A control system is called bilinear if it is described by linear differential equations in which the control inputs appear as coefficients. The study of bilinear control systems began in the 1960s and has since developed into a fascinating field, vital for the solution of many challenging practical control problems. Its methods and applications cross inter-disciplinary boundaries, proving useful in areas as diverse as spin control in quantum physics and the study of Lie semigroups.

The first half of the book is based upon matrix analysis, introducing Lie algebras and the Campbell-Baker-Hausdorff Theorem. Individual chapters are dedicated to topics such as discrete-time systems, observability and realization, examples from science and engineering, linearization of nonlinear systems, and input-output analysis.

Written by one of the leading researchers in the field in a clear and comprehensible manner and laden with proofs, exercises and Mathematica scripts, this involving text will be a vital and thorough introduction to the subject for first-year graduate students of control theory. It will also be of great value to academics and researchers with an interest in matrix analysis, Lie algebra, and semigroups.

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It seems like only yesterday that Evangeline Mudd was in the Ikkinasti Jungle, rubbing noses with a headhunter. Now, somehow, swinging from the branches of the old maples near her cozy New England bungalow isn’t nearly exciting enough. But when a mysterious letter marked URGENT!!! arrives, Evangeline is reminded of a promise she needs to keep.

Going undercover as a newspaper reporter and with the help of Alexy Alexy, the world’s highest-jumping dancer, Evangeline must make good on her vow to set free the animals at Mudd’s Marvelous Minks. But can they avoid Alexy Alexy’s dastardly guardian, Ratsputin? What if Melvin Mudd, her father’s second cousin twice removed, recognizes her? And will Melvin’s wife, the ditsy India Terpsichore, really go through with that crazy comeback ballet she’s staging?...

An ever-patient kitty knits away with one watchful eye on three impish kittens in a charming tale that's purr-fect for bedtime — or anytime.

"Clickety-click.
Tickety-tick.
Knitty Kitty sits and knits."

What could Knitty Kitty be knitting? Something to keep three mischievous kittens toasty and comfy, of course. But after the snow falls and the moon comes up and it's bedtime for kittens everywhere, what will keep them all warm and snug? Knitty Kitty has the answers! With a fun, rhythmic text and delightfully detailed illustrations, the storybook team of David Elliott and Christopher Denise knit together a read-aloud that little ones will cozy right up to....

A lyrical bedtime tale of a little boy and his bear is an ode to the magic of dreams — and the transformative power of the imagination.

As a little boy falls peacefully into sleep and starts to dream, his teddy bear grows and growls and pops his button nose to turn into a real grizzly bear. And amazingly, the boy becomes a grizzly bear, too — following his friend to the nighttime forest to hunt and prowl, feast and fish until the morning sun returns. David Elliott's spare, poetic text and Max Grafe's luminous illustrations tell a transfixing bedtime story, gently carrying sleepy listeners into dreamland....

The Wuv Bunnies have landed! When a giant carrot spaceship sets down in young Hercules Smith's backyard and two large rabbits hop out, Hercules knows he's in for an interesting morning....

A rhyming celebration of all sorts of creatures, from the Feather People (birds) to the Dreaming People (dogs) and even the People People....

One chicken twirls like a top. Two chickens do the bunny hop. Chickens everywhere are breaking into dance. Count-and boogie-up to ten and join the fun, as chickens shake, shimmy, and samba till the cows come home. This whimsical counting book, featuring snappy verse and hilarious art, is sure to have young readers dancing in their seats....

The "Wuv Bunnies" have landed! When a carrot spaceship sets down in Hercules Smith's backyard and two large rabbits hop out, Hercules knows he's in for an interesting morning. The Wuv Bunnies warn Hercules that the evil Funny Bunnies have invaded the earth. Between fending off the Wuv Bunnies' smooches (the rabbits just w-u-u-u-v to wuv!) and trying to save the human race, Hercules is kept busy. Hilariously illustrated by Ethan Long, this silly graphic novel will have readers rolling....

A New York Ttimes best-selling author and a Caldecott Honor-winning illustrator evoke life on a farm in a simple, lyrical text and boldly expressive images.

From the bull to the barn cat to the wild bunny, the farmyard bustles with life. The rooster crows, the rams clash, the bees buzz, and over there in the garden, a snake — silent and alone — winds and watches. David Elliott’s graceful, simple verse and Holly Meade’s exquisite woodcut and watercolor illustrations capture a world that is at once timeless yet disappearing from view — the world of the family farm....

Jeremy Cabbage is an orphan stuck at Harpwitch’s Home for Mean Dogs, Ugly Cats, and Strey Children, where the dogs are treated better than the kids. And things aren’t much better on the outside: the city is ruled by the arrogant and foolish Baron Ignatius von Strompié, whose Wisdom Wagons ride the streets blaring out gems like “Ignorance is bliss,” and who’s on a campaign to stamp out anyone different. At the top of his list are the cloons, outlandish people who look and act like clowns. Jeremy’s only chance is a good adoption–but who would possibly adopt Jeremy, an unloved, unwanted 11-year-old? The answer sets Jeremy off on an outrageous, comical adventure that could bring him face to face with the Baron himself....

Hold on to the chandeliers! An eccentric couple’s passion for primates leads their dauntless daughter on a wild adventure in this offbeat illustrated novel.

Learning to swing from the rafters, eating peanut-butter sandwiches with her feet . . . Evangeline Mudd has had an unusual childhood. Her primatologist parents have taken their child-rearing cues from the golden-haired ape, whose resourceful and fun-loving lifestyle they deeply admire. But life takes a drastic turn when Evangeline’s parents are called away from their cozy New England bungalow on a research trip to the Ikkinasti Jungle. And when they mysteriously fail to return, it’s up to Evangeline to travel to Ikkinasti and find them herself! In this comical, fast-paced tale, David Elliott ventures deep in the jungle for some close encounters with giant spitting spiders, a crazed developer, a retired headhunter, some persistent primates, and an impressively plucky heroine....

"Elliott’s cup runneth over with good cheer in this rhymed toast to people — and not just the two-legged variety. . . . Will have listeners calling for another round." — Kirkus Reviews

Here’s to the birds and the bears and the bugs! Here’s to the weird and wacky, the cute and creepy! From toothy fish to get-you-when-you’re-sleeping cats to lick-lick-lick-lick-lick-lick dogs, every creature is unique and lovable . . . especially you! David Elliott’s infectiously joyful poem and Randy Cecil’s brilliant, amusing artwork invite us to celebrate the world’s vast diversity — and feel pretty happy with our place in it, too....

Jeremy Cabbage is an orphan stuck at Harpwitch’s Home for Mean Dogs, Ugly Cats, and Strey Children, where the dogs are treated better than the kids. And things aren’t much better on the outside: the city is ruled by the arrogant and foolish Baron Ignatius von Strompié, whose Wisdom Wagons ride the streets blaring out gems like “Ignorance is bliss,” and who’s on a campaign to stamp out anyone different. At the top of his list are the cloons, outlandish people who look and act like clowns. Jeremy’s only chance is a good adoption–but who would possibly adopt Jeremy, an unloved, unwanted 11-year-old? The answer sets Jeremy off on an outrageous, comical adventure that could bring him face to face with the Baron himself.


From the Hardcover edition....

THIS EDITION IS INTENDED FOR USE IN SCHOOLS AND LIBRARIES ONLY. After eating constantly at the fast food restaurant known as Gussy's, ten-year-old Roscoe finds himself turning into a giant bug....