Davis: Present Status of Integral Equations 
33 
V. Connection with Differential Equations 
89. G. D. Birkhoff. Boundary Value and Expansion Problems of Ordinary 
Linear Differential Equations. Trans. Amer. Math. Soc., vol. 9 (1908), 
pp. 373-395. 
90. E. Cotton. Equations differentielles et equations integrales. Bull, 
de la soc. mathematique, vol. 38 (1910), pp. 144-154. 
91. M. Gevrey. Sur les equations aux derivees partielles du type 
parabolique. Journal de math., vol. 78 (1913), pp. 305-471; vol. 79 
(1914), pp. 105-148. 
92. T. Lalesco. Sur F application des equations integrales a la theorie des 
equations differentielles lineaires. Comptes Rendus, vol. 166 (1918), 
pp. 727-728. 
93. E. Picard. Sur une equation 'fonctionnelle se presentant dans la 
theorie de certaines equations aux derivees partielles. Comptes Rendus, 
vol. 144 (1907), pp. 1009-1012. 
94. E. G. Poole. On Certain Classes of Mathieu Functions. Proc. London 
Math. Soc., vol. 20 (1921-22), pp. 374-388. 
95. L. Sinigallia. Sulle equazione differenziali lineari. Atti dei Lincei, 
vol. 17 (2), (1908), pp. 106-112. 
96. M. Watanabe. On a Linear Integral Equation. Proc. of Tokyo Math.- 
Phys. Soc., vol. 8, 2d ser. (1915-16), pp. 212-213: Tohoku Math. Journal, 
vol. 8 (1915), pp. 130-174; vol. 10 (1916), pp. 220-224. 
97. C. E. Weatherburn. The Mixed Boundary Problem for the Generalized 
Potential Corresponding to the Equation V 2 U — k 2 U = 0. Quart. 
Journal of Math., vol. 46 (1914-15), pp. 83-94. 
98. C. E. Weatherburn. Boundary Problems for the Generalized Potential 
Corresponding to the Equation \7 2 U — k 2 U = 0. Quart. Journal of 
Math., vol. 46 (1914-15), pp. 66-82. 
99. E. T. Whittaker. On a Class of Differential Equations Whose Solutions 
Satisfy Integral Equations. Proc. of Edinburgh Math. Soc., vol. 33 
(1915), pp. 14-23. 
VI. Equations in Two or More Variables 
100. H. Bateman. A Class of Integral Equations. Trans. Cambridge 
Phil. Soc., vol. 20 (1906), pp. 233-255. 
101. A. Blondel. Sur V equation fonctionnelle lineaire. Comptes Rendus, 
vol. 150 (1), (1910), pp. 957-959. 
102. T. H. Gronwall. An Integral Equation of the Volterra Type. Amer. 
Annals of Math., vol. 16, 2d ser. (1914-15), pp. 119-122. 
103. O. Kellogg. Zur Theorie der Integralgleichungen A(s,t) — B(st) = 
J A(s,r) B(r,t) dr. Gottinger Nachrichten (1902), pp. 165-175. 
" o 
104. J. Soula. Sur certaines equations integrales. Atti dei Lincei, vol. 
23 (1), (1914), pp. 132-137. 
VII. Equations with Special Kernels 
105. G. Andreoli. Sui nuclei periodici di Evans e la composizione di seconda 
specie. Atti dei Lincei, vol. 25 (2), (1916), pp. 252-257, 299-305. 
