Download - Nimertis Mauridis(Math)

Transcript
  • 1

    1:

    BESSEL

    1.1. BESSEL

    BESSEL

    1

    2

    :

    essel (

    ) Bessel

    1 2 , , .

    [65] :

    [65] :

    (1.1) :

    .

  • 2

    1.2.

    BESSEL

    Bessel :

    :

    .

    , , (1.5) (1.1)

    (1.6) (1.4).

    1.3.

    BESSEL

    BESSEL

    1

    2

    Bessel,

    , :

    (1.5) , .

    (1.7) ,

    Bessel 1 2

    , , .

    (1.7) :

    .

  • 3

    Bessel 1

    [65] :

    :

    ,

    ,

    , Pochhammer.

    Bessel 1

    Bessel 1 :

    :

    Bessel 2 (

    MacDonald) , [65] :

    :

    1.4.

    Bessel 1 2

    [65]:

  • 4

    .

  • 5

    1.5.

    BESSEL

    , : ,

    , , , ,

    , , /,

    [18,19,22,25,34,43,53,54,55,59,64].

    ,

    Rosenthal (1962) [54] Ross (1970) [55]

    .

    ,

    Penfold (2006) [49].

    Q- Marcum,

    radar [10,16,17].

    ,

    ,

    (1984),

    .

    Gronwall (1932) [26]

    . ,

    [57]. ,

    .

    ,

    .

    ,

    .

  • 6

    ,

    Riccatti.

    ,

    Turn

    Bessel.

    Turn

    Bessel

    .

    1 -

    (DDEs) Bessel

    ,

    Riccati

    .

    , .

    , -

    .

    , . ,

    Turn

    . ,

    :

    .

    1.6.

    (

    ) [2,3,28,44,67]

    :

  • 7

    :

    (Completely

    Monotonic)

    ,

    (Strictly Completely Monotonic)

    ,

    (Absolutely Monotonic)

    ,

    (Strictly Absolutely Monotonic)

    , .

    ( )

    (Log - Convex), (Convex), :

    .

    (Convex)

    .

    :

    .

    ( )

    (Log - Concave), (Concave),

    :

    .

    (Concave) , .

  • 8

    :

    T ()

    .

    A

    ,

    .

    M

    .

    , :

    (Berstein - Widder) [67]:

    :

    ,

    .

  • 9

    2:

    BESSEL 1

    2.1.

    (2.1) Baricz (2010) [12].

    ,

    (1.9). ,

    Paris (1984) [48]

    , Robert

    (1990) [53] , Joshi Bissu (1991) [32]

    . , (2.1)

    , .

    :

    H

    ,

    .

    (2.2) Baricz (2010) [12]

    Bordelon [20] Ross

    (1973) [56] Laforgia (1991) [36]

    , ,

    (1.9). (2.2)

  • 10

    .

    :

    , .

    (2.3) Laforgia (1991) [36]

    Soni (1965) [62]:

    (2.3) Baricz (2010) [12]

    ,

    Gronwall (1932) [26]:

    (2.4) Baricz (2010) [12]

    (2.3),

    Gronwall [26].

    . (2.4)

    (2.3).

  • 11

    (2.5) Baricz Sun (2010) [17]

    .

    (2.5)

    (2.3), (2.5)

    ,

    (2.3).

    (2.6) Baricz (2009) [10]

    .

    ,

    (2.6)

    (2.3). , (2.6)

    (2.5).

    -

    Bessel 1 .

    (2.7) (1990)

    [29]

    (2.1).

  • 12

    H (2.8) Joshi Bissu (1996) [33]

    .

    (2.8)

    (2.1) .

    (2.9) Sitnik (1995) [60].

    Sitnik (2.9)

    (2.1).

    :

    , (2.7)

    (2.9).

    (2.10) Baricz (2010) [12]

    .

    ,

    (2.10) (2.1).

    (2.11) Baricz (2010) [12]

    .

    , (2.11)

    (2.1).

  • 13

    :

    (2.10) (2.11),

    , (2.10)

    (2.11).

    (2.12) Baricz (2010) [12]

    . ,

    (2.12) (2.3).

    ,

    , (2.12)

    (2.4)

    , (2.12)

    (2.5). ,

    , (2.6)

    (2.12).

    :

    , (2.6) (2.12)

    , ,

    . (2.12)

    , .

  • 14

    2.2.

    (2.13) Laforgia (1991) [36].

    Soni [62]:

    Soni (1965) Nasell (1974) [45],

    . , (2.13)

    Bordelon [20] Ross (1973) [56]

    , Paris (1984) [48] Joshi Bissu (1991)

    [32]

    .

    H (2.14) Joshi Bissu (1991) [32]

    Nasell (1974) [45]:

    Soni [62],

    . , (2.14)

    (2.13).

    (2.15) Baricz (2009) [9]

    ,

    ,

  • 15

    .

    (2.15) (2.13)

    .

    (2.16) Baricz (2010) [12]

    ,

    .

    (2.16)

    (2.13).

    H (2.17) Joshi Bissu (1996) [33]

    .

    (2.17)

    (2.13), .

    (2.18) Sitnik (1995) [60].

  • 16

    (2.19) Baricz (2010) [12]

    .

    :

    (2.15) (2.19)

    .

    (2.20) Baricz (2010) [12]

    .

    , (2.20)

    (2.13).

    :

    (2.19) (2.20),

    ,

    , (2.20)

    (2.19).

  • 17

    2.3.

    H (2.21) Soni (1965) [62]

    Nasell (1974) [45]

    . ,

    Gupta (1966) [27], De Sitter

    Goovaerts (1972) [61] , Lorch (1967)

    [41] Whittaker. ,

    (2.21) Cochran (1967) [21]

    Jones [31] Reudink (1968) [52]. , Jones

    (1968) :

    Cochran (1967) Reudink (1968) :

    :

    Joshi/Bissu Laforgia (2.21)

    Soni (2.13)

    , .

    (2.22) Nasell (1974) [45]

    (2.21) Soni [62].

  • 18

    (2.23)

    (1990) [29] Mittag-Leffler

    Bessel 1 [65]:

    Bessel 1

    [65]:

    (2.24) (1991)

    [30] Baricz (2010) [12]

    .

    , (2.24)

    (2.21) Soni.

    (2.25) Baricz (2010) [12]

    Bessel 1 . ,

    , :

  • 19

    , (2.25)

    (2.24).

    :

    (2.24) (2.25)

    ,

    , .

    (2.26) (2012) [35]

    (1.15.iii) (1.15.iv)

    (

    ).

    Bessel 1

    .

    (2.27) (2012) [35]

    ( ) :

    ,

    ,

    (2.27)

    (2.24),

    , .

  • 20

    (2.28) (2012) [35]

    ( )

    [65]:

    ,

    :

    (2.28) (2.24),

    .

    (2.29) (2012) [35]

    (

    ).

    :

    (2.29) (2.28),

    .

  • 21

    ,

    Bessel 1 .

    (2.30) (2012) [35]

    .

    (2.31) Segura (2011) [57].

    ,

    :

    ,

    :

    :

    (2.31) :

  • 22

    .

    (2.32) Segura (2011) [57]

    :

    , (2.31).

    (2.32)

    .

    2.4.

    Bessel 1

    .

    (2.33)

    (1990) [29] Mittag-Leffler

    Bessel 1 [64]:

  • 23

    Bessel 1

    :

    (2.34) Baricz (2010) [12]

    , .

    (2.35) Baricz (2010) [12]

    , . ,

    (2012) [35]

    ( ,

    ).

    (2.36) (2012) [35]

    (1.15.iii) (1.15.iv),

    (

    ), Mittag-Leffler

    Bessel 1 [65]:

  • 24

    [65]:

    :

    Bessel 1

    . (2.34)

    Laforgia Natalini (2010) [40] Segura (2011) [57].

    (2.37) (2012) [35],

    (2.27)

    (

    ) [65]:

    ,

    ,

    (2.37)

    (2.34),

    , .

    (2.38) (2012) [35]

    , (2.28),

  • 25

    (

    ) [65]:

    ,

    :

    (2.38) (2.34),

    .

    (2.39) (2012) [35]

    , (2.29),

    (

    ).

    :

    (2.39) (2.38),

    .

    ,

    Bessel 1 .

    (2.40) (2012) [35]

    . ,

  • 26

    ,

    . [65]:

    :

    :

    (2012) [35] ,

    :

    , .

    ,

    , ,

    . ,

    :

    (2.41) (2.42) Segura (2011)

    [57]

    (2.31).

    :

  • 27

    ,

    .

    :

    (2.42)

    (2.41), :

    ,

    .

    2.5.

    (2.43) (2012) [35]

    (

    ), (1.15.iv),

    Bessel (1.7). ,

    (2.43) Segura (2011) [57]

    (2.31).

  • 28

    (2.44) Segura (2011) [57]

    :

    (2.31).

    (2.44)

    . :

    , (2.44) Gronwall

    (1932) [26], . , Phillips

    Malin (1950) [51] , . ,

    (2.44) Amos (1974) [4],

    .

    :

    (1.15.iii) (1.15.iv),

    (2.44)

    Turn:

    (2.45) Segura (2011) [57]

    :

  • 29

    (2.31).

    (2.45)

    . :

    (2.45) Amos [4],

    .

    2.6.

    (2.46) Gronwall (1932) [26].

    :

    (2.46) Gronwall Laforgia

    (2.4),

    .

    :

    (2.5)

    Gronwall,

    .

  • 30

    (2.47) Baricz Sun (2009) [16]

    Gronwall [26] Nasell [45]

    (2.6).

    :

    (2.46) (2.47)

    ,

    (2.47) .

    (2.48) (2012) [35]

    (1.15.iv)

    ,

    .

    (2.48)

    , , .

    (2.49) (2.50) Segura (2011)

    [57] :

    (2.31).

  • 31

    ,

    , .

    (2.49) (2012)

    [35]

    (

    ), (1.15.iv),

    Bessel (1.7).

    Baricz (2009) [9] Laforgia/Natalini (2010) [40]

    .

    :

    (2.50)

    ,

    .

    (2.51) Segura (2011) [57]

    :

    Turn:

    Bessel 1 .

    (2.52) Phillips Malin (1950) [51]

    Turn:

  • 32

    ,

    Thiruvenkatachar Nanjundiah (1951), Amos (1974) [4],

    Joshi/Bissu (1991) [32] Baricz (2010)

    [12].

    :

    (2.49)

    (2.52)

    (2.53) Segura (2011) [57]

    :

    (2.31).

    (2.53) ,

    :

    .

  • 33

    2.7.

    (2.54) Segura (2011) [57]

    (1.15.iii) (1.15.iv)

    Riccatti:

    (2.54).

    :

    , :

    (2.54),

    .

  • 34

    2.8.

    (2.55) Laforgia (1991) [36]

    (2.3) (2.13).

    (2.56) Joshi Bissu (1996) [33]

    (1.15.iv)

    (2.55)

    .

    (2.3).

    (2.57) Baricz (2010) [12]

    (2.4) (2.19). T

    (2.57)

    (2.55),

    .

  • 35

    :

    A

    , (2.56) (2.57)

    .

    (2.58) Baricz (2010) [12]

    (2.4) (2.20).

    , (2.58) (2.57).

    :

    A

    , (2.56) (2.58)

    .

    (2.59) Baricz (2010) [12]

    (2.6) (2.15)

    . , (2.59)

    (2.55).

  • 36

    ,

    (2.59)

    Laforgia (2.56).

    :

    A

    , (2.56) (2.59)

    .

    2.9.

    (2.60) Laforgia (1991) [36]

    (2.3) (2.13).

    (2.61) Joshi Bissu (1996) [33]

    (1.15.iv)

    .

  • 37

    :

    O Joshi Bissu

    ,

    (2.61)

    (2.60). .

    .

    . ,

    ,

    . ,

    (2.61) .

    (2.62) Baricz (2010) [12]

    (2.4) (2.19).

    , (2.62)

    (2.60).

    (2.63) Baricz (2010) [12]

    (2.4) (2.20)

    (2.62).

  • 38

    (2.64) Baricz (2010) [12]

    (2.15) (2.19).

    (2.60). , ,

    . , (2.64)

    (2.62).

    2.10. O TURAN

    (2.65) Baricz (2009) [6]

    ( ) .

    .

    (2.65) Thiruvenkatachar Nanjundiah

    (1951) [63], Amos (1974) [4] Joshi/Bissu (1991)

    [32]. , Segura (2011) [57]

    (2.31).

    :

    , Lorch (1994) [42] (2.65)

    Turn (generalized

    Turnian):

    Turn (2.65) .

  • 39

    (2.66) ,

    Thiruvenkatachar Nanjundiah (1951) [63], Amos (1974) [4],

    Joshi Bissu (1991) [32] Baricz

    (2010) [12] Segura (2011) [57].

    :

    ,

    Turn (2.66) .

    (2.67) Baricz (2010) [12]

    , .

    (2.68) Baricz (2010) [12]

    , .

    Segura (2011) [57] ,

    , (2.31)

  • 40

    Bessel 1 .

    . (2.65)

    (2.66)

    .

  • 41

    3:

    BESSEL 2

    3.1.

    (3.1) Laforgia (1991) [36]

    .

    Ross (1970) [55],

    Bordelon (1973) [20] Paris (1984) [48].

    :

    ,

    ,

    .

    H (3.2) Laforgia (1991) [36]

    o

    , ,

    . , (3.2)

    (3.1).

  • 42

    (3.3) Joshi Bissu (1991) [32]

    (2.1)

    ,

    .

    (3.3)

    (3.1).

    :

    H

    , ,

    .

    (3.4) Joshi Bissu (1991) [32]

    ,

    .

    (3.5) Laforgia (1991) [36]

    ,

    (3.1) (3.2). (3.1)

    .

    ,

    ,

  • 43

    . , ,

    (3.5)

    .

    :

    ,

    ,

    ,

    .

    (3.6) Laforgia (1991) [36]

    Soni

    Bessel 2 :

    .

    (3.7) Joshi Bissu (1996) [33].

    , (3.5)

    (3.7).

    :

    Bessel 2 :

  • 44

    (3.8) Baricz (2010) [12]

    ,

    . ,

    Weniger Cizek (1989) [66]

    [24]:

    .

    ,

    (3.8) (3.1),

    .

    H (3.9) (3.8).

    (3.10) Miller Samko (2001) [44]

    .

    (3.10)

    Laforgia (3.5),

    . ,

    , (3.10)

    (3.5) (2.5)

    Bessel 1 .

    ,

    (3.10)

    (3.8).

  • 45

    :

    :

    .

    3.2.

    (3.11) ,

    Bessel 1 Soni (1965)

    [62].

    (3.12) Segura (2011) [57]

    .

    ,

    , :

    .

  • 46

    (3.13) - (3.16) Segura (2011) [57]

    :

    :

    (3.13) (3.14)

    , ,

    (3.15) (3.16)

    , .

    (3.13) ,

    .

    (3.14)

    ,

    (3.15)

    .

  • 47

    :

    , ,

    ,

    .

    :

    ,

    .

    (3.17) Segura (2011) [57]

    Bessel 2 .

    :

    (3.16)

    (3.17).

  • 48

    3.3.

    (3.18) Segura (2011) [57],

    (1.16.iii) (1.16.iv)

    Riccatti:

    (3.18).

    (3.18).

    (3.19) (3.18).

  • 49

    3.4.

    (3.20) Segura (2011) [57]

    :

    (3.13) (3.16).

    (3.22)

    .

    (3.21) Segura (2011) [57]

    :

    (3.13) (3.16).

    (3.21)

    .

  • 50

    :

    (3.20)

    (3.21),

    (3.20) .

    (3.22) Segura (2011) [57]

    :

    (3.13) (3.16).

    (3.22)

    .

    (3.23) Segura (2011) [57]

    :

    (3.13) (3.16).

    (3.23)

    .

  • 51

    (3.24) Segura (2011) [57]

    Bessel 2

    .

    :

    (3.23)

    (3.24).

    3.5. O TURAN

    Segura (2011) [57]

    , ,

    Bessel 1

    , .

    (3.26) Segura (2011) [57]

    ,

    :

  • 52

    ,

    ,

    , (3.26) .

    :

    Turn :

    .

    E Turn

    . , .

    :

    ,

    .

    (3.27) Segura (2011) [57]

    :

    . :

    ,

  • 53

    :

    , (3.27)

    .

    (3.28) Segura (2011) [57]. ,

    . :

    ,

    . ,

    , :

    (3.29) Segura (2011) [57]

    (3.28),

  • 54

    [1] M. ABRAMOWITZ AND I. A. STEGUN, Handbook of Mathematical

    functions with Formulas, Graphs and Mathematical Tables, National Bureau

    of Standards (1964)

    [2] H. ALZER AND C. BERG, Some classes of completely monotonic

    functions, Annales Acad. Sci. Fenn. Math. 27(2) (2002), 445-460

    [3] H. ALZER AND C. BERG, Some classes of completely monotonic

    functions, II, Ramanujan J. 11(2) (2006), 225-248

    [4] D. E. AMOS, Computation of modified Bessel functions and their ratios,

    Math. Comput. 28 (1974), 239-251

    [5] S. ANDRAS AND A. BARICZ, Monotonicity property of generalized and

    normalized Bessel functions of complex order, Complex variables Ellipt. Eqns

    54(7) (2009), 689-696

    [6] A. BARICZ, Turn-type inequalities for generalized complete elliptic

    integrals, Math. Z. 256(4) (2007), 1202-1213

    [7] A. BARICZ, Turn-type inequalities for hypergeometric functions, Proc.

    Am. Math. Soc. 136(9) (2008), 3223-3229

    [8] A. BARICZ, Functional inequalities involving Bessel and modified Bessel

    functions of the first kind, Expo. Math. 26(3) (2008), 279-293

    [9] . BARICZ, On a product of modified Bessel functions, Proc. Am. Math.

    Soc. 137(1) (2009), 189-193

    [10] A. BARICZ, Tight bounds for the generalized Marcum Q-function, J.

    Math. Anal. Appl. 360(1) (2009), 265-277

    [11] A. BARICZ, Turn-type inequalities for some probability density functions,

    Studia Sci. Math. Hungar. 47(2) (2010), 175-189

    [12] A. BARICZ, Bounds for modified Bessel functions of the first and second

    kinds, Proceedings of the Edinburgh Mathematical Society (2010) 53, 575-

    599

    [13] A. BARICZ, Generalized Bessel functions of the first kind, Lecture Notes

    in Math. vol. 1994, Springer-Verlag, Berlin, 2010

    [14] A. BARICZ, Turn-type inequalities for modified Bessel functions, Bull.

    Aust. Math. Soc. 82(2) (2010), 254-264

  • 55

    [15] A. BARICZ AND E. NEUMAN, Inequalities involving modified Bessel

    functions of the first kind, II, J. Math. Analysis Applic. 332(1) (2007), 265-271

    [16] A. BARICZ AND Y. SUN, New bounds for the generalized Marcum Q-

    function, IEEE Trans. Inform. Theory 55(7) (2009), 3091-3100

    [17] A. BARICZ AND Y. SUN, Bounds for the generalized Marcum Q-function,

    Appl. Math. Computat. 217 (2010), 2238-2250

    [18] S. K. BHATTACHARYA, Bayesian approach to life testing and reliability

    estimation, J. Amer. Statist. Assoc., 62 (1967), pp. 4862

    [19] M. BOCHER, On certain methods of Sturm and their application to the

    roots of Bessels functions, Bull. Am. Math. Soc. 3 (1987), 205-213

    [20] D. J. BORDELON, Problem 72-15, inequalities for special functions,

    SIAM Rev. 15 (1973), 665-668

    [21] J. A. COCHRAN, The monotonicity of modified Bessel functions with

    respect to their order, J. Math. Phys. 46 (1967), 220-222

    [22] L. DEVROYE, Simulating Bessel random variables, Statist. Probab. Lett.,

    57,(2002), pp. 249257

    [23] A. ELBERT, Concavity of the zeros of Bessel functions, Studia Sci. Math.

    Hungar. 12 (1977), 81-88

    [24] I. GARGANTINI AND P. HENRICI, A continued fraction algorithm for the

    computation of higher transcendental functions in the complex plane, Math.

    Comp. 21 (1967), 18-29

    [25] A. GIL AND J. SEGURA AND N.M. TEMME, Numerical Methods for

    Special Functions, SIAM, Philadelphia (2007)

    [26] T. H. GRONWALL, An inequality for the Bessel functions of the first kind

    with imaginary argument, Annals Math. 33 (1932), 275-278

    [27] S. L. GUPTA, On an inequality for modified Bessel functions, Univ.

    Roorkee Res. J. 9 (1966), 17-19

    [28] F. HAUSDORFF, Summationsmethoden und Momentfolgen, I, Math. Z. 9

    (1921), 74-109

    [29] E. K. IFANTIS AND P. D. SIAFARIKAS, Inequalities involving Bessel and

    modified Bessel functions, J. Math. Analysis Applic. 147(1) (1990), 214-227

    [30] E. K. IFANTIS AND P. D. SIAFARIKAS, Bounds for modified Bessel

    functions, Rend. Circ. Mat. Palermo II XL (1991), 347-356

  • 56

    [31] L. JONES, An extension of an inequality involving modified Bessel

    functions, J. Math. Phys. 47 (1968), 220-221

    [32] C. M. JOSHI AND S. K. BISSU, Some inequalities of Bessel and modified

    Bessel functions, J. Austral. Math. Soc. A 50(2) (1991), 333-342

    [33] C. M. JOSHI AND S. K. BISSU, Inequalities for some special functions, J.

    Computat. Appl. Math. 69(2) (1996), 251-259

    [34] P. A. KHAZRON AND I. W. SELEZNICK, Bayesian estimation of Bessel

    K form, Random vectors in AWGN, IEEE Signal Processing Letters, Vol. 15,

    2008

    [35] C. G. KOKOLOGIANNAKI, Bounds for functions involving ratios of

    Modified Bessel functions, J. Math. Anal. Appl. 385 (2012), 737-742

    [36] A. LAFORGIA, Bounds for modified Bessel functions, J. Computat. Appl.

    Math. 34(3) (1991), 263-267

    [37] A. LAFORGIA AND P. NATALINI, On some Turn-type inequalities, J.

    Inequal. Appl. (2006), 29828

    [38] A. LAFORGIA AND P. NATALINI, Turn-type inequalities for some

    special functions, JIPAM. J. Inequal. Pure Appl. Math., 7 (2006) article 22

    [39] A. LAFORGIA AND P. NATALINI, Inequalities and Turnians for some

    special functions, S. Elaydi (Ed.) et al., Difference Equations, Special

    Functions and Orthogonal Polynomials, Proceedings of the International

    Conference, Munich, Germany, July 2530, 2005, World Scientific,

    Hackensack, NJ (2007), 422431

    [40] A. LAFORGIA AND P. NATALINI, Some inequalities for modified Bessel

    functions, J. Inequal. Appl. 2010 (2010), 253035

    [41] L. LORCH, Inequalities for some Whittaker functions, Arch. Math. (Brno)

    3 (1967), 1-9

    [42] L. LORCH, Monotonicity of the zeros of a cross product of Bessel

    functions, Math. Applic. Analysis 1(1), (1994), 75-80

    [43] A. LUSHNIKOV AND J. S. BHATT AND I. G. FORD, Stochastic approach

    to chemical kinetics in ultrafine aerosols, Aerosol Science 34 (2003), 1117-

    1133

    [44] K. S. MILLER AND S. G. SAMKO, Completely monotonic functions,

    Integr.Transf. Special Funct. 12(4) (2001), 389-402

    [45] I. NASELL, Inequalities for modified Bessel functions, Math. Comp. 28

    (1974), 253-256

  • 57

    [46] I. NASELL, Rational bounds for ratios of modified Bessel functions, SIAM

    J. Math. Analysis 9(1) (1978), 1-11

    [47] E. NEUMAN, Inequalities involving modified Bessel functions of the first

    kind, J. Math. Analysis Applic. 171(2) (1992), 532-536

    [48] R. B. PARIS, An inequality for the Bessel function , SIAM J. Math.

    Analysis 15(1) (1984), 203-205

    [49] R. PENFOLD AND J.-M. VANDEN-BROECK AND S.GRANDISON,

    Monotonicity of some modified Bessel function products, Integ. Transf.

    Special Funct. 18 (2007), 139-144

    [50] E. PETROPOULOU, Bounds for ratios of modified Bessel functions,

    Integ. Transf. Special Funct. 9(4) (2000), 293-298

    [51] R. S. PHILLIPS AND H. MALIN, Bessel function approximants, American

    Journal of Mathematics, Vol. 72, No. 2 (1950), 407-418

    [52] D. O. REUDINK, On the signs of the -derivatives of the modified Bessel

    functions and , J. Res. Nat. Bur. Standards B 72 (1968), 279-280

    [53] C. ROBERT, Modified Bessel functions and their applications in

    probability and statistics, Statist. Prob. Lett. 9(2) (1990), 155-161

    [54] D. K. ROSENTHAL, The shape and stability of a bubble at the axis of a

    rotating liquid, J. Fluid. Mech. 12 (1962), 358-366

    [55] D. K. ROSS, The stability of a column of liquid to torsial oscillations, Z.

    Angrew. Math. Phys. 21 (1970), 137-140

    [56] D. K. ROSS, Problem 72-15, Inequalities for special functions, SIAM Rev.

    15 (1973), 668-670

    [57] J. SEGURA, Bounds for ratios of modified Bessel functions and

    associated Turn-type inequalities, J. Math. Anal. Appl. 374 (2011), 516-528

    [58] H. C. SIMPSON AND S. J. SPECTOR, Some monotonicity results for

    ratios of modified Bessel functions, Q. Appl. Math. 42(1) (1984), 95-98

    [59] H. C. SIMPSON AND S. J. SPECTOR, On barreling for a special material

    in finite elasticity, Q. Appl. Math. 42(1) (1984), 99-105

    [60] S. M. SITNIK, Inequalities for Bessel functions, Dokl. Acad. Nauk SSSR

    340(1) (1995), 29-32

    [61] J. M. DE SITTER AND M. J. GOOVAERTS, On two inequalities satisfied

    by Bessel functions, Bull. Belg. Math. Soc. Simon Stevin 46 (1972), 159-164

  • 58

    [62] R. P. SONI, On an inequality for modified Bessel functions, J. Math.

    Phys. 44 (1965), 406-407

    [63] V. K. THIRUVENKATACHAR AND T. S. NANJUNDIAH, Inequalities

    concerning Bessel functions and orthogonal polynomials, Proc. Indian Nat.

    Acad. Part A 33 (1951), 373384

    [64] G. S. WATSON, Statistics on spheres (John Wiley & Sons, New York,

    1983)

    [65] G. N. WATSON, A treatise on the theory of Bessel functions (Cambridge

    University Press, 1944)

    [66] E. J. WENIGER AND J. CIZEK, Rational approximations for the modified

    Bessel function of the second kind, Comput. Phys. Commun. 59(3) (1990),

    471-493

    [67] D. V. WIDDER, The Laplace transform, (Princeton University Press,

    1941)