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                    | Grimaldi R.P., Rothman D.J. — Discrete and Combinatorial Mathematics: An Applied Introduction | 
                  
                
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                    | Предметный указатель | 
                  
                
                    
                        n-dimensional hypercube      532  
n-fold product      248  
n-tuple      248  
Nand (connective)      66  
NAND gate      727 728  
Napier, John      A-6  
Natural logarithm      284 A-6  
Natural numbers      133  
Natural position      402  
Nazi cipher      333  
Neal, David      444  
Nearest neighbor      771  
Necessary and sufficient      48  
Necessary condition      48  
Negation      48  
Negation (logic gate)      719  
Negation of quantified statements      92 96 97  
Negative      138  
Negative integers      227  
Nemhauser, G.L.      562 575 576  
Nested multiplication method      301  
network interface      12  
network number      12  
Network, dual      551—553  
Network, electric power      666  
Network, electrical      551 552 573 574 581 622  
Network, gating      309 719—722 731  
Network, logic      719 720  
Network, multiple output      720 721  
Network, parallel      64  
Network, PERT      357 377  
Network, Program Evaluation and Review Technique      357 377  
Network, series      65  
Network, switching      64—66  
Network, transport      644—658  
Neumann, Peter M.      796 797  
Neutrons      486  
New York Times      707  
Newsom, Carroll V.      119 120 304 305  
Newton, Sir Isaac      303  
Next state      320  
Next state function      320 682  
Nicomachus of Gerasa      707  
Nievergelt, Jurg      506 508  
Nilsson, Nils J.      119 120  
Nine-times repetition code      773 see  
Niven, Ivan      243 244 444 445 708  
No degree      800  
Nobel prize      187  
Node      349 514 see Vertices"  
Noether, Emmy      706 707  
Noise (in a binary symmetric channel)      761  
Non-Euclidean geometry      820  
Nonabelian group      749  
Nonadjacent vertices      561  
Noncommutative operation      590  
Noncommutative ring      675 705  
Nonempty universe      89  
Nonequivalent configurations      783 784 790 791  
Nonequivalent seating arrangements      784  
Nonequivalent states      374  
Nonexecutable specification statement      369  
Nonhomogeneous recurrence relation      450 451 456 470—481  
Nonlinear recurrence relations      449  
Nonnegative integers      133  
Nonplanar graph      540 541 543  
Nontaking kings      510  
Nontaking rooks      404 407  
Nontrivial subgroup      748  
Nonzero complex numbers      134  
Nonzero division      221 356  
Nonzero rational numbers      133  
Nonzero real numbers      134  
Nor (connective)      66  
NOR gate      727 728  
Normal subgroup      795 831  
Not p      48  
Not... and (connective)      66  
Not... or (connective)      66  
Null child      594 595  
Null graph      523  
Null set ( )      127  
Number of divisions      458 459  
Number of positive divisors      239  
Number theory      29 188 222 242—244 303 304 394 411 412 432 442 673 705 706  
Numerical analysis      304  
O(g) (order of g)      290  
O(g) on      5 498  
Object program      253 302  
octahedron      548  
Octal system (base 8)      225  
od(v)      535  
od(z)      644  
Odd integer      113 218  
Odd-degree vertices      531  
Officers      819  
Ohm’s Law      573  
Ohm’s Law for electrical flow      573  
On the Theory of Groups, as Depending on the Symbolic Equation        794  
One element of a Boolean algebra      733  
One factor      666  
One-dimensional array      254  
One-terminal-pair-graph      552  
One-to-one correspondence      279 303 370 427 428 435 526 551 660 A-23—A-27  
One-to-one function      255—257 279 280 409 410  
One-unit delay machine      329  
One’s complement      227—229  
Onto function      260—265 287 288 392 411 439 682 699 739  
Open contact      551 553  
Open interval      99 100 134 164  
Open statement      86 87 89—92 105 106 109 123 126 194 195  
Open switch      64 551 553  
Open trail      534  
Open walk      515 516  
Operand      136  
Operation      136  
Operations research      574 631 667  
Optimal prefix code      613  
Optimal spanning tree      638 639 642  
Optimal tree      612 613 640—642  
Optimization      41 324 562 581 631  
Or (connective)      48  
Or (exclusive)      48 56  
OR gate      719—721  
Order      6 14 15 30 125 130  
Order at least      293  
Order for a Boolean algebra      736  
Order for functions      290 292 293  
Order for the vertices of a tree      592 593  
Order g (or, Order of g), O(g)      290—292  
Order in a tree      588 589  
Order of a finite field      812 813  
Order of a group      746  
Order of a group element      754  
Order of a linear recurrence relation      456  
Order of quantifiers      98  
Order-preserving function      366 509  
Ordered array      501—503  
Ordered binary tree      488  
Ordered pair      152 176 248 252 253 282 284  
Ordered rooted tree      588  
Ordered set      129 A-25  
Ordered sum      205  
Ordered tree      594  
Ordered triples      827  
Orderly permutation      455  
Ordinary generating function      436 440 443 444 see  
Ore, Oystein      561 668 669  
Organic compounds      791—793  
Origin (of an edge)      349 514  
 | Orlin, James B.      562 575 638 643 654 668  
Orthogonal Latin squares      816—818 831  
Out degree of a vertex      535 588 644  
Outcome      150 151 154 155 158 175 177 178  
Outgoing degree of a vertex      535  
Output (for a finite state machine)      309 319  
Output (from a gate)      720  
Output (from an algorithm)      253 289  
Output alphabet      320 321  
Output function      320 682  
Output string      321 322  
Overcounting      19 20 411  
Overflow error      229  
O’Bryant, Kevin      623 624  
p is sufficient for q      48  
p logically implies q      69  
p(m, n), the number of partitions of m into exactly n positive summands      444  
p(n), the number of partitions of n      432 443  
P(n, r)      7 15 41 436  
Pair of orthogonal Latin squares      816—819 823  
Pairs of rabbits      505  
Pairwise disjoint subboards      405 408  
Pairwise incidence matrix      826  
Palindrome      13 174 197 319 425 426 431 432 460 461 469  
Palmer, Edgar M.      574 576  
Pan balance      602 603  
Papadimitriou, Christos H.      333 334  
Parallel algorithm      531  
Parallel classes      822—824 828  
Parallel computer      531  
Parallel lines      822 827 828  
Parallel network      64  
Parent      588 593 597 613  
Parenthesize an expression      38 39 490 494  
Parity checks      778  
Parity-check code      764 765 see  
Parity-check equations      770 777 778 see  
Parity-check matrix      772 774 776—779 see  
Parker, Ernest Tilden      819 831  
Partial breadth-first spanning tree      656  
Partial fraction decomposition      426 483 485  
Partial function      260  
Partial order      337 341—343 356—364 376 377 476 533 737 738 see  
Partial order for a Boolean algebra      736—738  
Partial ordering relation      357 see "Poset"  
Partial semipath      652  
Partially ordered set      357 377 see  
Particular solution      471 475 479 482  
Partition      366—375 377 378  
Partitions of integers      29 31 432—435 443 444  
Pascal, Blaise      42 188 244  
Pascal’s triangle      133 135 188  
Patashnik, Oren      304 305 506 507  
Path (in a graph)      351 516 517 556 582  
Path (staircase)      9 36—38 130 132  
Pattern      124  
Pattern inventory      783 789—793  
Pawlak, Zdzislaw      623  
Peacock, George      186  
Peano, Giuseppe      188 243 377  
Peano’s postulates      243  
Pegs      472 473  
Peile, Robert E.      796  
Peirce, Charles Sanders      119 377  
Pendant vertex      533 549 583 584  
Pennies      462 495  
Pentium processor      5  
Perfect integer      241  
Perfect matching      666  
Perfect square      90 239  
Perfect, H.      668 669  
Perl      4  
Permutation      6—8 14 15 41 42 217 220 393 394 403 408 411 436 452 453 490—492 495 506 see  
Permutation group      749 750 781 782 830 see  
Permutation matrix      670  
PERT network      357 377  
Petersen graph      543 566 574  
Petersen, Julius Peter Christian      574  
Peterson, Gerald R.      742 743  
Pi notation      239  
Pigeonhole Principle      273—278 287 288 303—305 327 328 796  
Plaintext      690—692 760  
Planar graph      540—553 573  
Planar-one-terminal-pair-graph      552  
Planarity of graphs      352 615 see  
Platonic solids      547 548 556  
Pless, Vera      796 797  
Points at infinity      828  
Polaris submarine      357  
Polish notation      591 592  
Polya, George      623 625 745 796 797  
Polya’s Method of Enumeration      623 779 789 891  
Polya’s theory in graphical enumeration      574  
Polyhedra      573  
Polynomial equation      794  
Polynomial evaluation algorithm      301  
Polynomial in the indeterminate x      799  
Polynomial order      293  
Polynomial ring      801 830  
Polynomial time complexity      293  
pop      490—493  
POSET      357—364  
Poset, antichain      381  
Poset, chain      381  
Poset, glb (greatest lower bound)      363  
Poset, greatest element      363  
Poset, greatest lower bound (glb)      363  
Poset, Hasse diagram      358—361  
Poset, lattice      364  
Poset, least element      363  
Poset, least upper bound (lub)      363  
Poset, length of a chain      381  
Poset, lower bound      363  
Poset, lub (least upper bound)      363  
Poset, maximal chain      381  
Poset, maximal element      362  
Poset, minimal element      362  
Poset, order-preserving function      366  
Poset, topological sorting algorithm      360 361 363  
Poset, total order      359—361  
Poset, upper bound      363  
Positive closure of a language      315  
Positive integers      133 136 193  
Positive rational numbers      133  
Positive real numbers      134  
Postorder (traversal)      592—595 623 628  
Postulates      87 98 243  
Power series      417 418 433 443 484  
Power set      128 476 533  
PowerBall      15  
Powers of        310  
Powers of a function      282  
Powers of a group element      747  
Powers of a language      315  
Powers of a real number      A-2  
Powers of a relation      345  
Powers of a ring element      802  
Powers of an alphabet      310  
Powers of strings      312  
Pr(B|A)      167  
Precedence graph      350  
Precedes      347 348  
Precise instructions      233  
Pred (predecessor) function      307  
Prefix      312 313 315 338  
Prefix codes      609 611 613 614 624  
Prefix notation      591  
Pregel River      533  
Preimage (of a set)      285 286  
Preimage (of an element)      253  
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