762
Factorial function, 630-632
Finite increments formula, 355
Finite intersection property, 109
Fixed points, 225
Fluid:
irrotational, 510
solenoidal, 510
Fluid dynamics, 508-517
Function( s ):
analytic, 309
generalized, 390-401
associated with a given
function, 130-131
bicontinuous, 149
of classes C(A), 'D(A), 1i(A),
320
continuous, 142-149
along an arc, 157
uniformly, 148
defined by
real improper integrals,
526-529
sequences, 522-523
series, 521-522
discontinuous, 144
geometric representation,
127-130
harmonic, 321
holomo:rphic (see Analytic)
light, 385
meromorphic, 664
monogenic, 309
multiple-valued, 7, 485-501
open, 149
polygenic, 342
polynomial, 260-264
primitive, 409
rational, 264-267
reciprocal, 131, 218-219
regular at a point, 650
single-valued, 7
singulru: at a point, 653
[Function( s)]
subharmonic, 328
Functional, 662
Index
Functional equation of the
gamma function, 617
Gamma function, 613-627
graphs, 626
Gauss test, 196
formula (see Euler formula)
Graph of f:X -t Y, ·5
Green's theorem, 436
complex form, 441
discrete form, 448
Hadamard's three-circles
theorem, 589-590
Half-planes, 85-86
Harmonic conjugate, 322
>.-harmonic conjugate, 396
Harmonic function, 321
>.-harmonic, 396
Heaviside function, 485
Homeomorphism, 149
Homology, 167, 461
Homotopy, 161
of arcs with fixed endpoints,
162
of curves, 162, 462
linear, 163
Hurwitz polynomial, 272
theorem, 747-748
Hyperbolic functions, 275-276,
301-302, 305
Hypercomplex numbers, 69-72
Hypergeometric function, 635-
641
Identity principle:
for analytic functions, 569-570
for polynomials, 261
for power series, 209-210