4880 



179 



5230 



4880 GENERAL THEORY OF 

 ORDINARY EQUATIONS, NOT 

 LINEAR, OF ORDER HIOHER 

 THAN THE FIRST. 



Burkhardt, H[einrich]. tJber Differeu- 

 tialgleiehuiigeii. Monllfte Math. Phys., 

 Wien, 12, 1901, (290-298). 



Epsteen, Saul. Uiitei-sucliungen iiber 

 lineare Ditferentialgleicliungen 4. 

 Ordnuiig und die zugeliorigen Gruppen. 

 Amer. J. Math., Baltimore, Md., 25, 

 1903, (123-15C). 



Hadamaxd, J. Sur une classe d'equa- 

 tions differeutielles. Paris, Bui. soc. 

 math., 30, 1902, (208-220). 



Liouville, R. Sur la reductibilite des 

 equations difterentielles. Paris, C.-R. 

 Acad, sci., 136, 1903, (146-148). 



Maillet, Edm. Sur les fonctions en- 

 tieres d'ordre infini et les equations 

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

 136, 1903, (348-351). 



Painlev^, P. Sur I'irreductibilite de 

 Tequation y" = ^if -f x. Paris, C.-R. 

 Acad, sci., 135, 1902, (1020-1025). 



Sur la reductibilite des 



equations differeutielles. Paris, C.-R. 

 Acad, sci., 136, 1903, (189-193). 



Differential Forms and Differential 

 Invariants. 



5200 



GENERAL. 



Pick, Georg. Ueber lineare Differen- 

 tialgleichungen in invarianter Darstel- 

 lung. Wien, SitzBer. Ak. Wiss., 112, 

 1903, Abth. Ha.. (82-93). 



Naetsch, E[niilJ. Ueber ein in der 

 Vektor- Analysis auftrctendes System par- 

 tieller Differentialgieichungen I. Ord- 

 nung. Arch. Math., Leipzig, (3. Reihe), 

 5, 1903, (56-67). 



Pfaflf, Johann Friedricli. Allgemeine 

 Methode partielle Differentialgieichungen 

 zu integriren (1815). Aus dem Lateini- 

 schen iibers. u. hrsg. v. Gerhard Kowa- 

 lewski. (Ostwald's Klassiker der exakten 

 Wissenschaften, Nr 129.) Leipzig (W. 

 Engelmann), 1902, (84). 19 cm. 

 1,40 M. 



Wilcz3mskl, E. J. On a certain con- 

 gruence associated with a given ruled 

 surface. New York, N.Y., Trans. Amer. 

 Math. Soc, 4, 1903, (185-200). 



Covariants of systems of 



linear differential equations and applica- 

 tions to the theory of ruled surfaces. 

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

 Soc, 3, 1902, (423-450). 



5220 DIFFERENTIAL FORMS 

 OF THE SECOND AND HIGHER 

 ORDERS. 



Haskins, Charles Nelson. On the in- 

 variants of differential forms of degree 

 liigher than two. New York, N.Y. 

 Trans. Amer. Math. Soc, 4, 1903 (3o- 

 43). 



. On the invariants of quad- 

 ratic differential forms. New York, 

 N.Y., Trans. Amer. Math. Soc, 3, 1902. 

 (71-91), Errata. lh\d. (501). 



Pascal, E. Introduzione alia teoria 

 invariantiva delle equazioni di tipo ge- 

 nerale ai differenziali totali di second' 

 ordine. Memorial. Ann.mat., Milano, 

 (Ser. 3), 7, 1902, (1-37). 



5210 LINEAR DIFFERENTIAL 

 FORMS; PFAFFIANS. 



Brill, John. Suggestions towards the 

 formation of a general theory of systems 

 of Pfaffian equations. Part V. Q. J. 

 ]Math., London, 35, 1903, (67-86). 



Goursat, E. Sur quelques transforma- 

 tions des equations aux derivees par- 

 tielles du second ordre, Ann. Fac sci. 

 Toulouse, (s6r. 2), 4, 1902, (299-340). 

 (A-9833) 



5230 TRANSFORMATION OF 

 DIFFERENTIAL FORMS, 



INCLUDING TANGENTIAL 



(OR CONTACT) TRANSFOR- 

 MATIONS. 



Academic des Sciences. Grand prix 

 des Sciences mathematiques (Rapport). 

 Paris, C.-R. Acad, sci., 135, 1902, 

 (1154-1161). 



