*A culture of evolved humans inhabits a doughnut-shaped gas tube that rotates around a neutron star.*

**Author**: Larry Niven

**Publisher:**

**ISBN:** 0345312708

**Category:** Neutron stars

**Page:** 260

**View:** 430

**Integral Trees**: Subtree Depth and Diameter Walter G. Kropatsch1, Yll Haxhimusa1, and Zygmunt Pizlo2 1,⋆ Vienna University of Technology, ... Integral features capture important properties of these regions and the associated trees.

**Author**: Reinhard Klette

**Publisher:** Springer Science & Business Media

**ISBN:** 9783540239420

**Category:** Computers

**Page:** 771

**View:** 253

*M. Belii Math 10 (2003) 9–15 Li, X.L., Lin, G.N.: On Trees with Integer Eigenvalues. Kexue Tongbao (Chinese Science Bulletin) 32 (11) (1987) 813–816 (in Chinese), or On Integral Trees Problems. Kexue Tongbao (English Ed.) 33 (10) (1988) ...*

**Author**: Jin Akiyama

**Publisher:** Springer

**ISBN:** 9783540706663

**Category:** Computers

**Page:** 289

**View:** 131

**The Integral Trees** fully makes up for a certain modichohum of laurel-resting that had crept into his work meanwhile; it zaps right along, combining expert action-plotting with a steady proliferation of science-borne extrapolation.

**Author**: Algis Budrys

**Publisher:** Lulu.com

**ISBN:** 9781291436044

**Category:** Science fiction

**Page:** 268

**View:** 146

*It is worth mentioning that problem ( a ) is unsolved even for trees : the known results concern integral trees of diameter less than 11. Concerning ( b ) , observe that the family of integral graphs is closed under the NEPS operation ...*

**Author**: Dragoš Cvetkovic

**Publisher:** Cambridge University Press

**ISBN:** 0521836638

**Category:** Mathematics

**Page:** 316

**View:** 387

*Every line graph L(K.) is integral. In particular, the octahedron is integral since it is L(K4) . Furthermore the Pertersen graph P is seen to be integral by applying both Corollary 1 and Corollary 6 since P = L(K5) • 3. INTEGRAL TREES ...*

**Author**: R.A. Bari

**Publisher:** Springer

**ISBN:** 9783540378099

**Category:** Mathematics

**Page:** 362

**View:** 476

**Integral trees** have been studied in [WAT2} and (WASC1]. It was proved in [WAT2) that the only **integral tree** with a complete matching is K2. Also a family of **integral trees** of diameter 4 has been constructed. All **integral trees** ...

**Author**: D.M. Cvetkovic

**Publisher:** Elsevier

**ISBN:** 0080867766

**Category:** Mathematics

**Page:** 305

**View:** 265

*Larry Niven's The Integral Trees is good oldfashioned science fiction about people living somewhere with weird physics—in a cluster of floating trees and things. I remember enjoying it on a long train journey. It won the Locus Award.*

**Author**: Jo Walton

**Publisher:** Macmillan

**ISBN:** 9781466865730

**Category:** Literary Criticism

**Page:** 336

**View:** 246

*Proof The constant term of the characteristic polynomial of a tree is, up to sign, the number of perfect matchings. ... D For a long time it has been an open question whether there exist integral trees of arbitrarily large diameter.*

**Author**: Andries E. Brouwer

**Publisher:** Springer Science & Business Media

**ISBN:** 9781461419396

**Category:** Mathematics

**Page:** 250

**View:** 178

*Integral. trees. of. odd. diameters. By a News Reporter-Staff News Editor at Journal of Mathematics — Fresh data on ... from the School of Mathematics, “Recently, Csikvari proved the existence of integral trees of any even diameter.*

**Author**:

**Publisher:** ScholarlyEditions

**ISBN:** 9781490110158

**Category:** Mathematics

**Page:** 416

**View:** 225