lett. 100 153905  Google Scholar Google Scholar[49] Zakharov V E 1972 Sov. Phys. JETP 35 908  Google Scholar Google Scholar[50] Benney D J 1977 Stud. Appl. Math. 56 81  Google Scholar Google Scholar[51] Djordjevic V D, Redekopp L G 1977 J. Fluid Mech. 79 703  Google Scholar Google Scholar[52] Ma Y C, Redekopp L G 1979 Phys. Fluids 22 1872  Google Scholar Google Scholar[53] Chow K W, Chan H N, Kedziora D J, Grimshaw R H J 2013 J. Phys. Soc. Jpn. 82 074001  Google Scholar Google Scholar[54] Chen S H, Grelu P, Soto Crespo J M 2014 Phys. Rev. E 89 011201  Google Scholar Google Scholar[55] Abramowitz M, Stegun I A 1965 Handbook of Mathematical Functions (New York: Dover Publications) 
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图 1 ${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 0$ ,$k = 0$ 时, 由(22)式所确定的二维怪波激发 (a), (d)$y = 0$ 时在$\left( {x, t} \right)$ 平面上的演化图和相应的等高线图; (b), (e)$t = 0$ 时在$\left( {x, y} \right)$ 平面上的演化图和相应的等高线图; (c), (f)$x = 0$ 时在$\left( {y, t} \right)$ 平面的演化图和相应的等高线图Figure 1. Cross-sections of two-dimensional rogue wave propagations (top row) and contour plots (bottom row) for the density distribution ${\left| {u\left( {x, y, t} \right)} \right|^2}$ given in Eq. (22) for${\rho _0} = 1.5,\; \alpha =$ ${\left| \omega \right|^{ - 1}} = 1,\; n = 0$ with$k = 0$ : (a), (d)$\left( {x, t} \right)$ -plan with$y = 0$ ; (b), (e)$\left( {x, y} \right)$ -space with$t = 0$ ; (c), (f)$\left( {y, t} \right)$ -plane with$x = 0$ .图 2 ${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 0$ ,$k = 1$ 时, 由(22)式所确定的二维怪波激发 (a), (d)$y = 0$ 时在$\left( {x, t} \right)$ 平面上的演化图和相应的等高线图; (b), (e)$t = 0$ 时在$\left( {x, y} \right)$ 平面上的演化图和相应的等高线图; (c), (f)$x = 0$ 时在$\left( {y, t} \right)$ 平面的演化图和相应的等高线图Figure 2. Cross-sections of two-dimensional rogue wave propagations (top row) and contour plots (bottom row) for the density distribution ${\left| {u\left( {x, y, t} \right)} \right|^2}$ given in Eq. (22) for${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 0$ with$k = 1$ : (a), (d)$\left( {x, t} \right)$ -plane with$y = 0$ ; (b), (e)$\left( {x, y} \right)$ -space with$t = 0$ ; (c), (f)$\left( {y, t} \right)$ -plane with$x = 0$ .图 3 ${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 1$ ,$k = 0$ 时, 由(22)式所确定的二维怪波激发 (a), (d)$y = 1$ 时在$\left( {x, t} \right)$ 平面上的演化图和相应的等高线图; (b), (e)$t = 0$ 时在$\left( {x, y} \right)$ 平面上的演化图和相应的等高线图; (c), (f)$ x=0 $ 时在$ (y, t) $ 平面的演化图和相应的等高线图Figure 3. Cross-sections of two-dimensional rogue wave propagations (top row) and contour plots (bottom row) for the density distribution ${\left| {u\left( {x, y, t} \right)} \right|^2}$ given in Eq. (22) for${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 1$ with$k = 0$ : (a), (d)$\left( {x, t} \right)$ -plane with$y = 1$ ; (b), (e)$\left( {x, y} \right)$ -space with$t = 0$ ; (c), (f)$\left( {y, t} \right)$ -plane with$x = 0$ .图 4 ${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1$ ,$n = 1$ ,$k = 1$ 时, 由(22)式所确定的二维怪波激发 (a), (d)$y = 1$ 时在$\left( {x, t} \right)$ 平面上的演化图和相应的等高线图; (b), (e)$t = 0$ 时在$\left( {x, y} \right)$ 平面上的演化图和相应的等高线图; (c), (f)$x = 0$ 时在$\left( {y, t} \right)$ 平面的演化图和相应的等高线图Figure 4. Cross-sections of two-dimensional rogue wave propagations (top row) and contour plots (bottom row) for the density distribution ${\left| {u\left( {x, y, t} \right)} \right|^2}$ given in Eq. (22) for${\rho _0} = 1.5$ ,$\alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 1$ with$k = 1$ : (a), (d)$\left( {x, t} \right)$ -plane with$y = 1$ ; (b), (e)$\left( {x, y} \right)$ -space with$t = 0$ ; (c), (f)$\left( {y, t} \right)$ -plane with$x = 0$ .图 5 ${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 2,\; k = 2$ 时, 由(22)式所确定的二维怪波激发 (a), (d)$y = 0$ 时在$\left( {x, t} \right)$ 平面上的演化图和相应的等高线图; (b), (e)$t = 0$ 时在$\left( {x, y} \right)$ 平面上的演化图和相应的等高线图; (c), (f)$x = 0$ 时在$\left( {y, t} \right)$ 平面的演化图和相应的等高线图Figure 5. Cross-sections of two-dimensional rogue wave propagations (top row) and contour plots (bottom row) for the density distribution ${\left| {u\left( {x, y, t} \right)} \right|^2}$ given in Eq. (22) for${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 2$ with$k = 2$ : (a), (d)$\left( {x, t} \right)$ -plane with$y = 0$ ; (b), (e)$\left( {x, y} \right)$ -space with$t = 0$ ; (c), (f)$\left( {y, t} \right)$ -plane with$x = 0$ .图 6 由(22)式确定的二维怪波在 $\left( {x, t} \right)$ 平面上的演化(这里取${\rho _0}{{ = 1}}{{.5}}$ ,$\alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 0$ ,$k = 3$ ) (a)$t = - 7$ ; (b)$t = - 3$ ; (c)$t = 0$ ; (d)$t = 0.5$ ; (e)$t = 5$ ; (f)$t = 10$ Figure 6. Cross-sections of two-dimensional wave propagations (top row) for the density distribution ${\left| {u\left( {x, y, t} \right)} \right|^2}$ given in Eq. (22) for${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 0$ with$k = 3$ : (a)$t = - 7$ ; (b)$t = - 3$ ; (c)$t = 0$ ; (d)$t = 0.5$ ; (e)$t = 5$ ; (f)$t = 10$ .图 7 由(22)式确定的二维怪波在 $\left( {x, t} \right)$ 平面上的演化(这里取${\rho _0}{{ = 1}}{{.5}}$ ,$\alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 0$ ,$k = 3$ ) (a)$y = - 3$ ; (b)$y = -1$ ; (c)$y = 0$ ; (d)$y = 0.5$ ; (e)$y = 2$ ; (f)$y = 3$ Figure 7. Cross-sections of two-dimensional rogue wave propagations (top row) for the density distribution ${\left| {u\left( {x, y, t} \right)} \right|^2}$ given in Eq. (22) for${\rho _0} = 1.5,\; \alpha = {\left| \omega \right|^{ - 1}} = 1,\; n = 0$ with$k = 3$ : (a)$y = - 3$ ; (b)$y = - 1$ ; (c)$y = 0$ ; (d)$y = 0.5$ ; (e)$y = 2$ ; (f)$y = 3$ .
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[1] Pelinovsky E and Kharf C 2008 Extreme Ocean Waves (Berlin: Springer) [2] Solli R, Ropers C, Koonath P, Jalali B 2007 Nature 450 1054  Google Scholar Google Scholar[3] Montina A, Bortolozzo U, Residori S, Arecchi F T 2009 Phys. Rev. Lett. 103 173901  Google Scholar Google Scholar[4] Wabnitz S 2013 J. Opt. 15 064002  Google Scholar Google Scholar[5] Moslem W M 2011 Phys. Plasm. 18 032301  Google Scholar Google Scholar[6] Laveder D, Passot T T, Sulem P, Sánchez Arriaga G 2011 Phys. Lett. A 375 3997  Google Scholar Google Scholar[7] Bludov Yu V, Konotop V V, Akhmediev N 2009 Phys. Rev. A 80 033610  Google Scholar Google Scholar[8] Efimov V B, Ganshin A N, Kolmakov G V, Mcclintock P V E, Mezhov Deglin L P 2010 Eur. Phys. J. Special Topics 185 181  Google Scholar Google Scholar[9] Shats M, Punzmann H, Xia H 2010 Phys. Rev. Lett. 104 104503  Google Scholar Google Scholar[10] Xia H, Maimbourg T, Punzmann H, Shats M 2012 Phys. Rev. Lett. 109 114502  Google Scholar Google Scholar[11] Vergeles S, Turitsyn S K 2011 Phys. Rev. A 83 061801  Google Scholar Google Scholar[12] Stenflo L, Marklund M 2010 J. Plasma Phys. 76 293  Google Scholar Google Scholar[13] Yan Z Y 2010 Commun. Theor. Phys. 54 947  Google Scholar Google Scholar[14] Demircan A, Amiranashvili S, Brée C, Mahnke C, Mitschke F, Steinmeyer G 2012 Sci. Rep. 2 850  Google Scholar Google Scholar[15] Driben R, Babushkin I 2012 Opt. Lett. 37 5157  Google Scholar Google Scholar[16] Marsal N, Caullet V, Wolfersberger D, Sciamanna M 2014 Opt. Lett. 39 3690  Google Scholar Google Scholar[17] Residori S, Bortolozzo U, Montina A, Lenzini F, Arecchi F T 2012 Fluctuation Noise Lett. 11 1240014  Google Scholar Google Scholar[18] Soto Crespo J M, Grelu P, Akhmediev N 2011 Phys. Rev. E 84 016604  Google Scholar Google Scholar[19] Zamora M. J, Garbin B, Barland S, Giudici M, Rios Leite J R, Masoller C, Tredicce J R 2013 Phys. Rev. A 87 035802  Google Scholar Google Scholar[20] Lecaplain C, Grelu P, Soto Crespo J M, Akhmediev N 2012 Phys. Rev. Lett. 108 233901  Google Scholar Google Scholar[21] Buccoliero D, Steffensen H, Ebendorff Heidepriem H, Monro T M, Bang O 2011 Opt. Express 19 17973  Google Scholar Google Scholar[22] Finot C, Hammani K, Fatome J, Dudley J M, Millot G 2010 IEEE J. Quantum Electron. 46 205  Google Scholar Google Scholar[23] Hammani K, Finot C 2012 Opt. Fiber Technol. 18 93  Google Scholar Google Scholar[24] Majus D, Jukna V, Valiulis G, Faccio D, Dubietis A 2011 Phys. Rev. A 83 025802  Google Scholar Google Scholar[25] Hammani K, Finot C, Millot G 2009 Opt. Lett. 34 1138  Google Scholar Google Scholar[26] Antikainen A, Erkintalo M, Dudley J M, Genty G 2012 Nonlinearity 25 73  Google Scholar Google Scholar[27] Akhmediev N, Dudley J M, Solli D R, Turitsyn S K 2013 J. Opt. 15 060201  Google Scholar Google Scholar[28] Chabchoub A, Hoffmann N P, Akhmediev N 2011 Phys. Rev. Lett. 106 204502  Google Scholar Google Scholar[29] Bailung H, Sharma S K, Nakamura Y 2011 Phys. Rev. Lett. 107 255005  Google Scholar Google Scholar[30] Randoux S, Suret P 2012 Opt. Lett. 37 500  Google Scholar Google Scholar[31] 潘昌昌, Baronio F, 陈世华 2020 物理学报 69 010504  Google Scholar Google ScholarPan C C, Baronio F, Chen S H 2020 Acta Phys. Sin. 69 010504  Google Scholar Google Scholar[32] 李再东, 郭奇奇 2020 物理学报 69 017501  Google Scholar Google ScholarLi Z D and Guo Q Q 2020 Acta Phys. Sin. 69 017501  Google Scholar Google Scholar[33] 陈智敏, 段文山 2020 物理学报 69 014701  Google Scholar Google ScholarChen Z M, Duan W S 2020 Acta Phys. Sin. 69 014701  Google Scholar Google Scholar[34] 李淑青, 杨光晔, 李禄 2014 物理学报 63 104215  Google Scholar Google ScholarLi S Q, Yang G Y, Li L 2014 Acta Phys. Sin. 63 104215  Google Scholar Google Scholar[35] 张解放, 戴朝卿 2016 物理学报 65 050501  Google Scholar Google ScholarZhang J F, Dai C Q 2016 Acta Phys. Sin. 65 050501  Google Scholar Google Scholar[36] 胡文成, 张解放, 赵辟, 楼吉辉 2013 物理学报 62 024216  Google Scholar Google ScholarHu W C, Zhang J F, Zhao B, Lou J H 2013 Acta Phys. Sin. 62 024216  Google Scholar Google Scholar[37] Fokas A S 1994 Inverse Problems 10 19  Google Scholar Google Scholar[38] Chen J C, Chen Y 2014 J. Nonlinear Math. Phys. 21 454  Google Scholar Google Scholar[39] Radha R, Lakshmanan M 1997 Chaos, Solitons and Fractals 8 17  Google Scholar Google Scholar[40] Villarroel J, Prada J, Estévez P G 2009 Stud. Appl. Math. 122 395  Google Scholar Google Scholar[41] Estévez P G 1999 J. Math. Phys. 40 1406  Google Scholar Google Scholar[42] Rao J G, Wang L H, Zhang Y, He J S 2015 Commun. Theor. Phys. 64 605  Google Scholar Google Scholar[43] Chen T T, Hu P Y, He J S 2019 Commun. Theor. Phys. 71 496  Google Scholar Google Scholar[44] Rao J G, Mihalacheb D, Cheng Y, He J S 2019 Phys.Lett. A 383 1138  Google Scholar Google Scholar[45] Yan Z Y 2011 J. Math. Anal. Appl. 380 689 [46] Benney D J 1976 Stud. Appl. Math. 55 93  Google Scholar Google Scholar[47] Kivshar Yu S 1992 Opt. Lett. 17 1322  Google Scholar Google Scholar[48] Chowdhury A, Tataronis J A 2008 Phys. Rev. Lett. 100 153905  Google Scholar Google Scholar[49] Zakharov V E 1972 Sov. Phys. JETP 35 908  Google Scholar Google Scholar[50] Benney D J 1977 Stud. Appl. Math. 56 81  Google Scholar Google Scholar[51] Djordjevic V D, Redekopp L G 1977 J. Fluid Mech. 79 703  Google Scholar Google Scholar[52] Ma Y C, Redekopp L G 1979 Phys. Fluids 22 1872  Google Scholar Google Scholar[53] Chow K W, Chan H N, Kedziora D J, Grimshaw R H J 2013 J. Phys. Soc. Jpn. 82 074001  Google Scholar Google Scholar[54] Chen S H, Grelu P, Soto Crespo J M 2014 Phys. Rev. E 89 011201  Google Scholar Google Scholar[55] Abramowitz M, Stegun I A 1965 Handbook of Mathematical Functions (New York: Dover Publications) 
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