C8 



Epsteen, Saul. Determination of the 

 group of rationality of a linear differen- 

 tial equation. Amer. Math. Mon., 

 Springfield, Mo., 10, 1903, (4-8). [4850]. 



6374 



Analogue of Sylvester's 



dialytic method of elimination. Amer. 

 Math. Mon., Springfield, Mo., 10, 1903. 

 (63-64). [4800]. 5375 



An elementary exposition 



of the theory of finite differences. 

 Amer. Math. Mon., Springfield, Mo., 

 11, 1904, (131-136). [6000 6020]. 



5376 



1 On linear differential 



•congruences. New York, N.Y., Bull. 

 Amer. Math. Soc, (Ser. 2), 10, 1903, 

 ((23-30). [2810]. 5377 



On linear homogeneous 



'difference equations and continuous 

 groups. New York. N.Y., Bull. Amer. 

 Math. Soc, (Ser. 2), 10, 1904, (499-504). 

 [6000]. 5378 



On the definition of re- 



<iucible hypercomplex number-systems. 

 JSTew York, N.Y., Trans. Amer. Math. 

 Soc, 5, 1904, (105-109). [0860]. 5379 



Erdmann, Karl. Anfangsgriinde der 

 ebenen Geometrie verbunden mit einer 

 Aufgabensammlung. Tl 1. Dresden 

 (Bleyl & Kaemmerer), 1904, (VIII + 

 178). 23 cm. Geb. 2,55 M. [6810]. 



5380 



Erler, W. Die Elemente der Kegel- 

 schnitte in synthetischer Behandlung. 

 -^um Gebrauche in der Prima hoherer 

 -Landesanstalten bearb. 6. Aufl., 



besorgt v. L. Huebner. Leipzig u. 

 Berlin (B. G. Teubner), 1903, (VI + 60). 

 -23 cm. 1,20 M. [7210 7220]. 5381 



[Ermakov, V[asilij] P[etrovic.] 

 EpMaKOB-B, B. n. K-i. leopiii o6likho- 

 BeiiHbixT. flH(})(|)epeHn;ia;itHbix'b ypaB- 

 iHeHiii nepearo nopsAKa. [Sur la thcorie 

 des equations differentielles du premier 

 ordre.] Charfkov, Soobgc. mat. Obsc., 

 (ser. 2), 8, 1902, (113-122). [48201. 



5382 



Bapian,ioHHoe iiCHHCienie 



no BeMepiuTpaccy. [Calcul des 

 variations d'apres M. Weierstrass.] 

 Kiev. Otc. prot. fiz.-mat. ObSc., 1902, 

 [1903]. (53-57). [3280]. 5383 



Ana;iHTHHecKaa reoMeipiff. 



JleKAiii. 2 II3A- MacTb I. reoMeTpia 

 Ha nJioCKOCTii. [Analytische Geometrie. 

 I Teil. Geometric der Ebene.] 2 Aufl. 



Kiev, 1903, (IV + 120). 25 cm 1 Rb 

 [6430]. 5384 



Eschamard (d'), V. Un teorema sui 

 gruppi abeliani. Giorn. mat., Napoli, 

 41, 1903, (203-204). [1210]. 5385 



Esclangon. Sur les fonctions quasi- 

 periodiques. Paris, C.-R. Acad, sci., 

 137, 1903, (305-307). [3220 5610]. 



5386 



Escott, E. B. [Computation of 

 logarithms.] Educ. Times, London, 57, 

 1904, (487). [0090]. 6387 



[Esipov, K. A.] EcHHOB'B, K. A. Kt 

 Bonpocy 061. HHierpHpoBamH JiHHeft- 

 Htixt ypaBHeiiiii2-ro nopaAKa ci. asyMa 

 neaaBiicHMUMH nepeM-fcHHUMH h ct. no- 



CTOaHHUMH KO0(|)(J)HU,ienTaMH. [Sur 



I'integration des equations lineaires du 

 2me. ordre a deux variables indepen- 

 dantes et avec des coefficients con- 

 stants.] Moskva, Izv. ObSc. liub. jest., 

 102, 1903, No. 2, (1-6). [4840]. 5388 



Estanave, E. Du calcul explicite des 



integrales definies du type 



H. 



-{' 



z^ sin. jz dz, 



zf cos. jz dz 



avec quelques applications a la recherche 

 de developpements en series trigonome- 

 triques. Nouv. ann. math., Paris, 

 (ser. 4), 3, 1903, (348-356). [3260]. 



5389 



Everett, Joseph David. On a calculus 

 of point assemblages. London, Proc 

 Math. Soc, (Ser. 2), 1, 1904, (437-450). 

 [6820]. 5390 



On normal piling as 



connected with Osborne Reynolds' 

 theory of the Universe. Phil. Mag., 

 London, (Ser. 6), 8, 1904, (30-37). 

 [6820]. 5391 



Faber, Georg. Ueber arithmetische 

 Eigenschaften analytischer Funktionen. 

 Math. Ann., Leipzig, 58, 1904, (545- 

 657). [3610 2920 3220]. 6392 



Falkenhagen, J[urgen] H[einrich] 

 M[oritz]. Ueber das Verhalten der 

 Integrate einer Riccati'schen Gleichung 

 in der Nahe einer singularen Stelle. 

 Amsterdam, Nieuw Arch. Wisk., (Ser. 2), 

 6, [1904], (209-248). [4870]. 6393 



Falter, Ludwig. Die erkenntnis- 

 theoretischen Grundlagen der Mathe- 



