Knowledge

Leifur Ásgeirsson

Source 📝

364: 230: 112:Ásgeirsson, Leifur (1937). "Über eine Mittelwertseigenschaft von Lösungen homogener linearer partieller Differentialgleichungen 2. Ordnung mit konstanten Koeffizienten". 63: 98:. Immediately after the decisions had been taken Fenchel, in agreement with Pleijel, wrote to the other editors and suggested Bundgaard as co-ordinating editor of 464: 359:{\textstyle \sum _{i=1}^{n}{\Big (}{\frac {\partial ^{2}u}{\partial x_{i}^{2}}}-{\frac {\partial ^{2}u}{\partial y_{i}^{2}}}{\Big )}=0} 459: 51: 469: 170:—— (1961). "On Cauchy's problem for linear partial differential equations of second order in four variables". 449: 367: 22:(25 May 1903 – 19 August 1990) was the first Icelandic mathematician to gain major international recognition. 68: 35: 31: 58:
he was appointed in 1943 a lecturer in mathematics and in 1945 a full professor of mathematics.
454: 209: 55: 444: 439: 8: 137: 415: 149:—— (1956). "Some hints on Huygens' principle and Hadamard's conjecture". 141: 129: 43: 405: 179: 158: 121: 39: 410: 393: 91: 87: 83: 95: 433: 419: 389: 133: 183: 162: 42:. From 1931 to 1943 Leifur Ásgeirsson was the head of a district school in 47: 125: 369:
Comptes rendus du Congrès international des mathématiciens, Oslo 1936
74:
was founded in 1953 with Ásgeirsson as one of the founding editors.
46:, located in southwestern Iceland's Reykjadalur Valley east of 227:Ásgeirsson, Leifur. "Ein Mittelwertsatz für die Lösungen von 233: 358: 345: 257: 431: 90:, from Iceland: Leifur Ásgeirsson, from Norway: 394:"On the foundation of Mathematica Scandinavica" 226: 172:Communications on Pure and Applied Mathematics 151:Communications on Pure and Applied Mathematics 384: 382: 34:and received his doctorate in 1933 from the 465:Academic staff of the University of Iceland 50:. In 1936 he was an invited speaker at the 379: 169: 148: 111: 82:... editors were appointed. From Denmark: 409: 366:angewandt auf zwei Potentialfunktionen". 30:Leifur Ásgeirsson graduated in 1927 from 105: 52:International Congress of Mathematicians 388: 25: 432: 204: 202: 200: 375:. Vol. Tome II. pp. 51–52. 210:"The Icelandic Mathematical Society" 197: 13: 322: 308: 280: 266: 14: 481: 460:University of Göttingen alumni 220: 1: 470:20th-century Icelandic people 191: 7: 38:. His doctoral advisor was 10: 486: 411:10.7146/math.scand.a-14409 450:Icelandic mathematicians 398:Mathematica Scandinavica 80:Mathematica Scandinavica 64:Mathematica Scandinavica 32:Reykjavik Junior College 36:University of Göttingen 16:Icelandic mathematician 360: 254: 184:10.1002/cpa.3160140302 163:10.1002/cpa.3160090304 103: 361: 234: 114:Mathematische Annalen 106:Selected publications 76: 56:University of Iceland 231: 26:Education and career 339: 297: 94:, and from Sweden: 356: 325: 283: 126:10.1007/BF01571637 341: 299: 20:Leifur Ásgeirsson 477: 425: 423: 413: 386: 377: 376: 374: 365: 363: 362: 357: 349: 348: 342: 340: 338: 333: 320: 316: 315: 305: 300: 298: 296: 291: 278: 274: 273: 263: 261: 260: 253: 248: 224: 218: 217: 206: 187: 166: 145: 86:, from Finland: 72: 54:in Oslo. At the 485: 484: 480: 479: 478: 476: 475: 474: 430: 429: 428: 387: 380: 372: 344: 343: 334: 329: 321: 311: 307: 306: 304: 292: 287: 279: 269: 265: 264: 262: 256: 255: 249: 238: 232: 229: 228: 225: 221: 208: 207: 198: 194: 108: 66: 40:Richard Courant 28: 17: 12: 11: 5: 483: 473: 472: 467: 462: 457: 452: 447: 442: 427: 426: 390:Branner, Bodil 378: 355: 352: 347: 337: 332: 328: 324: 319: 314: 310: 303: 295: 290: 286: 282: 277: 272: 268: 259: 252: 247: 244: 241: 237: 219: 195: 193: 190: 189: 188: 178:(3): 171–186. 167: 157:(3): 307–326. 146: 120:(1): 321–346. 107: 104: 88:Gustav Elfving 27: 24: 15: 9: 6: 4: 3: 2: 482: 471: 468: 466: 463: 461: 458: 456: 455:PDE theorists 453: 451: 448: 446: 443: 441: 438: 437: 435: 421: 417: 412: 407: 403: 399: 395: 391: 385: 383: 371: 370: 353: 350: 335: 330: 326: 317: 312: 301: 293: 288: 284: 275: 270: 250: 245: 242: 239: 235: 223: 215: 211: 205: 203: 201: 196: 185: 181: 177: 173: 168: 164: 160: 156: 152: 147: 143: 139: 135: 131: 127: 123: 119: 115: 110: 109: 102: 101: 97: 93: 89: 85: 81: 75: 73: 70: 65: 59: 57: 53: 49: 45: 41: 37: 33: 23: 21: 424:(See p. 12.) 401: 397: 368: 222: 213: 175: 171: 154: 150: 117: 113: 100:Math. Scand. 99: 79: 77: 62: 61:The journal 60: 29: 19: 18: 445:1990 deaths 440:1903 births 404:(1): 5–18. 67: [ 434:Categories 192:References 420:1903-1807 323:∂ 309:∂ 302:− 281:∂ 267:∂ 236:∑ 142:122332213 134:0025-5831 48:Reykjavík 392:(2003). 214:MacTutor 96:Pleijel 84:Fenchel 418:  140:  132:  92:Skolem 44:Laugar 373:(PDF) 138:S2CID 71:] 416:ISSN 130:ISSN 78:... 406:doi 180:doi 159:doi 122:doi 118:113 436:: 414:. 402:93 400:. 396:. 381:^ 212:. 199:^ 176:14 174:. 153:. 136:. 128:. 116:. 69:fr 422:. 408:: 354:0 351:= 346:) 336:2 331:i 327:y 318:u 313:2 294:2 289:i 285:x 276:u 271:2 258:( 251:n 246:1 243:= 240:i 216:. 186:. 182:: 165:. 161:: 155:9 144:. 124::

Index

Reykjavik Junior College
University of Göttingen
Richard Courant
Laugar
Reykjavík
International Congress of Mathematicians
University of Iceland
Mathematica Scandinavica
fr
Fenchel
Gustav Elfving
Skolem
Pleijel
doi
10.1007/BF01571637
ISSN
0025-5831
S2CID
122332213
doi
10.1002/cpa.3160090304
doi
10.1002/cpa.3160140302



"The Icelandic Mathematical Society"
Comptes rendus du Congrès international des mathématiciens, Oslo 1936

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.